曲流河储层构型表征研究进展

26720117ADVANCESINEARTHSCIENCEVo.l26No.7Ju.l,2011:10018166(2011)07069508*周银邦1,2,吴胜和2,计秉玉1,岳大力2,范峥2,钟欣欣2(1.中国石油化工股份有限公司石油勘探开发研究院采收率所,北京100083;2.中国石油大学资源与信息学院,北京102249):曲流河储层在我国各大油田占有很大比例,高含水期的剩余油被复杂的储层内部构型所遮挡,难以应用常规油藏描述方法进行挖潜为此,从储层构型的起源开始,分析建立储层构型定性及定量构型模式的研究方法,包括露头和现代沉积探地雷达高分辨率地震以及经验公式,并对各种方法和技术的优缺点进行简评结合曲流河地下储层构型研究的实践,分3个层次(河道点坝点坝内部增生体)总结归纳国内外学者在曲流河地下储层构型研究中应用的方法和取得的效果研究认为,曲流河储层构型模式研究发展迅速,但缺少内部构型(如点坝内部侧积层)的定量模式;地下储层构型研究已形成了一定的技术路线,但是构型模式和井资料有效拟合难度大,而且建立点坝内部侧积层的建模方法也尚不成熟针对目前的研究现状和存在的问题,指出了曲流河储层构型表征的发展趋势,这对于我国高含水期油气田的开发效率具有十分重要的实际意义,对丰富储层地质学也具有重要的理论意义:储层构型;侧积层;点坝;废弃河道:P618.1:A,,Allen[1]()Fluvialarchitecture,Miall[2],30,,,,[3][4][5][6][7][8][9][10],,,16;,,,,,,[11],1储层构型的概念及起源(ReservoirArchitecture),,,:20101012;:20110307.*:(:2008AA06Z206);(:20060425004).:(1983),,,,.Emai:[e-mail][12]3,Miall[2]19851991Allen3,6,10,,678[13,14]:0123,4,5,,,678(1)1[2,13,14]Table1Fluvialdeltasedimentaryarchitectureclassificationinthreelevelsequence[2,13,14]()/a/(m/ka)010-61()10-5~10-41052,10-2~10-11043100~101102~1034,102~103102~1035;103~104100~1016;104~10510-17;105~10610-1~10-28(3)106~107Miall[2],,20,8,CH()LA()DA()GB()SB()SG()LS()FF()Halfar[15]Leipzig,Miall8,SL(ShallowLakedeposits),CHCHg(palaeoriversysterm)CHk(smallchannel),,,,,,,,2曲流河储层构型研究方法,,2.12.1.1露头和现代沉积,,;,,,,,,,,,,,:Allen[16]4Bridge[17],,Matthew[18]PiceanceCoalWilliamsFork,,,Marinus[19]69626,2:,,;,,,[20][21][22],[23]2.1.2探地雷达(1MHz~1GHz),,,(),,,,50m2080Alexander[24],,,Corbeanu[25]CoyoteFerron,,,,2.1.3高分辨率地震方法,,Rijks[26],,Vitor[27]Green,Richard[28],Bruce[29]Sweetness,,,,,,,,2.2,,,,(W)(Wh)(Wm)3(1),3:1Fig.1Sedimentarymodelchartofmeanderingriver2.2.1河流满岸宽度公式(1)SchummSchumm[30]36,:Wh=1.65dF=255M-1.08W=FDW=1.5wP=3.5F-0.27A=2.7W1.1(1)Wh(m)();d(m);W(m)();w(m);M(0.074mm,%);F(/);P;A(m)(2)Leeder6977:Leeder[31]107,1.7,;1.7,(1),:2/3,:logW=1.54logWh+0.83w=2/3WW=1.5Wh/tan(2)w(m);()(3)Leopold[32]W=(L/10.9)0.99(3)L,(m)2.2.2河流满岸深度公式Bridge[33],:=Sm/1.8hmhm=2.221.32Wh/hm=6(4):hm(m);;Sm(m);Wh(m)2.2.3单一曲流带宽度公式Lorenz[34]1985,:Wm=7.44W1.01(5)Wm(m),,(,),,,3曲流河地下储层构型研究进展,,,,,,,3.1,[35],,,,2,2[36],,,5,,3.22:;,[23],1.719,,,,(2)3.32:,,,,;,,,(1)侧积层规模,,698262Fig2PointbarplanegraphinSabeioilfieldtestarea,,,,,,,Leeder(2)(2)侧积层倾角,3:,,,,,;,[37];,[31][38][39]12,,,0.9,(3)侧积层建模,2/3,,,,,[40]3~4,,,,,,(3)3Fig3Fencediagramoflateralaccretioninpointbar4存在问题及展望,,,,,:(1)定量的可预测储层构型模式不足,,,,,6997:(2)构型模式与地下井资料有效拟合难度大,,,,,,,,,100m,,(3)三维构型建模的级次不够建模方法不成熟,,,,,,,:,;;();,,;,(References):[1]AllenJRL.Theplanshapeofcurrentripplesinrelationtoflowcondition[J].Sedimentology,1977,24(1):5362.[2]MiallAD.Architecturalelementanalysis:Anewmethodoffaciesanalysisappliedtofluvialdeposits[J].EarthScienceReviews,1985,22:261308.[3]NetonMJ,JoachimD,ChristopherDO,etal.YoungArchitectureanddirectionalscalesofheterogeneityinalluvialfanaquifers[J].JournalofSedimentaryResearch,1994,64(5):245257.[4]WillisBJ,BehrensmeyerAK.ArchitectureofMioceneoverbankdepositsinnorthernPakistan[J].JournalofSedimentaryResearch,1994,64(2):6067.[5]YinTaiju,ZhangChangmin,ZhaoHongjing.Remainingoilpredictionbasedoncomprehensivegeologicalanalysismethods[J].AdvancesinEarthScience,2006,21(5):539544.[,,.[J].,2006,21(5):539544.][6]FuQingping,LiSitian.Outcropanalysisofarchitectureoflacustrinedeltaicplainsandbodies[J].SedimentaryFaciesandPalaeogeography,1994,14(5):2133.[,.[J].,1994,14(5):2133.][7]ClarkJD,KevinTP.Architecturalelementsandgrowthpatternsofsubmarinechannels,applicationtohydrocarbonexploration[J].AAPGBulletin,1996,80(2):194221.[8]XieXinong,LiSitian,GaoDongsheng,etal.ArchitecturalelementsandsedimentarymodelforbarriersandbodiesintheFengchengMiningdistrict,Jiangxi[J].SedimentaryFaciesandPalaeogeography,1994,14(4):19.[,,,.[J].,1994,14(4):19.][9]YuXinghe,MaXingxiang,MuLongxin,etal.GeologyModelandHierarchyInterfaceAnalysisofBraidRiver[M].Beijing:PetroleumIndustryPress,2004:60106.[,,,.[M].:,2004:60106.][10]JiaoYangquan,YanJiaxin,LiSitian,etal.ArchitecturalunitsandheterogeneityofchannelreservoirsintheKaramayFormation,outcropareaofKaramayoilfield,JunggarBasin,northwestChina[J].AAPGBulletin,2005,89(4):529545.[11]LiYang,GuoChangchun.Thearchitectureandreservoirevaluationofundergroundlateralaccretionbar:AcasestudyontheNg52+3sandbodyin7thblockwestoftheGudongoilfield[J].ActaSedimentologicaSinica,2007,25(6):942948.[,.Ng52+3[J].,2007,25(6):942948.][12]AllenJRL.Studiesinfluviatilesedimentation:Bars,barcomplexesandsandstonesheets(lowersinuositybraidedstreams)intheBrownstones(L.Devonian),WelshBorders[J].SedimentaryGeology,1983,33:237293.[13]MiallAD.Architecturalelementsandboundingsurfacesinfluvialdeposits:AnatomyoftheKayentaFormation(LowerJurassic),SouthwestColorado[J].SedimentaryGeology,1988,55:233262.[14]MiallAD.Hierarchiesofarchitecturalunitsinterrigenousclasticrocks,andtheirrelationshiptosedimentationrate[C]MiallAD,TylerN,eds.TheThreedimensionalFaciesArchitectureofTerrigenousClasticSedimentsandItsImplicationsforHydrocarbonDiscoveryandRecovery.SEPMConceptsinSedimentologyandPaleontology,1991,3:612.[15]HalfarJ,RiegelW,WaltherH.Faciesarchitectureandsedimentologyofameanderingflu