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  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://fasb.org/us-roles/2026" schemaLocation="https://xbrl.fasb.org/us-gaap/2026/elts/us-roles-2026.xsd" />
  <xsd:import namespace="http://fasb.org/us-gaap/2026" schemaLocation="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd" />
  <xsd:import namespace="http://fasb.org/srt/2026" schemaLocation="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2026" schemaLocation="https://xbrl.sec.gov/stpr/2026/stpr-2026.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/ecd-sub/2026" schemaLocation="https://xbrl.sec.gov/ecd/2026/ecd-sub-2026.xsd" />
  <xsd:element name="WeightedAverageNumberOfSharesOutstandingBasicAndDilutedAbstract" id="dwsn_WeightedAverageNumberOfSharesOutstandingBasicAndDilutedAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DisclosureOnGeographicAreasDescriptionOfRevenueFromExternalCustomersAndLongLivedAssets" id="dwsn_DisclosureOnGeographicAreasDescriptionOfRevenueFromExternalCustomersAndLongLivedAssets" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FinancedInsurancePremium" id="dwsn_FinancedInsurancePremium" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="NumberOfOutstandingNotesPayable" id="dwsn_NumberOfOutstandingNotesPayable" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="NumberOfLettersOfCredit" id="dwsn_NumberOfLettersOfCredit" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" />
  <xsd:element name="NotesPayableToFinanceCompaniesForInsuranceNotesMember" id="dwsn_NotesPayableToFinanceCompaniesForInsuranceNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="NonCashOperatingLeaseCosts" id="dwsn_NonCashOperatingLeaseCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element name="ScheduleOfMaturitiesOfFinanceLeasesNetOfImputedInterestTableTextBlock" id="dwsn_ScheduleOfMaturitiesOfFinanceLeasesNetOfImputedInterestTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="LeaseDisclosureTextBlock" id="dwsn_LeaseDisclosureTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="FinanceLeaseLiabilityNetOfImputedInterestPaymentsDueInNextRollingTwelveMonths" id="dwsn_FinanceLeaseLiabilityNetOfImputedInterestPaymentsDueInNextRollingTwelveMonths" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="FinanceLeaseLiabilityNetOfImputedInterestPaymentsDueInRollingYearTwo" id="dwsn_FinanceLeaseLiabilityNetOfImputedInterestPaymentsDueInRollingYearTwo" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="FinanceLeaseLiabilityNetOfImputedInterestPaymentsDueInRollingYearThree" id="dwsn_FinanceLeaseLiabilityNetOfImputedInterestPaymentsDueInRollingYearThree" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="FinanceLeaseLiabilityNetOfImputedInterestPaymentsDueInRollingYearFour" id="dwsn_FinanceLeaseLiabilityNetOfImputedInterestPaymentsDueInRollingYearFour" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element name="ThresholdPeriodPastDueForAllowanceForDoubtfulAccountsEvaluationOfTradeAccountsReceivable" id="dwsn_ThresholdPeriodPastDueForAllowanceForDoubtfulAccountsEvaluationOfTradeAccountsReceivable" type="xbrli:durationItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="WilksBrothersLlcMember" id="dwsn_WilksBrothersLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration" />
  <xsd:element name="DawsonGeophysicalCompanyMember" id="dwsn_DawsonGeophysicalCompanyMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="AssetAcquisitionConsiderationTransferredNotePayableIssued" id="dwsn_AssetAcquisitionConsiderationTransferredNotePayableIssued" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="FeeRevenueMember" id="dwsn_FeeRevenueMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ReimbursableRevenueMember" id="dwsn_ReimbursableRevenueMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="WorkingCapital" id="dwsn_WorkingCapital" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" xbrli:balance="debit" />
  <xsd:element name="RisksAndUncertaintiesPolicyTextBlock" id="dwsn_RisksAndUncertaintiesPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="UnitedStatesOperationsSegmentMember" id="dwsn_UnitedStatesOperationsSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="CanadaOperationsSegmentMember" id="dwsn_CanadaOperationsSegmentMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ScheduleOfReconciliationOfEbitdaToNetIncomeLossAndToNetCashProvidedByUsedInOperatingActivitiesTableTextBlock" id="dwsn_ScheduleOfReconciliationOfEbitdaToNetIncomeLossAndToNetCashProvidedByUsedInOperatingActivitiesTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DividendsPolicyPolicyTextBlock" id="dwsn_DividendsPolicyPolicyTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization" id="dwsn_AdjustedEarningsBeforeInterestTaxDepreciationAndAmortization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ScheduleOfRevenueNetPropertyAndEquipmentCapitalExpendituresAndRightOfUseAssetsByOperatingSegmentTableTextBlock" id="dwsn_ScheduleOfRevenueNetPropertyAndEquipmentCapitalExpendituresAndRightOfUseAssetsByOperatingSegmentTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ManagementChargesAllocatedBetweenSegments" id="dwsn_ManagementChargesAllocatedBetweenSegments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="NoncashItemsAdjustmentsToNetIncomeLoss" id="dwsn_NoncashItemsAdjustmentsToNetIncomeLoss" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="DawsonOperatingLlcMember" id="dwsn_DawsonOperatingLlcMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GtcInc.Member" id="dwsn_GtcInc.Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="SinglePointNodeChannelsMember" id="dwsn_SinglePointNodeChannelsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="GeospaceNotesMember" id="dwsn_GeospaceNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="DebtInstrumentNumberOfMonthlyInstallments" id="dwsn_DebtInstrumentNumberOfMonthlyInstallments" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DebtInstrumentMaximumPrepaymentWithoutFeesPercent" id="dwsn_DebtInstrumentMaximumPrepaymentWithoutFeesPercent" type="dtr-types:percentItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="DebtInstrumentNumberOfNotesIssued" id="dwsn_DebtInstrumentNumberOfNotesIssued" type="xbrli:integerItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="instant" abstract="false" />
  <xsd:element name="StrategicTransactionCosts" id="dwsn_StrategicTransactionCosts" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="GeospaceNotesNoteSixMember" id="dwsn_GeospaceNotesNoteSixMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EarningsBeforeInterestTaxDepreciationAndAmortization" id="dwsn_EarningsBeforeInterestTaxDepreciationAndAmortization" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ContractWithCustomerContractAssetTableTextBlock" id="dwsn_ContractWithCustomerContractAssetTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="ContractWithCustomerAssetBillingsAndCostsRecognized" id="dwsn_ContractWithCustomerAssetBillingsAndCostsRecognized" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ContractWithCustomerAssetUnbilledReceivablesAndDeferredCostsIncurred" id="dwsn_ContractWithCustomerAssetUnbilledReceivablesAndDeferredCostsIncurred" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
  <xsd:element name="ContractWithCustomerLiabilityUnearnedRevenue" id="dwsn_ContractWithCustomerLiabilityUnearnedRevenue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="ContractWithCustomerContractLiabilityTableTextBlock" id="dwsn_ContractWithCustomerContractLiabilityTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AccountsReceivableRollForwardTableTextBlock" id="dwsn_AccountsReceivableRollForwardTableTextBlock" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" />
  <xsd:element name="AdjustmentToReconcileNetIncomeToCashProvidedByUsedInOperatingActivityIncreaseDecreaseInOperatingCapitalAndOtherItems" id="dwsn_AdjustmentToReconcileNetIncomeToCashProvidedByUsedInOperatingActivityIncreaseDecreaseInOperatingCapitalAndOtherItems" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="credit" />
  <xsd:element name="GeospaceNotesFirstFiveNotesMember" id="dwsn_GeospaceNotesFirstFiveNotesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateGrantDateFairValue" id="dwsn_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateGrantDateFairValue" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="false" xbrli:balance="debit" />
</xsd:schema>
