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        <link:definition>2309301 - Disclosure - Warranties (Tables)</link:definition>
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    </xsd:appinfo>
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  <xsd:element id="teso_AccruedPayrollAndBenefits" name="AccruedPayrollAndBenefits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="teso_AccruedTaxesOtherThanIncomeTaxesCurrent" name="AccruedTaxesOtherThanIncomeTaxesCurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="teso_AllowanceforDoubtfulAccountsReceivableAmountInvoluntarilyHeldbyThirdPartyAgent" name="AllowanceforDoubtfulAccountsReceivableAmountInvoluntarilyHeldbyThirdPartyAgent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="teso_BusinessAcquisitionLongTermDebtAssumed" name="BusinessAcquisitionLongTermDebtAssumed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="teso_CasingDrillingMember" name="CasingDrillingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_CurrentAndNonCurrentPortionOfLongTermDebtAndCapitalLeaseObligationsAssumed" name="CurrentAndNonCurrentPortionOfLongTermDebtAndCapitalLeaseObligationsAssumed" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="teso_DeferredIncomeTaxes" name="DeferredIncomeTaxes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="teso_DeferredJobCosts" name="DeferredJobCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="teso_DepositsPrepaid" name="DepositsPrepaid" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="teso_DepreciationAndAmortizationExpenseTableTextBlock" name="DepreciationAndAmortizationExpenseTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_DetailsOfCertainAccountsAbstract" name="DetailsOfCertainAccountsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_DisposalGroupIncludingDiscontinuedOperationDisposalPrice" name="DisposalGroupIncludingDiscontinuedOperationDisposalPrice" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="teso_DocumentEntityInformationAbstract" name="DocumentEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_DrillingEquipmentMember" name="DrillingEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_EuropeAfricaAndMiddleEastMember" name="EuropeAfricaAndMiddleEastMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisLiabilityFairValueAdjustments" name="FairValueMeasurementwithUnobservableInputsReconciliationRecurringBasisLiabilityFairValueAdjustments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="teso_InventoryReclassificationofFinishedGoodstoRawMaterials" name="InventoryReclassificationofFinishedGoodstoRawMaterials" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_LandBuildingsAndLeaseholdsMember" name="LandBuildingsAndLeaseholdsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_LegalSettlementPercentageOfTotalWorldwideTopDriveRequirementsToBePurchasedForSpecifiedPeriod" name="LegalSettlementPercentageOfTotalWorldwideTopDriveRequirementsToBePurchasedForSpecifiedPeriod" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_LegalSettlementSpecifiedPeriodOfPurchaseAgreement" name="LegalSettlementSpecifiedPeriodOfPurchaseAgreement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_LegalSuitUsDistrictCourtForEasternDistrictOfTexasMarshallDivisionMember" name="LegalSuitUsDistrictCourtForEasternDistrictOfTexasMarshallDivisionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_LegalSuitUsDistrictCourtForSouthernDistrictOfTexasMember" name="LegalSuitUsDistrictCourtForSouthernDistrictOfTexasMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_LineOfCreditFacilityLetterOfCreditFeePercentage" name="LineOfCreditFacilityLetterOfCreditFeePercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_LineOfCreditFacilityMaximumBorrowingCapacityReducedByLettersOfCredit" name="LineOfCreditFacilityMaximumBorrowingCapacityReducedByLettersOfCredit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="teso_LineOfCreditFacilitySwingLineLoansCurrentBorrowingCapacity" name="LineOfCreditFacilitySwingLineLoansCurrentBorrowingCapacity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="teso_LineOfCreditFacilityTerm" name="LineOfCreditFacilityTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_LossContingencyMaximumRatioOfClaimsToCurrentAssets" name="LossContingencyMaximumRatioOfClaimsToCurrentAssets" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="teso_ManufacturingEquipmentMember" name="ManufacturingEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_MonetaryInvestmentsinGeographicalLocation" name="MonetaryInvestmentsinGeographicalLocation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="teso_NetBookValueOfUsedTopDrivesSoldFromRentalFleet" name="NetBookValueOfUsedTopDrivesSoldFromRentalFleet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
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  <xsd:element id="teso_NumberOfAllegedPatentInfringementsDefendant" name="NumberOfAllegedPatentInfringementsDefendant" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="teso_OfficeEquipmentAndOtherMember" name="OfficeEquipmentAndOtherMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_OtherContingenciesMaximumExposureUnderOutstandingLettersOfCredit" name="OtherContingenciesMaximumExposureUnderOutstandingLettersOfCredit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="teso_PercentageImpactOnEffectiveTaxRate" name="PercentageImpactOnEffectiveTaxRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_PremiereMember" name="PremiereMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_PrepaidTaxesOtherThanIncome" name="PrepaidTaxesOtherThanIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="teso_ResearchEngineeringMember" name="ResearchEngineeringMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_SaleOfOperatingAssetsPolicyTextBlock" name="SaleOfOperatingAssetsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_ScheduleOfPrepaidAndOtherCurrentAssetsTableTextBlock" name="ScheduleOfPrepaidAndOtherCurrentAssetsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_SchlumbergerMember" name="SchlumbergerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="teso_SellingGeneralAndAdministrativeExpenseDepreciationAndAmortization" name="SellingGeneralAndAdministrativeExpenseDepreciationAndAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_TechFieldServicesInc.Member" name="TechFieldServicesInc.Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_TopDriveMember" name="TopDriveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="teso_TubularServicesMember" name="TubularServicesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>


