高分辨率双侧向测井响应数值模拟分析

20078424*,1000832006926高分辨率双侧向测井响应数值模拟分析朱军*!冯琳伟!(;!),..,2007,42(4):457~462我国自行研制的新型的高分辨率双侧向测井仪已逐渐投入大规模的生产应用,可为解决油田薄层油气藏的勘探开发问题提供有力的支持本文利用有限元方法对新型的高分辨率双侧向测井仪及国内目前大规模应用的常规双侧向测井仪的分层能力探测深度侵入影响和井眼影响等响应特征进行了数值模拟,并对其测井响应进行了对比分析数值模拟表明:与常规双侧向测井相比,虽然高分辨率双侧向测井资料井眼的影响更复杂,但测量结果既能得到较高纵向分辨率,又具有较深的径向探测深度,基本上可以取代常规双侧向测井仪在测井中应用文中数值模拟结果可以为测井作业人员和解释人员在资料验收及解释处理等方面提供参考和指导高分辨率双侧向测井测井响应数值模拟分层能力探测深度井眼影响12070,(),,,,0.6~09m,,;,,,,,,,21,1(a);(b)4582007(M1)(A0A0∀)(M2M2∀)(A1A1∀A2A2∀)(A1*A1*∀),A0A0A0∀,M1(M1∀)A0A0∀M1,,,860~960m,456m,,A0A0∀,M1M2M2∀,A0,M1M1∀M2M2∀Rad=KdVd(M1)Id(A0)+Id(A0∀)(1)Ras=KsVs(M1)Is(A0)+Is(A0∀)(2):KdKs;Vd(M1)Vs(M1)M1;Id(A0)Id(A0∀)Is(A0)Is(A0∀)3,,()2(r,z),u(r,z)rrur+zruz=0(3)u-=u+(4)1-un-=1+un+(5):n;#+∃#-∃2u|r=+%z=&%=0(6)(r=0)u|r=0=0(7)A0A0∀u=uA0=uA0∀=C0(8)∋A0,A0∀runds=I02(9)M(M1M2M2∀)u=uM1=uM2∀=CM(10)∋Mrunds=0(11)A1*A1*∀u=uA1*=uA1*∀=C*(12)∋A1*,A1*∀runds=0(13)A1A1∀424:459u=uA1=uA∀1=C1(14)∋A1,A∀1runds=I12(15)A2A2∀()u=uA2=uA2∀=C2(16)∋A2,A2∀runds=I22(17)un=0(18),[2,3],441,,3RaLLDLLS,HLLDHLLS,8in,Rt,H,Rs,04m,100m,08m3:Rt/Rs=10,Rs=10m,Rm=1m,=8in,412,01101224m,,01m4:Rs=10m,Rt=300m,=8in,Rm=1m425310(1500(1,10(1,460200704m,08m;500(1,05m,10m6410(1500(1,,,,,5:Rt/Rs=500,Rs=10m,Rm=1m,=8in.6:Rs=10m,Rt=30000m,Rm=1m,=8in.5517,(Rm1m,Rxo10m,Rt50m):(1),,,RtRxo;(2),072m,HLLDLLD,HLLD,072m,HLLD,LLD;7(3),038m,HLLS,038m,LLS,,,,424:4615289Rxo,,05m,Rxo,,,072m66110,1m,30m:(1),,,;,025m,,;025m,;(2)020m(8in.),,020m,;(3),;020m,30m;020m,,020~040m;037m,020~030m,028m10:Rm=1m,Rt=30m6211(Rc/Ra,Rc),8in,1m:(1)1~10000m,,HLLD0461~101;HLLS0532~101;4622007LLD0842~100;LLS0933~103,(2)(30m),,,;(30m),,1,(3),,,(),()11:8in,Rm=1m7,,()(1),01m,04m,,,(2),():,,,072m,;072m,,(3):(,),;,,,,,,,,,[1]SmitsJWetalHighresolutionfromanewlaterologwithazimuthalimaging.SPE30584,1995[2].().:,1986[3]..:,1984[4]...:,2001[5]...:,2002(本文编辑:冯杏芝)20078424作者介绍,,1930;1952;50,,,#∃;,30;,1962;1981,1990,2000;();(),1957;1992;,10,1967;1989,2002();,,1978;2001,2006;10;,1972;1994,2005();;(),,1973;1995,2006;,1963;1980(),,1991;,(),1958;1982;,,1981;2003,;,,1976;1999;;(),1964;1983,1991;,,1981;2004(),2006;,,1970;1992,2000();;,(),1979;2001,2004,2007;8;,,1958;1982,1987,1991();(),,1969;1994,;,;,1966;1987,,1990,,20,,1980;2004(),;,(),1973;1995,2004();;(),1981;,,,1945;1969;,,;)∗Vol.42No.4Abstracts+techniquetocarryout2DTEandTMcombinationinversionfor2Dgeoelectricmodelbasedonpracticaltopographicstructure.Itisshownbyprocessingresultsofsurveyeddatathatgeoelectricsectionsyieldedfromtheapproachpresentedbythepaperwerecharacterizedbynotonlyidentifiedstratigraphicdivision,butalsogoodcorrelationamongseparatestrata,incontrast,theregularityofgeoelectricsectionsprocessedbyformerordinaryapproachwaspoorer.Keywords:magnetotelluricsounding,mountainousarea,interpretationZhangXiang,KeyLabofEducationMinistryforHydrocarbonResourceandExplorationTechnology,CollegeofGeophysics,YangtzeUniversity,JinzhouCity,HubeiProvince,434023,ChinaAnalysisonnumericsimulationofhighresolutionduallaterolog(DLL)response.ZhuJunandFengLinwei.OGP,2007,42(4):457~462Thenewtypeofhighresolutionduallaterologtoolhasbeengraduallyputintolargescaleapplicationinproduction,whichcanprovidepowerfulsupportfortheexplorationanddevelopmentissuessolvingthethinlayerreservoirinoilfields.Thepaperusedfiniteelementalgorithmtocarryoutnumericsimulationforsuchresponsecharactersaslayeringability,depthofinvestigation,influencesofinvasionandborehoeofnewtypeofhighresolutionduallateralogtoolandordinaryduallaterologtoolthathasbeenusedinlargescaleathomeuptonow.Thenumericsimulationshowedthatincomparisonwithcommonduallaterologalthoughtheinfluenceofboreholeonhighresolutionduallaterologdataismorecomplex,thesurveyingresultswerecharacteristicsofbothhigherverticalresolutionanddeeperradialdepthofinvestigation,whichcanbasicallybeappliedinloggingtoreplacecommonduallaterologtool.Theresultsofnumericsimulationinthepapergavereferenceandguidetologgingworkersandinterpretersindatacheckandinterpretationaswellasprocessing.Keywords:highresolutionduallaterolog,loggingresponse,numericsimulation,layeringability,depthofinvestigation,influenceofboreholeZhuJun,CNPCResearchInstituteofPetroleumExplorationandDevelopment,XueyuanRoad,HaidianDistrict,BeijingCity,100083,ChinaAnalysisofvalleyongentlydippingslopeofsagandaffectonhydrocarbonreservoir.HaoZhiwei,SuChaoguang,YanZhaominandZhangYingge.OGP,2007,42(4):463~467Thegentleslopeofsagnearthesourcesagisgenerallytheprospectivezoneofdevelopmentoflithologicreservoir.Thevariousreservoirsdevelopedonthegentleslopearemostlycloselyrelativetovalleyonthegentlydippingslope.Thesuperioranalysisofpalaeovalleycandiminishthemultiplesolutionsfrompredictingsedimentarysystembyseismicfaciesandreducereservoirpredictingrisk.Combinationwiththeknowledgeofsequencestratigraphy,wefurtheranalyzedthesedimentaryfeatureofvalleyonthegentleslope,summedupdevelopmentfeatureofprospectivereservoirindifferentsedimentarysystemonthevalleyofgentleslopeofsaganddifferenthydrocarbonmigrationeffectproducedindifferentsedimentaryenvironmentofvalley,whichhasguidemeaningfortheexplorationofstratigraphicandlithologicreservoirs