利用自然γ能谱测井资料确定粘土矿物的含量及其应用

1,1,21.,1300262.,330038:,,UThK,,,,,,10%:;;;:P631.622:A:167125888(2010)0120215207:2009205214:(2723);(498042300423):(1963),,,,,,E2mail:[e-mail]alContentbyNaturalGamma2RaySpectralLoggingDataLIUJing2hua1,WANGZhu2wen1,YiQing2ping21.CollegeofGeoExplorationScienceandTechnology,JilinUniversity,Changchun130026,China2.InstituteofNuclearGeologicalSurveyofJiangxiProvince,Nanchang330038,ChinaAbstract:Basingonthechartanalysisforclaymineralcontent,acrossplotofclaymineralcontentandradioactivityelementconcentrationwasobtained,andamultivariatelinearrelationbetweenclaymineralcontentandradioactivityelementU,ThandKwasestablished,derivingaregressionequationtoestimateclaymineralcontent.Throughtheregressionanalysisofthedatafromdifferentwellsectionsorthesamewellsectionofdifferentformations,atypicallinearregressionmodelwasprovided.Theapplicationofthemodeltoarealwellsectiongotaverticalvariationofclaymineral,whichwasinanexcellentagreementwiththepracticalinterpretations.Keywords:naturalgamma2raylogging;clayminerals;chartanalysis;regressionequation0,,70%,[122][3],[4],UThK40120101()JournalofJilinUniversity(EarthScienceEdition)Vol.40No.1Jan.2010,Th/K[5],,,[6],,[7],,Th/K////,,,,,,1[7]:(1)Th/K2.0280100%10,/(/),1%,1%,,/(/)0Th/K2.0Th/K28(2)K(,)3.51%8.31%,100%,K3.51%K3.5%Th/K2.03.5,1.03.0,,K,100100%(3)K,,,,[829]VC++6.0,1:(1):1Fig.1Analysischartofclaymineral,/(/),(2):/(3),(),100%,()2D21,23,,,(46):K,-0.431Th,0.68U,0.02K,0.892,K1%4%Th,0.6U,-0.1612()402D21Fig.2ClaymineraldistributionsofNenjiangFormationofwellD213D21Fig.3ClaymineraldistributionsinMember4ofQuantouFormationofwellD214D21KThUFig.4ScatterdiagramontherelationshipamongthekaolinitecontentwithU,Th,KelementsofwellD215D21KThUFig.5ScatterdiagramontherelationshipamongtheillitecontentwithU,Th,KelementsofwellD217121,:6D21KThUFig.6ScatterdiagramontherelationshipamongthesmectitecontentwithU,Th,KelementsofwellD21K,-0.741Th,-0.651U,0.113,[10211]D21,7D21Fig.7Cross2plotoftheclaymineralcontentsandthecalculatedvalueswithregressionequationofwellD21w()w()w(),w()w()w():w()=36.431-0.045w(U)+3.288w(Th)-14.28w(K),w()=25.094-0.131w(U)-2.003w(Th)+19.262w(K),w()=38.247+0.175w(U)-1.135w(Th)-5.196w(K):w();w();w();w(U)w(Th)w(K)UThK7,,w=w,D22,,88,,w=w,,812()408D22Fig.8Cross2plotoftheclaymineralcontentsandthecalculatedvalueswithregressionequationofwellD2279D23Fig.9ComputedclaycontentresultscomparisonfortheMember1ofQingshankouFormationofwellD23basedontheregressionequationfromthedifferentwellsw()(D21)w()(D21)w()(D21)D21;w()(D22)w()(D22)w()(D22)D22,,D21D22D23,,9,,,,,,4,D23,1024102470m,,,,,w()20%98%,63%;w()2%72%,32%;w()028%,4.60%20%90%,10%70%,020%2433.202434.00m,X,(10),,10%5:(1)9121,:10D2324102470mFig.10ClaycontentsofMember1ofQingshankouFormationdistributedwiththedepthbetween241022470mofwellD23022()40,(2),,,,,,10%(3),,,,(References):[1],,,.[J].,2003,20(6):26229.ZHANGZhen2cheng,SUNJian2meng,ZHANGWei,etal.PredictionofformationsensitivitywithnaturalgammarayspectrometrylogusedinDagangoilfield[J].DrillingFluidandCompletion,2003,20(6):26229.[2],,.[J].,2002,22(6):42244.ZHAODa2hua,LIBao2min,ZHAOHui2tao.EvaluationUpperPalaeozoicsandstonereservoirsensitivitybyuseoflogdata[J].NaturalGasIndustry,2002,22(6):42244.[3],.[J].,2004,17(6):18222.LENGJun,LONGYu2mei.Applicationofclaymineralcharacteristicsanalysisinsandstoneoilreservoirs[J].JournalofJianghanPetroleumUniversityofStaffandWorkers,2004,17(6):18222.[4],,,.[J].:,2008,32(5):58262.CHENJun2hai,CHENMian,JINYan,etal.Newmethodofdeterminingclaymineralcomponentsofmudshaleandoptimizationofdrillingfluidperformance[J].JournalofChinaUniversityofPetroleum:EditionofNaturalScience,2008,32(5):58262.[5]SchlumbergerWirelineandTesting.Schlumbergerloginterpretationcharts[M].Houston:SchlumbergerEducationServices,1996:4230.[6],.[J].,2004,11(4):78280.DAIJian2hua,LIShao2xia.ApplicationofnaturalgammarayspectrometrylogtotheglutenitebodyofthenorthernacticregioninDongyingsag[J].Oil&GasRecoveryTechnology,2004,11(4):78280.[7].[J].,1998,22(5):3492352.SHIQiang.PreliminaryinvestigationonquantitativeanalysisofthecompositionofclaymineralsusingNGSlog[J].WellLoggingTechnology,1998,22(5):3492352.[8],,.[J].,2007,19(2):1082111.WANGZhu2wen,LIUJing2hua,HUANGQian.Usingnaturalgamma2rayspectroscopylogmethodtodetermineclaymineralcontent[J].LithologicReservoirs,2007,19(2):1082111.[9],,.[J].:,2007,37():1432146.HUANGQian,LIUJing2hua,WANGZhu2wen.Theapplicationofnaturalgamma2rayloggingdataindeterminingthecontentofclayminerals[J].JournalofJilinUniversity:EarthScienceEdition,2007,37(Sup.):1432146.[10].[J].,2008,30(6):2682270.GUOYing2wen.Applicationofnaturalgammarayspectroscopylogforanalysisofclaymineralcontent[J].JournalofOilandGasTechnology,2008,30(6):2682270.[11],,,,[J].,1996,17(2):24227.GUOYu2feng,FUShi2you,DUHong2lie,etal.RelationsbetweennaturalgammarayspectrometryandlithologicparametersinSanzhaoregionofSongliaobasin[J].ActaPetroleiSinica,1996,17(2):24227.1221,: