<XBRL>
<?xml version="1.0" encoding="us-ascii"?>
<!--XBRL document created with Bowne Tagger. XBRL Parser version 10.0.0.108-->
<!--Based on XBRL 2.1-->
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:slb="http://slb.com/20111231" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" targetNamespace="http://slb.com/20111231" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" elementFormDefault="qualified" attributeFormDefault="unqualified">
  <annotation>
    <appinfo>
      <link:roleType roleURI="http://slb.com/role/SummaryOfAccountingPoliciesDetailsTextual" id="SummaryOfAccountingPoliciesDetailsTextual">
        <link:definition>06021 - Disclosure - Summary of Accounting Policies (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/PensionAndOtherBenefitPlansTables" id="PensionAndOtherBenefitPlansTables">
        <link:definition>0518 - Disclosure - Pension and Other Benefit Plans (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/PensionAndOtherBenefitPlansDetailsTextual" id="PensionAndOtherBenefitPlansDetailsTextual">
        <link:definition>061810 - Disclosure - Pension and Other Benefit Plans (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/PensionAndOtherBenefitPlansDetails9" id="PensionAndOtherBenefitPlansDetails9">
        <link:definition>061809 - Disclosure - Pension and Other Benefit Plans (Details 9)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/PensionAndOtherBenefitPlansDetails8" id="PensionAndOtherBenefitPlansDetails8">
        <link:definition>061808 - Disclosure - Pension and Other Benefit Plans (Details 8)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/PensionAndOtherBenefitPlansDetails7" id="PensionAndOtherBenefitPlansDetails7">
        <link:definition>061807 - Disclosure - Pension and Other Benefit Plans (Details 7)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/PensionAndOtherBenefitPlansDetails6" id="PensionAndOtherBenefitPlansDetails6">
        <link:definition>061806 - Disclosure - Pension and Other Benefit Plans (Details 6)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/PensionAndOtherBenefitPlansDetails5" id="PensionAndOtherBenefitPlansDetails5">
        <link:definition>061805 - Disclosure - Pension and Other Benefit Plans (Details 5)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/PensionAndOtherPostretirementBenefitsDetails4" id="PensionAndOtherPostretirementBenefitsDetails4">
        <link:definition>061804 - Disclosure - Pension and Other Benefit Plans (Details 4)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/PensionAndOtherPostretirementBenefitsDetails3" id="PensionAndOtherPostretirementBenefitsDetails3">
        <link:definition>061803 - Disclosure - Pension and Other Benefit Plans (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/SupplementaryInformationDetailsTextual" id="SupplementaryInformationDetailsTextual">
        <link:definition>06193 - Disclosure - Supplementary Information (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/SupplementaryInformationDetails2" id="SupplementaryInformationDetails2">
        <link:definition>06192 - Disclosure - Supplementary Information (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/SupplementaryInformationDetails1" id="SupplementaryInformationDetails1">
        <link:definition>06191 - Disclosure - Supplementary Information (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/SupplementaryInformationDetails" id="SupplementaryInformationDetails">
        <link:definition>0619 - Disclosure - Supplementary Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/SupplementaryInformationTables" id="SupplementaryInformationTables">
        <link:definition>0519 - Disclosure - Supplementary Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/SegmentInformationDetails2" id="SegmentInformationDetails2">
        <link:definition>06171 - Disclosure - Segment Information (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/LeasesAndLeaseCommitmentsDetails" id="LeasesAndLeaseCommitmentsDetails">
        <link:definition>0615 - Disclosure - Leases and Lease Commitments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/LeasesAndLeaseCommitmentsTables" id="LeasesAndLeaseCommitmentsTables">
        <link:definition>0515 - Disclosure - Leases and Lease Commitments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/IncomeTaxDetailsTextual" id="IncomeTaxDetailsTextual">
        <link:definition>06146 - Disclosure - Income Tax (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/IncomeTaxDetails5" id="IncomeTaxDetails5">
        <link:definition>06145 - Disclosure - Income Tax (Details 5)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StockCompensationPlansDetailsTextual" id="StockCompensationPlansDetailsTextual">
        <link:definition>06136 - Disclosure - Stock Compensation Plans (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StockCompensationPlansDetails5" id="StockCompensationPlansDetails5">
        <link:definition>06135 - Disclosure - Stock Compensation Plans (Details 5)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StockCompensationPlansDetails4" id="StockCompensationPlansDetails4">
        <link:definition>06134 - Disclosure - Stock Compensation Plans (Details 4)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StockCompensationPlansDetails3" id="StockCompensationPlansDetails3">
        <link:definition>06133 - Disclosure - Stock Compensation Plans (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StockCompensationPlansDetails2" id="StockCompensationPlansDetails2">
        <link:definition>06132 - Disclosure - Stock Compensation Plans (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StockCompensationPlansDetails1" id="StockCompensationPlansDetails1">
        <link:definition>06131 - Disclosure - Stock Compensation Plans (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StockCompensationPlansDetails" id="StockCompensationPlansDetails">
        <link:definition>0613 - Disclosure - Stock Compensation Plans (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StockCompensationPlansTables" id="StockCompensationPlansTables">
        <link:definition>0513 - Disclosure - Stock Compensation Plans (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StockholdersEquityDetails" id="StockholdersEquityDetails">
        <link:definition>0612 - Disclosure - Stockholders' Equity (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StockholdersEquityTables" id="StockholdersEquityTables">
        <link:definition>0512 - Disclosure - Stockholders' Equity (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StatementOfComprehensiveIncome" id="StatementOfComprehensiveIncome">
        <link:definition>0120 - Statement - CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/LongTermDebtAndDebtFacilityAgreementsDetailsTextual" id="LongTermDebtAndDebtFacilityAgreementsDetailsTextual">
        <link:definition>06102 - Disclosure - Long-term Debt and Debt Facility Agreements (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/GoodwillDetails1" id="GoodwillDetails1">
        <link:definition>06081 - Disclosure - Goodwill (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/FixedAssetsDetailsTextual" id="FixedAssetsDetailsTextual">
        <link:definition>06061 - Disclosure - Fixed Assets (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/AcquisitionsDetailsTextual" id="AcquisitionsDetailsTextual">
        <link:definition>06045 - Disclosure - Acquisitions (Details Textual)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/AcquisitionsDetails6" id="AcquisitionsDetails6">
        <link:definition>06041 - Disclosure - Acquisitions (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/AcquisitionsDetails5" id="AcquisitionsDetails5">
        <link:definition>0604 - Disclosure - Acquisitions (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/AcquisitionsDetails2" id="AcquisitionsDetails2">
        <link:definition>06042 - Disclosure - Acquisitions (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/AcquisitionsTables" id="AcquisitionsTables">
        <link:definition>0504 - Disclosure - Acquisitions (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/ChargesAndCreditsDetails2" id="ChargesAndCreditsDetails2">
        <link:definition>06032 - Disclosure - Charges and Credits (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/SummaryOfAccountingPoliciesDetails" id="SummaryOfAccountingPoliciesDetails">
        <link:definition>0602 - Disclosure - Summary of Accounting Policies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/SummaryOfAccountingPoliciesTables" id="SummaryOfAccountingPoliciesTables">
        <link:definition>0502 - Disclosure - Summary of Accounting Policies (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/SummaryOfAccountingPoliciesPolicies" id="SummaryOfAccountingPoliciesPolicies">
        <link:definition>0402 - Disclosure - Summary of Accounting Policies (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/SupplementaryInformation" id="SupplementaryInformation">
        <link:definition>0219 - Disclosure - Supplementary Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/PensionAndOtherBenefitPlans" id="PensionAndOtherBenefitPlans">
        <link:definition>0218 - Disclosure - Pension and Other Benefit Plans</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/LeasesAndLeaseCommitments" id="LeasesAndLeaseCommitments">
        <link:definition>0215 - Disclosure - Leases and Lease Commitments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StockCompensationPlans" id="StockCompensationPlans">
        <link:definition>0213 - Disclosure - Stock Compensation Plans</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StockholdersEquity" id="StockholdersEquity">
        <link:definition>0212 - Disclosure - Stockholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/SummaryOfAccountingPolicies" id="SummaryOfAccountingPolicies">
        <link:definition>0202 - Disclosure - Summary of Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/BusinessDescription" id="BusinessDescription">
        <link:definition>0201 - Disclosure - Business Description</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/ChargesAndCreditsDetails" id="ChargesAndCreditsDetails">
        <link:definition>0603 - Disclosure - Charges and Credits (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/ChargesAndCreditsDetails1" id="ChargesAndCreditsDetails1">
        <link:definition>06031 - Disclosure - Charges and Credits (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/ChargesAndCreditsTables" id="ChargesAndCreditsTables">
        <link:definition>0503 - Disclosure - Charges and Credits (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/ChargesAndCredits" id="ChargesAndCredits">
        <link:definition>0203 - Disclosure - Charges and Credits</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StatementOfIncomeAlternative" id="StatementOfIncomeAlternative">
        <link:definition>0111 - Statement - CONSOLIDATED STATEMENT OF INCOME Alternative</link:definition>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/DerivativeInstrumentsAndHedgingActivitiesDetails3" id="DerivativeInstrumentsAndHedgingActivitiesDetails3">
        <link:definition>06113 - Disclosure - Derivative Instruments and Hedging Activities (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/IncomeTaxDetails4" id="IncomeTaxDetails4">
        <link:definition>06144 - Disclosure - Income Tax (Details 4)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/AcquisitionsDetails1" id="AcquisitionsDetails1">
        <link:definition>06044 - Disclosure - Acquisitions (Details 4)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/PensionAndOtherPostretirementBenefitsDetails1" id="PensionAndOtherPostretirementBenefitsDetails1">
        <link:definition>061801 - Disclosure - Pension and Other Benefit Plans (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/PensionAndOtherPostretirementBenefitsDetails2" id="PensionAndOtherPostretirementBenefitsDetails2">
        <link:definition>061802 - Disclosure - Pension and Other Benefit Plans (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/PensionAndOtherPostretirementBenefitsDetails" id="PensionAndOtherPostretirementBenefitsDetails">
        <link:definition>0618 - Disclosure - Pension and Other Benefit Plans (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/LongTermDebt" id="LongTermDebt">
        <link:definition>0210 - Disclosure - Long-term Debt and Debt Facility Agreements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/IncomeTax" id="IncomeTax">
        <link:definition>0214 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/LongTermDebtAndDebtFacilityAgreementsTables" id="LongTermDebtAndDebtFacilityAgreementsTables">
        <link:definition>0510 - Disclosure - Long-term Debt and Debt Facility Agreements(Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/LongTermDebtAndDebtFacilityAgreementsDetails1" id="LongTermDebtAndDebtFacilityAgreementsDetails1">
        <link:definition>06101 - Disclosure - Long-term Debt and Debt Facility Agreements (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/LongTermDebtAndDebtFacilityAgreementsDetails" id="LongTermDebtAndDebtFacilityAgreementsDetails">
        <link:definition>0610 - Disclosure - Long-term Debt and Debt Facility Agreements (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/InventoryDetails" id="InventoryDetails">
        <link:definition>0605 - Disclosure - Inventory (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/InventoryTables" id="InventoryTables">
        <link:definition>0505 - Disclosure - Inventory (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/SegmentInformation" id="SegmentInformation">
        <link:definition>0217 - Disclosure - Segment Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/Contingencies" id="Contingencies">
        <link:definition>0216 - Disclosure - Contingencies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/DerivativeInstrumentsAndHedgingActivities" id="DerivativeInstrumentsAndHedgingActivities">
        <link:definition>0211 - Disclosure - Derivative Instruments and Hedging Activities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/IntangibleAssets" id="IntangibleAssets">
        <link:definition>0209 - Disclosure - Intangible Assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/Goodwill" id="Goodwill">
        <link:definition>0208 - Disclosure - Goodwill</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/MulticlientSeismicData" id="MulticlientSeismicData">
        <link:definition>0207 - Disclosure - Multiclient Seismic Data</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/FixedAssets" id="FixedAssets">
        <link:definition>0206 - Disclosure - Fixed Assets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/Inventory" id="Inventory">
        <link:definition>0205 - Disclosure - Inventory</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/Acquisitions" id="Acquisitions">
        <link:definition>0204 - Disclosure - Acquisitions</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StatementOfEquityParenthetical" id="StatementOfEquityParenthetical">
        <link:definition>0151 - Statement - CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StatementOfEquity" id="StatementOfEquity">
        <link:definition>0150 - Statement - CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StatementOfCashFlows" id="StatementOfCashFlows">
        <link:definition>0140 - Statement - CONSOLIDATED STATEMENT OF CASH FLOWS</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/BalanceSheetParenthetical" id="BalanceSheetParenthetical">
        <link:definition>0131 - Statement - CONSOLIDATED BALANCE SHEET (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/BalanceSheet" id="BalanceSheet">
        <link:definition>0130 - Statement - CONSOLIDATED BALANCE SHEET</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/StatementOfIncome" id="StatementOfIncome">
        <link:definition>0110 - Statement - CONSOLIDATED STATEMENT OF INCOME</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/DocumentAndEntityInformation" id="DocumentAndEntityInformation">
        <link:definition>00 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/SegmentInformationDetails1" id="SegmentInformationDetails1">
        <link:definition>06172 - Disclosure - Segment Information (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/DerivativeInstrumentsAndHedgingActivitiesDetails2" id="DerivativeInstrumentsAndHedgingActivitiesDetails2">
        <link:definition>06112 - Disclosure - Derivative Instruments and Hedging Activities (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/IntangibleAssetsDetails1" id="IntangibleAssetsDetails1">
        <link:definition>06091 - Disclosure - Intangible Assets (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/FixedAssetsTables" id="FixedAssetsTables">
        <link:definition>0506 - Disclosure - Fixed Assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/SegmentInformationDetails" id="SegmentInformationDetails">
        <link:definition>0617 - Disclosure - Segment Information (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/SegmentInformationTables" id="SegmentInformationTables">
        <link:definition>0517 - Disclosure - Segment Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/IncomeTaxesDetails3" id="IncomeTaxesDetails3">
        <link:definition>06143 - Disclosure - Income Tax (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/IncomeTaxesDetails2" id="IncomeTaxesDetails2">
        <link:definition>06142 - Disclosure - Income Tax (Details 2)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/IncomeTaxesDetails1" id="IncomeTaxesDetails1">
        <link:definition>06141 - Disclosure - Income Tax (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/IncomeTaxesDetails" id="IncomeTaxesDetails">
        <link:definition>0614 - Disclosure - Income Tax (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/IncomeTaxesTables" id="IncomeTaxesTables">
        <link:definition>0514 - Disclosure - Income Tax (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/DerivativeInstrumentsAndHedgingActivitiesTables" id="DerivativeInstrumentsAndHedgingActivitiesTables">
        <link:definition>0511 - Disclosure - Derivative Instruments and Hedging Activities (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/DerivativeInstrumentsAndHedgingActivitiesDetails4" id="DerivativeInstrumentsAndHedgingActivitiesDetails4">
        <link:definition>06114 - Disclosure - Derivative Instruments and Hedging Activities (Details 4)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/DerivativeInstrumentsAndHedgingActivitiesDetails1" id="DerivativeInstrumentsAndHedgingActivitiesDetails1">
        <link:definition>06111 - Disclosure - Derivative Instruments and Hedging Activities (Details 1)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/DerivativeInstrumentsAndHedgingActivitiesDetails" id="DerivativeInstrumentsAndHedgingActivitiesDetails">
        <link:definition>0611 - Disclosure - Derivative Instruments and Hedging Activities (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/IntangibleAssetsTables" id="IntangibleAssetsTables">
        <link:definition>0509 - Disclosure - Intangible Assets (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/IntangibleAssetsDetails" id="IntangibleAssetsDetails">
        <link:definition>0609 - Disclosure - Intangible Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/AcquisitionsDetails" id="AcquisitionsDetails">
        <link:definition>06043 - Disclosure - Acquisitions (Details 3)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/GoodwillDetails" id="GoodwillDetails">
        <link:definition>0608 - Disclosure - Goodwill (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/GoodwillTables" id="GoodwillTables">
        <link:definition>0508 - Disclosure - Goodwill (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/MulticlientSeismicDataDetails" id="MulticlientSeismicDataDetails">
        <link:definition>0607 - Disclosure - Multiclient Seismic Data (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/MulticlientSeismicDataTables" id="MulticlientSeismicDataTables">
        <link:definition>0507 - Disclosure - Multiclient Seismic Data (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType roleURI="http://slb.com/role/FixedAssetsDetails" id="FixedAssetsDetails">
        <link:definition>0606 - Disclosure - Fixed Assets (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:linkbaseRef xlink:type="simple" xlink:href="slb-20111231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Calculation Links, all" />
      <link:linkbaseRef xlink:type="simple" xlink:href="slb-20111231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Presentation Links, all" />
      <link:linkbaseRef xlink:type="simple" xlink:href="slb-20111231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Label Links, all" />
      <link:linkbaseRef xlink:type="simple" xlink:href="slb-20111231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Definition Links, all" />
    </appinfo>
  </annotation>
  <import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <import namespace="http://xbrl.sec.gov/dei/2011-01-31" schemaLocation="http://xbrl.sec.gov/dei/2011/dei-2011-01-31.xsd" />
  <import namespace="http://fasb.org/us-gaap/2011-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd" />
  <import namespace="http://xbrl.sec.gov/country/2011-01-31" schemaLocation="http://xbrl.sec.gov/country/2011/country-2011-01-31.xsd" />
  <import namespace="http://xbrl.sec.gov/currency/2011-01-31" schemaLocation="http://xbrl.sec.gov/currency/2011/currency-2011-01-31.xsd" />
  <element id="slb_AccountsPayableAndAccruedLiabilitiesMember" name="AccountsPayableAndAccruedLiabilitiesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_CorporateAndOtherMember" name="CorporateAndOtherMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DebtOtherMember" name="DebtOtherMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DeferredTaxAssetsIntangibleAssets" name="DeferredTaxAssetsIntangibleAssets" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="slb_DefinedBenefitPlanNetPeriodicBenefitCostBeforeCurtailments" name="DefinedBenefitPlanNetPeriodicBenefitCostBeforeCurtailments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_DerivativesByDerivativeInstrumentContractAxis" name="DerivativesByDerivativeInstrumentContractAxis" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DerivativesByDerivativeInstrumentContractDomain" name="DerivativesByDerivativeInstrumentContractDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ChangeInCarryingAmountOfMulticlientSeismicDataAbstract" name="ChangeInCarryingAmountOfMulticlientSeismicDataAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_SummaryOfOtherLongTermDebtAbstract" name="SummaryOfOtherLongTermDebtAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_FairValueAdjustmentHedgingCarryingAmount" name="FairValueAdjustmentHedgingCarryingAmount" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="slb_FixedRateDebt" name="FixedRateDebt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="slb_FixedRateDebtMember" name="FixedRateDebtMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_FloatingRateDebtMember" name="FloatingRateDebtMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_GuaranteedNotesThreePointZeroZeroPercentDueTwoThousandThirteenMember" name="GuaranteedNotesThreePointZeroZeroPercentDueTwoThousandThirteenMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_GuaranteedNotesFivePointTwoFivePercentDueTwoThousandThirteenMember" name="GuaranteedNotesFivePointTwoFivePercentDueTwoThousandThirteenMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_IncomeLossFromContinuingOperationsBeforeIncomeTaxesAndMinorityInterest" name="IncomeLossFromContinuingOperationsBeforeIncomeTaxesAndMinorityInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_IntangibleAssetsByMajorClassAxis" name="IntangibleAssetsByMajorClassAxis" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" />
  <element id="slb_IntangibleAssetsGrossExcludingGoodwill" name="IntangibleAssetsGrossExcludingGoodwill" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="slb_IntangibleAssetsMajorClassNameDomain" name="IntangibleAssetsMajorClassNameDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_InterestIncomeAndOther" name="InterestIncomeAndOther" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_MedicarePartDSubsidyMember" name="MedicarePartDSubsidyMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element name="MulticlientSeismicData" id="slb_MulticlientSeismicData" type="xbrli:monetaryItemType" abstract="false" xbrli:periodType="instant" xbrli:balance="debit" nillable="true" substitutionGroup="xbrli:item" />
  <element id="slb_MulticlientSeismicDataChargedToCostOfGoodsSoldAndServices" name="MulticlientSeismicDataChargedToCostOfGoodsSoldAndServices" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element name="MulticlientSeismicDataTextBlock" id="slb_MulticlientSeismicDataTextBlock" type="nonnum:textBlockItemType" abstract="false" xbrli:periodType="duration" nillable="true" substitutionGroup="xbrli:item" />
  <element id="slb_OilfieldServicesMember" name="OilfieldServicesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_OtherCurrentAssetsMember" name="OtherCurrentAssetsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_VariableRateDebt" name="VariableRateDebt" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="slb_PaymentsForProceedsFromCapitalizedCostsSupportEquipmentAndFacilities" name="PaymentsForProceedsFromCapitalizedCostsSupportEquipmentAndFacilities" nillable="true" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_MulticlientSeismicDataCapitalizedInPeriod" name="MulticlientSeismicDataCapitalizedInPeriod" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_ChargesAndCreditsMember" name="ChargesAndCreditsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DistributionMember" name="DistributionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_SeniorNotesSixPointZeroZeroDueTwoThousandSixteenMember" name="SeniorNotesSixPointZeroZeroDueTwoThousandSixteenMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_SeniorNotesNinePointSevenFiveDueTwoThousandNineteenMember" name="SeniorNotesNinePointSevenFiveDueTwoThousandNineteenMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_SeniorNotesEightPointSixTwoFiveDueTwoThousandFourteenMember" name="SeniorNotesEightPointSixTwoFiveDueTwoThousandFourteenMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ScheduleOfIntangibleAssetsByMajorClassTable" name="ScheduleOfIntangibleAssetsByMajorClassTable" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" nillable="true" xbrli:periodType="duration" />
  <element id="slb_IntangibleAssetsLineItems" name="IntangibleAssetsLineItems" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_SegmentInformationTextualAbstract" name="SegmentInformationTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_IntangibleAssetsAdditionalInformationAbstract" name="IntangibleAssetsAdditionalInformationAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_NumberOfCountriesInWhichCompanyConductsBusiness" name="NumberOfCountriesInWhichCompanyConductsBusiness" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DerivativeInstrumentsAndHedgingActivitiesTextualAbstract" name="DerivativeInstrumentsAndHedgingActivitiesTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_LongTermDebtTextualAbstract" name="LongTermDebtTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_MulticlientSeismicDataAbstract" name="MulticlientSeismicDataAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DisclosureNetPensionCostForParentCompanyPensionPlansAbstract" name="DisclosureNetPensionCostForParentCompanyPensionPlansAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_MergerRelatedTransactionCostsMember" name="MergerRelatedTransactionCostsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_GuaranteedNotesFourPointFiveZeroPercentDueTwoThousandFourteenMember" name="GuaranteedNotesFourPointFiveZeroPercentDueTwoThousandFourteenMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_GuaranteedNotesTwoPointSevenFivePercentDueTwoThousandFifteenMember" name="GuaranteedNotesTwoPointSevenFivePercentDueTwoThousandFifteenMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ReservoirCharacterizationMember" name="ReservoirCharacterizationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ReservoirProductionMember" name="ReservoirProductionMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DrillingMember" name="DrillingMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_OtherServicesMember" name="OtherServicesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_BusinessAcquisitionCostOfAcquiredEntitySharesDistributed" name="BusinessAcquisitionCostOfAcquiredEntitySharesDistributed" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="slb_GeoservicesMember" name="GeoservicesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_SmithInternationalIncorporateMember" name="SmithInternationalIncorporateMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_GuaranteedNotesTwoPointSixtyFiveZeroPercentDueTwoThousandSixteenMember" name="GuaranteedNotesTwoPointSixtyFiveZeroPercentDueTwoThousandSixteenMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_LongTermDebtAdditionalTextualAbstract" name="LongTermDebtAdditionalTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_RepurchasedOutstandingSeniorNotesDue" name="RepurchasedOutstandingSeniorNotesDue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_SummaryOfChargesTableTextBlock" name="SummaryOfChargesTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_MulticlientSeismicDataTableTextBlock" name="MulticlientSeismicDataTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_GoodwillAbstract" name="GoodwillAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_IncomeTaxTextualAbstract" name="IncomeTaxTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DonationToParentFoundationMember" name="DonationToParentFoundationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ComponentsOfDeferredIncomeTaxes" name="ComponentsOfDeferredIncomeTaxes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_GuaranteedNotesFourPointTwoZeroZeroPercentDueTwoThousandTwentyOneMember" name="GuaranteedNotesFourPointTwoZeroZeroPercentDueTwoThousandTwentyOneMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_GainLossOnInvestmentsNetOfTax" name="GainLossOnInvestmentsNetOfTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_ScheduleOfMergerRelatedChargesTableTextBlock" name="ScheduleOfMergerRelatedChargesTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_WesterngecoFirstGenerationLandOperationMember" name="WesterngecoFirstGenerationLandOperationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_OtherChargesOnRestructuringMember" name="OtherChargesOnRestructuringMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_MexicoRestructuringChargesMember" name="MexicoRestructuringChargesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_RepurchaseOfBondsMember" name="RepurchaseOfBondsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_MergerRelatedEmployeeBenefitsMember" name="MergerRelatedEmployeeBenefitsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_InventoryFairValueAdjustmentsMember" name="InventoryFairValueAdjustmentsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_MISwacoMember" name="MISwacoMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_SummaryOfChargesAndCreditTextualAbstract" name="SummaryOfChargesAndCreditTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ImpairmentCharges" name="ImpairmentCharges" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_RepurchaseSeniorNotes" name="RepurchaseSeniorNotes" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_GeneralAndAdministrativeMember" name="GeneralAndAdministrativeMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_RestructuringChargesTax" name="RestructuringChargesTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_Charges" name="Charges" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_RestructuringChargesPretax" name="RestructuringChargesPretax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_ThreePointThreeZeroPercentSeniorNotesDueTwoThousandTwentyOneMember" name="ThreePointThreeZeroPercentSeniorNotesDueTwoThousandTwentyOneMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_OnePointNineFivePercentSeniorNotesDueTwoThousandSixteenMember" name="OnePointNineFivePercentSeniorNotesDueTwoThousandSixteenMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_FloatingRateSeniorNotesDueTwoThousandFourteenMember" name="FloatingRateSeniorNotesDueTwoThousandFourteenMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_FaceAmountOfDebtInstrument" name="FaceAmountOfDebtInstrument" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_BasisPointOverLibor" name="BasisPointOverLibor" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_CommercialPaperProgramsMaturingJulyTwoZeroOneSixMember" name="CommercialPaperProgramsMaturingJulyTwoZeroOneSixMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_WesterngecoElectromagneticServiceMember" name="WesterngecoElectromagneticServiceMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ReclassificationsPolicyTextBlock" name="ReclassificationsPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_MulticlientSeismicDataPolicyTextBlock" name="MulticlientSeismicDataPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ConcentrationOfCreditRiskPolicyTextBlock" name="ConcentrationOfCreditRiskPolicyTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_TransactionGainsNetOfHedgingActivities" name="TransactionGainsNetOfHedgingActivities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_SummaryOfAccountingPoliciesTextualAbstract" name="SummaryOfAccountingPoliciesTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_EmployeeStockOptionsToPurchase" name="EmployeeStockOptionsToPurchase" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="slb_WriteOffOfAssetsInLibyaMember" name="WriteOffOfAssetsInLibyaMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_SixPointFiveZeroPercentNotesDueTwoThousandTwelveMember" name="SixPointFiveZeroPercentNotesDueTwoThousandTwelveMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_SixPointSevenFivePercentSeniorNotesDueTwoThousandElevenMember" name="SixPointSevenFivePercentSeniorNotesDueTwoThousandElevenMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_NinePointSevenFivePercentSeniorNotesDueTwoThousandNineteenMember" name="NinePointSevenFivePercentSeniorNotesDueTwoThousandNineteenMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_SixPointZeroZeroPercentSeniorNotesDueTwoThousandSixteenMember" name="SixPointZeroZeroPercentSeniorNotesDueTwoThousandSixteenMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_EightPointSixTwoFivePercentSeniorNotesDueTwoThousandFourteenMember" name="EightPointSixTwoFivePercentSeniorNotesDueTwoThousandFourteenMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_RepurchaseOfDebtTableTextBlock" name="RepurchaseOfDebtTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_RepurchaseOfDebtAbstract" name="RepurchaseOfDebtAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_UnvestedRestrictedStockUnitsOutstanding" name="UnvestedRestrictedStockUnitsOutstanding" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="slb_ExchangeRatio" name="ExchangeRatio" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="slb_BusinessAcquisitionCostOfAcquiredEntityShareDistributed" name="BusinessAcquisitionCostOfAcquiredEntityShareDistributed" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="slb_StockPricePerShare" name="StockPricePerShare" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="slb_FairValueOfEquivalentStockOptionsIssued" name="FairValueOfEquivalentStockOptionsIssued" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="slb_BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesAccountsPayableAndAccruedLiabilities" name="BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesAccountsPayableAndAccruedLiabilities" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="slb_BusinessAcquisitionPurchasePriceAllocationInvestment" name="BusinessAcquisitionPurchasePriceAllocationInvestment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="slb_BusinessAcquisitionPurchasePriceAllocationNoncontrollingInterest" name="BusinessAcquisitionPurchasePriceAllocationNoncontrollingInterest" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="slb_GainOnInvestment" name="GainOnInvestment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="slb_DisclosureFairValueOfConsiderationTransferredToEffectMergerAbstract" name="DisclosureFairValueOfConsiderationTransferredToEffectMergerAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ScheduleOfFairValueOfConsiderationTransferredToEffectMergerTableTextBlock" name="ScheduleOfFairValueOfConsiderationTransferredToEffectMergerTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_BusinessCombinationPreliminaryAllocationOfPurchasePriceDisclosureTableTextBlock" name="BusinessCombinationPreliminaryAllocationOfPurchasePriceDisclosureTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DisclosurePreliminaryEstimatesOfFairValueOfIdentifiableAssetsAcquiredAndLiabilitiesAssumedAbstract" name="DisclosurePreliminaryEstimatesOfFairValueOfIdentifiableAssetsAcquiredAndLiabilitiesAssumedAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_BusinessAcquisitionPurchasePriceAllocation" name="BusinessAcquisitionPurchasePriceAllocation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="slb_DisclosurePurchasePriceAllocatedToNetAssetsAcquiredUponEstimatedFairValuesAbstract" name="DisclosurePurchasePriceAllocatedToNetAssetsAcquiredUponEstimatedFairValuesAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_AcquisitionsTextualAbstract" name="AcquisitionsTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_BusinessAcquisitionCostOfAcquiredEntityStockPerShare" name="BusinessAcquisitionCostOfAcquiredEntityStockPerShare" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="slb_BusinessAcquisitionsProFormaProfitLoss" name="BusinessAcquisitionsProFormaProfitLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_InventoryWriteUp" name="InventoryWriteUp" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_IncreaseDecreaseInNotesPayable" name="IncreaseDecreaseInNotesPayable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_OwnershipInterestInJointVenture" name="OwnershipInterestInJointVenture" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_GainOnEarningsOnEquityInterestInJointVenturePretax" name="GainOnEarningsOnEquityInterestInJointVenturePretax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_GainOnEarningsOnEquityInterestInJointVentureAfterTax" name="GainOnEarningsOnEquityInterestInJointVentureAfterTax" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_IntangibleAssetsEstimatedUsefulLife" name="IntangibleAssetsEstimatedUsefulLife" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="slb_SeismicVesselsAndRelatedEquipment" name="SeismicVesselsAndRelatedEquipment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="slb_FixedAssetsTextualAbstract" name="FixedAssetsTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_SeismicVesselsMember" name="SeismicVesselsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ChangesInCarryingAmountOfGoodwillAbstract" name="ChangesInCarryingAmountOfGoodwillAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ChangesInCarryingAmountOfGoodwillTableTextBlock" name="ChangesInCarryingAmountOfGoodwillTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_AcquisitionOfMerger" name="AcquisitionOfMerger" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_CurrencyAxis" name="CurrencyAxis" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" nillable="true" xbrli:periodType="duration" />
  <element id="slb_CurrencyDomain" name="CurrencyDomain" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_UnitedStatesDollarMember" name="UnitedStatesDollarMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_EuroMember" name="EuroMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_PoundSterlingMember" name="PoundSterlingMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_NorwegianKronerMember" name="NorwegianKronerMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_OtherCurrencyMember" name="OtherCurrencyMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_BondsAndNotesMember" name="BondsAndNotesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DisclosureSummaryOfOtherLongTermDebtByCurrencyAbstract" name="DisclosureSummaryOfOtherLongTermDebtByCurrencyAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_SummaryOfOtherLongTermDebtByCurrencyTableTextBlock" name="SummaryOfOtherLongTermDebtByCurrencyTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_PriorServiceCostAbstract" name="PriorServiceCostAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ActuarialLossAbstract" name="ActuarialLossAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_EuroMediumTermNoteProgramMember" name="EuroMediumTermNoteProgramMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_WeightedAverageInterestRateOnVariableRateDebt" name="WeightedAverageInterestRateOnVariableRateDebt" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="slb_SeriesBConvertibleDebenturesTwoPointOneTwoFivePercentDueJuneFirstTwoThousandTwentyThreeMember" name="SeriesBConvertibleDebenturesTwoPointOneTwoFivePercentDueJuneFirstTwoThousandTwentyThreeMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DebtInstrumentConvertibleNumberOfEquityInstrument" name="DebtInstrumentConvertibleNumberOfEquityInstrument" type="xbrli:decimalItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_PrincipalAmountOfConvertibleDebenturesToBeUsedForConversionRate" name="PrincipalAmountOfConvertibleDebenturesToBeUsedForConversionRate" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ConversionOfConvertibleDebenturesIntoCommonStockValue" name="ConversionOfConvertibleDebenturesIntoCommonStockValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_ConversionOfConvertibleDebenturesIntoCommonStockShares" name="ConversionOfConvertibleDebenturesIntoCommonStockShares" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ConversionOfConvertibleDebenturesIntoCashValue" name="ConversionOfConvertibleDebenturesIntoCashValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_RepurchaseOfInterestRateDerivative" name="RepurchaseOfInterestRateDerivative" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_StockholdersEquityTextualAbstract" name="StockholdersEquityTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_OptionsOutstandingAndOptionExercisableAbstract" name="OptionsOutstandingAndOptionExercisableAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ExercisePricesRangeOneMember" name="ExercisePricesRangeOneMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ExercisePricesRangeTwoMember" name="ExercisePricesRangeTwoMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ExercisePricesRangeThreeMember" name="ExercisePricesRangeThreeMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ExercisePricesRangeFourMember" name="ExercisePricesRangeFourMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ExercisePricesRangeFiveMember" name="ExercisePricesRangeFiveMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_StockOptionActivityAbstract" name="StockOptionActivityAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionGrantsInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionGrantsInPeriodWeightedAverageExercisePrice" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_AssumedInMergerTransaction" name="AssumedInMergerTransaction" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_AssumedInMergerTransactionWeightedAverageExercisePrice" name="AssumedInMergerTransactionWeightedAverageExercisePrice" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisesInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionExercisesInPeriodWeightedAverageExercisePrice" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionForfeituresInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionForfeituresInPeriodWeightedAverageExercisePrice" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_RestrictedStockTransactionsAbstract" name="RestrictedStockTransactionsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionForfeitedInPeriodWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionForfeitedInPeriodWeightedAverageGrantDateFairValue" type="num:perShareItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DiscountedStockPurchasePlanMember" name="DiscountedStockPurchasePlanMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DiscountedStockPurchasePlanAssumptionsAndResultingWeightedAverageFairValueAbstract" name="DiscountedStockPurchasePlanAssumptionsAndResultingWeightedAverageFairValueAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ScheduleOfChargesRelatedToWorkforceReductionsTableTextBlock" name="ScheduleOfChargesRelatedToWorkforceReductionsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_MergerAndIntegrationMember" name="MergerAndIntegrationMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_StockBasedCompensationTextualAbstract" name="StockBasedCompensationTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_StockOptionMaximumTerm" name="StockOptionMaximumTerm" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_AggregateIntrinsicValueOfStockOptionsExercisable" name="AggregateIntrinsicValueOfStockOptionsExercisable" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="slb_ShareBasedCompensationArrangementByShareBasedPaymentsAwardVestingPeriod" name="ShareBasedCompensationArrangementByShareBasedPaymentsAwardVestingPeriod" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_AdditionalStockBasedCompensationTextualAbstract" name="AdditionalStockBasedCompensationTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwardsExpectedToBeRecognizedInYearOne" name="EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwardsExpectedToBeRecognizedInYearOne" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwardsExpectedToBeRecognizedInYearTwo" name="EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwardsExpectedToBeRecognizedInYearTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwardsExpectedToBeRecognizedInYearThree" name="EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwardsExpectedToBeRecognizedInYearThree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwardsExpectedToBeRecognizedInYearFour" name="EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwardsExpectedToBeRecognizedInYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwardsExpectedToBeRecognizedInYearFive" name="EmployeeServiceShareBasedCompensationUnrecognizedCompensationCostsOnNonvestedAwardsExpectedToBeRecognizedInYearFive" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_DiscountedStockPurchasePlanAssumptionsAndResultingWeightedAverageFairValueTableTextBlock" name="DiscountedStockPurchasePlanAssumptionsAndResultingWeightedAverageFairValueTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_UnrecognizedTaxBenefitsIncreasesResultingFromAcquisitions" name="UnrecognizedTaxBenefitsIncreasesResultingFromAcquisitions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_UnrecognizedTaxBenefitsIncreasesResultingFromImpactOfChangesInExchangeRates" name="UnrecognizedTaxBenefitsIncreasesResultingFromImpactOfChangesInExchangeRates" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_IncomeTaxExaminationAbstract" name="IncomeTaxExaminationAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_RussiaMember" name="RussiaMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_IncomeTaxAdditionalTextualAbstract" name="IncomeTaxAdditionalTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_MinimumNumberOfJurisdictionsToCompanyOperates" name="MinimumNumberOfJurisdictionsToCompanyOperates" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_LeasesAndLeaseCommitmentsTextualAbstract" name="LeasesAndLeaseCommitmentsTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_GoodwillAndIntangibleAssetsMember" name="GoodwillAndIntangibleAssetsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_AllOtherAssetsMember" name="AllOtherAssetsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_Asset" name="Asset" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_IncreaseInGoodwillOnFinalAllocation" name="IncreaseInGoodwillOnFinalAllocation" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="slb_NorthAmericaMember" name="NorthAmericaMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_LatinAmericaMember" name="LatinAmericaMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_EuropeCisAfricaMember" name="EuropeCisAfricaMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_MiddleEastAndAsiaMember" name="MiddleEastAndAsiaMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_SeismicVesselsAndOnBoardEquipment" name="SeismicVesselsAndOnBoardEquipment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="slb_UnallocatedMember" name="UnallocatedMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_EntityWideDisclosureOnGeographicAreasPercentageOfDistributionRevenueAttributedToEntitysCountryOfDomicile" name="EntityWideDisclosureOnGeographicAreasPercentageOfDistributionRevenueAttributedToEntitysCountryOfDomicile" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_RevenueAttributedToEntitysCountryOfDomicile" name="RevenueAttributedToEntitysCountryOfDomicile" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_SegmentReportingInformationBySegmentAbstract" name="SegmentReportingInformationBySegmentAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_MaximumPercentageOfConsolidatedRevenueCustomers" name="MaximumPercentageOfConsolidatedRevenueCustomers" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_CashPaidForInterestAndIncomeTaxesTableTextBlock" name="CashPaidForInterestAndIncomeTaxesTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_AllowanceForDoubtfulAccountsTableTextBlock" name="AllowanceForDoubtfulAccountsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_InterestAndOtherIncomeNetTableTextBlock" name="InterestAndOtherIncomeNetTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_AccountsPayableAndAccruedLiabilitiesOther" name="AccountsPayableAndAccruedLiabilitiesOther" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" />
  <element id="slb_OthersMember" name="OthersMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_InterestAndOtherIncomeNetAbstract" name="InterestAndOtherIncomeNetAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_EquityInNetEarningsOfAffiliatedCompaniesAbstract" name="EquityInNetEarningsOfAffiliatedCompaniesAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_InterestAndOtherIncomeOther" name="InterestAndOtherIncomeOther" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_AllowanceForDoubtfulAccountsAbstract" name="AllowanceForDoubtfulAccountsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_AllowanceForDoubtfulAccountsAmountsWrittenOff" name="AllowanceForDoubtfulAccountsAmountsWrittenOff" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_EquityInNetEarningsOfAffiliatedCompanies" name="EquityInNetEarningsOfAffiliatedCompanies" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_ChargeContingencyRecognizedInCurrentPeriod" name="ChargeContingencyRecognizedInCurrentPeriod" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
  <element id="slb_SupplementaryInformationTextualAbstract" name="SupplementaryInformationTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationTableTextBlock" name="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ChangesInProjectedBenefitObligationPlanAssetsAndFundedStatusOfPlansTableTextBlock" name="ChangesInProjectedBenefitObligationPlanAssetsAndFundedStatusOfPlansTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ChangesInProjectedBenefitObligationPlanAssetsAndFundedStatusOfPlansAbstract" name="ChangesInProjectedBenefitObligationPlanAssetsAndFundedStatusOfPlansAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DefinedBenefitPlanOther" name="DefinedBenefitPlanOther" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_DefinedBenefitPlanCashAndCashEquivalents" name="DefinedBenefitPlanCashAndCashEquivalents" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="slb_DefinedBenefitPlanTargetAllocationPercentageOfAssets" name="DefinedBenefitPlanTargetAllocationPercentageOfAssets" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_FairValueOfPensionPlanAssetsTableTextBlock" name="FairValueOfPensionPlanAssetsTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_FairValuePensionPlanAssetsAbstract" name="FairValuePensionPlanAssetsAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ForeignEquitySecuritiesMember" name="ForeignEquitySecuritiesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_UnitedStatesEquitySecuritiesMember" name="UnitedStatesEquitySecuritiesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ActuarialAssumptionsUsedToDetermineAccumulatedPostretirementBenefitObligationAndNetPeriodicBenefitCostForDomesticPostretirementMedicalPlanAbstract" name="ActuarialAssumptionsUsedToDetermineAccumulatedPostretirementBenefitObligationAndNetPeriodicBenefitCostForDomesticPostretirementMedicalPlanAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DefinedBenefitPlanHealthCareCostTrendRateCurrentYear" name="DefinedBenefitPlanHealthCareCostTrendRateCurrentYear" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostForPostretirementMedicalPlanTableTextBlock" name="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAndNetPeriodicBenefitCostForPostretirementMedicalPlanTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DisclosureNetPeriodicBenefitCostForParentCompanyDomesticPostretirementMedicalPlanAbstract" name="DisclosureNetPeriodicBenefitCostForParentCompanyDomesticPostretirementMedicalPlanAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_ChangesInAccumulatedPostretirementBenefitObligationPlanAssetsAndFundedStatusTableTextBlock" name="ChangesInAccumulatedPostretirementBenefitObligationPlanAssetsAndFundedStatusTableTextBlock" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_PensionAndOtherBenefitPlansTextualAbstract" name="PensionAndOtherBenefitPlansTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_PensionAndOtherBenefitPlansAdditionalTextualAbstract" name="PensionAndOtherBenefitPlansAdditionalTextualAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_FrequencyOfAssetPerformanceMonitoredYears" name="FrequencyOfAssetPerformanceMonitoredYears" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_RangeOfAnnualMedicarePartDSubsidy" name="RangeOfAnnualMedicarePartDSubsidy" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_CurrencyTranslationAdjustmentsMember" name="CurrencyTranslationAdjustmentsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_FairValueOfDerivativesMember" name="FairValueOfDerivativesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DeferredEmployeeBenefitsLiabilitiesMember" name="DeferredEmployeeBenefitsLiabilitiesMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_NotionalAmountOfForeignCurrencyDerivativesDenominatedInCurrenciesOtherThanFunctionalCurrency" name="NotionalAmountOfForeignCurrencyDerivativesDenominatedInCurrenciesOtherThanFunctionalCurrency" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" />
  <element id="slb_PercentageOfRevenueDenominatedInDomesticCurrency" name="PercentageOfRevenueDenominatedInDomesticCurrency" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_NotesSixPointFiveZeroPercentDueTwoThousandTwelveMember" name="NotesSixPointFiveZeroPercentDueTwoThousandTwelveMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_IncomeFromContinuingOperationsBeforeTaxesWhichWereSubjectToDomesticAndForeignCountriesIncomeTaxesAbstract" name="IncomeFromContinuingOperationsBeforeTaxesWhichWereSubjectToDomesticAndForeignCountriesIncomeTaxesAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomesticCountry" name="IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomesticCountry" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeignCountry" name="IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeignCountry" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_EffectiveIncomeTaxRateReconciliationAtDomesticFederalStatutoryIncomeTaxRate" name="EffectiveIncomeTaxRateReconciliationAtDomesticFederalStatutoryIncomeTaxRate" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DisclosureNetPeriodicBenefitsCostForParentCompanyDomesticPostretirementMedicalPlanAbstract" name="DisclosureNetPeriodicBenefitsCostForParentCompanyDomesticPostretirementMedicalPlanAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_PercentagePurchasePriceOfStockLowerOfStockPriceAtBeginningOrEndOfPlanPeriodAtSpecifiedIntervals" name="PercentagePurchasePriceOfStockLowerOfStockPriceAtBeginningOrEndOfPlanPeriodAtSpecifiedIntervals" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_UnallocatedAdministrativeCostsToSegmentAndOtherOperationsAndOtherCostsAndIncomeItems" name="UnallocatedAdministrativeCostsToSegmentAndOtherOperationsAndOtherCostsAndIncomeItems" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" />
  <element id="slb_HeldToMaturitySecuritiesDebtMaturitiesInThreeYearsNetCarryingAmount" name="HeldToMaturitySecuritiesDebtMaturitiesInThreeYearsNetCarryingAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="slb_HeldToMaturitySecuritiesDebtMaturitiesInFourYearsNetCarryingAmount" name="HeldToMaturitySecuritiesDebtMaturitiesInFourYearsNetCarryingAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="slb_HeldToMaturitySecuritiesDebtMaturitiesInFiveYearsNetCarryingAmount" name="HeldToMaturitySecuritiesDebtMaturitiesInFiveYearsNetCarryingAmount" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <element id="slb_LessAbstract" name="LessAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_CommercialPaperProgramsMaturingDecemberTwoZeroOneTwoMember" name="CommercialPaperProgramsMaturingDecemberTwoZeroOneTwoMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DistributionNetOfEliminationsMember" name="DistributionNetOfEliminationsMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DefinedBenefitPlanTargetAllocationPercentageOfCashAndCashEquivalentsRangeMinimum" name="DefinedBenefitPlanTargetAllocationPercentageOfCashAndCashEquivalentsRangeMinimum" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_DefinedBenefitPlanTargetAllocationPercentageOfCashAndCashEquivalentsRangeMaximum" name="DefinedBenefitPlanTargetAllocationPercentageOfCashAndCashEquivalentsRangeMaximum" type="num:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_IntangibleAssetAbstract" name="IntangibleAssetAbstract" abstract="true" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <element id="slb_OtherAcquisitions" name="OtherAcquisitions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" />
</schema>
</XBRL>
