抗高温水基钻井液超高温高压流变性研究

37120091PETROLEUMDRILLINGTECHNIQUESVol137,No11Jan.,2009:2008206229;:2008209228:(863)(:2006AA06A1925)(:GKB0515):(1976),,,1997,2005(),,:[phone]!863#(,257017):,M75001,,;,,,2,1:;;;;:TE254+11:A:100120890(2009)0120005205,[122],,,,200,100MPa,[327](200),GraceM7500,1,,,1111M7500260,140MPa,11022s-1,(),114MPaM7500,API,,1121(:1172kg/L,7310mPas,6210mPas,1110Pa,9180mL,3010%),:310%+012%PAMS2601+310%Soltex+210%Desco+210%Drical2D+510%Resinex+115%SPNH+210%TRL+015%FLC2000+310%RZF23+,22016h,10min,113,,10min,600500400300200100502010r/min,120s,,,;,,3h,2,Origin715,221190180200220240,100MPa,111:,180,;180,;,240,,180,,200,122-2:;,;,300s-1,,,20mPas,20mPas,,1333,,,200,200,,,21262009145645646:1),,,;2)150,,150,,;3),,2131(30%),,Hoffman[8],,,,,;,,,,,,,,,,,,,,,,,,,,,,,,33112(H2B)2(R2S),11,H2B1,R0197H2B,7371:1//MPaRSRSRSH2BRSR2SRS900019865313500199142113019970012810199970166019997018915071019936210410197163103019966012620199791126019975110418088019904212920198271152019972012440198482130019965111920010001995311585019540313501992001307019861210401995811352101050199651109701944541350194490144501975931240199621122220110019885117090190325105019137014750197343131019867116323011501951321737018811610901827001518019733312901943821802401200191052194501851771080182230152201970431860186903179220,H2BR2S,312,,,,312111),p,ln()p(1/T),:ln()p=aT+b(1):()p=C1expaT(2)2),T,ln()Tp,:ln()T=cp+d(3):()T=C2exp(cp)(4)(2)(4),,:()T,p=C0expAT+Bp(5)(5)C0()0,:()T,p=()0expAT-T0+Bp(6),A,B,,31212(6),AB,1,22//MPa()t/mPas()c/mPas,%120543713837137010315071311563113801571808828113281020139200992615926152012621010525175251910162220110241642513721962301152411124188312724012023149241464125:t,c;=||/100%(R=019969):()T,p=44192exp[11012875/(T-90)+(51427310-4p)](7)2,,5%,,5%,,1,,,,820091()0(90),AB,,;B,41),,,2)H2BR2S,,H2B13),,5%,[1].[M].:,2001:57287.[2],,.[M].:,1994:9219.[3],,,.[J].,2007,27(5):78280.[4],.[J].,2003,24(3):1042109.[5]AliMShahjahen.TheeffectofhighTemperature,highpres2sure,andagingonwater2baseddrillingfluids[R].SPE21613,1990.[6]BriscoeBJ,LuckhamPF,RenSR.Thepropertiesofdrillingmudsathighpressuresandhightemperatures[J].PhilosphicalTransactions:PhysicalSciencesandEngineering,1994,348(1687):1792207.[7]RossiS,LuckhamPF,ZhuS,etal.High2pressure/high2tem2peraturerheologyofNa+2montmorilloniteclaysuspensions[R].SPE50725,1999.[8]HoffmanRL.DiscontinuousanddilatantviscositybehaviorinconcentratedsuspensionsIII.necessaryconditionsfortheiroc2currenceinviscometricflows[J].AdvancesinColloidandIn2terfaceScience,1982,17(1):1612184.[]RheologicalPropertiesofHigh2TemperatureWaterBasedDrillingFluidsatHighTemperatureandHighPressureZhaoHuaizhenXueYuzhiLiGongrangLiuBaofengWangHongxi(DrillingTechnologyResearchInstitute,ShengliPetroleumAdministration,Dongying,Shandong,257017,China)Abstract:Forthepurposesofunderstandingtherheologicalcharacteristicsofdrillingfluidsatultra2hightemperatureandhighpressure,therheologicalpropertiesofhightemperaturewaterbaseddrillingfluidsusedinShengke21Wellatultra2hightemperatureandhighpressurewereinvestigatedusingM7500HTHPrheometer.Theexperimentalresultsindicatethattheapparentviscosity,plasticviscosity,andgelstrengthdecreasewiththeincreaseoftemperature,whileincreasewiththeincreaseofpressure.There2sultsindicatethattheeffectoftemperatureonrheologicalpropertyofdrillingfluidsisgreaterthanthatofpressure.Theeffectofpressureincreasesgraduallywiththeincreaseoftemperature.TherheologicalcurvefittingresultssuggestthatH2BModelisbestforHTHPrheologicalproperties.Onthebasisofnu2merousexperiments,amodelforpredictingtheapparentviscosityandplasticofhightemperaturedrillingfluidsathightemperatureandhighpressurewasestablishedusingtheregressiveanalysis.Theresultsofthepresentinvestigationprovidedtheoreticalguidanceforthesuccessfulapplicationofultra2hightempera2turedrillingfluidsinShengke21Well.Keywords:waterbasemud;hightemperature;highpressure;rheology;mathematicalmodel9371: