20081CHINESEJOURNALOFGEOLOGY43(1):50643(257061)2,,,,,,,,,;,:TE122:A:0563-5020(2008)01-050-153(:2001BA605A209221),,197612,,e2mail:hongczh@163.com2007-01-16,2007-04-25,()()(,2005)(,2000),(),(,2004)(,2005)(,2004;,2004)(,2006;,2006),(1),1(2%5%,12%)1:1F1.;F2.;F3.;F4.;F5.;F6.;F7.Fig.1AsimplifiedmapshowingstructuralcharacteristicsoftheDongyingSag(106148),,(,2004),,,,,,(,2003),:,113118;,112115,,118,2,,(2),3:,,21312;,,207208;,,193947,,1520082Fig.2DistributionoffluiddynamicsystemsintheDongyingSag2,,(,1998,2000)?WoodandSurdam(1979)WoodandHewett(1984),DewersandOrtoleva(1988),(),,(3)DewersandOrtoleva(1988):1)(),Rayleigh,;2),80200m,2,,(,1989),,,,,SiCaFeMg,251:3(DewersandOrtoleva,1988)B,Fig.3Hydro2convectioncellandtheredistributionofdiageneticsubstance(afterDewersandOrtoleva,1988),4(PrigogineandNicolis,1989),,:Ca2+2200m,CaMg2200m,,,,,,,(4)DewersandOrtoleva(1988),,,2000m,20003000m2,,,,,,,2113520084(,1989,)1.;2.;3.;4.;5.;6.();7.;8.;a.,;b.,,,,;c.,,,,,,;d.,,,,;e.,;f.Fig.4Asketchshowingmechanismofgeochemicalself2organizationaboutformationofoverpressurecompartmentintheDongyingSag,,2,,,,,,,,,,,,451:,,,17%30%(,1989),,,,,,3(1)(PriceandBarker,1985;HaoFangandChenJianyu,1992),,,,(Ro),Ro,2400m,Ro,(2400mRo12,2400m),,,(5),551Ro(6)Ro,Ro,,RoRo,:,,;,2MPa,,,,(7),22,,115210,Ro,,22,,,5520085RoFig.5VerticaldistributionofRo,geotemperature,fluidpressureandpressurecoefficientintheDongyingSag,;,,,2,,,(,2004a)Ro(Ro),,,Ro(8),(PriceandWenger,1992),,,Ro,,,,Ro,,,,,(2),,,;2651:6551RoFig.6VerticaldistributionofRooftheWellYong2551intheDongyingSag,;,(9),,,,(,2006;,2006),(,1990;,1992)(),2:4,:,,,,,,25,1168:,,,1;702,(1114),,,014(,1990),,,,,,7520087FS1Es4Es3Es2Es1EdN1gN2mN3pFig.7Distributionoffluidpressureandexcessivepressureofthebottomofthe4thMember,ShahejieFormationintheWellFS1oftheDongyingSag,::,(,2002),1000m,110,10MPa,,,15001800m,1101103,71510MPa,,1800m,11031179,715MPa,,,,,,,,2,,,,,(,1999),(,1998)(10)851:8RoFig.8DistributionofpressurecoefficientandabnormalvalueofRointheDongyingSag9Fig.9DistributionofhydrocarbonaccumulationsystemsinthecentralanticlinezoneintheDongyingSag4(,1995),,,,9520082,,,2,,,,,,,,87931100,,,,,(,1996)101.;2.;3.;4.;5.;6.;7.;8.Fig.10DistributionmodelofgasreservoirsandheavycrudeoilreservoirsintheDongyingSag(3),(,2004a,2004b),,,(,2007)061:14374,;:,,(,2005),,()(,2004a,2004b):,,23,(,1999),:,,(,2006),,,,,4,,,,,,,!,.2005..,34(1):7987.ChenZhonghongandZhaMing.2005.GeologicalandgeochemicalcharacteristicsofhydrocarbonexpulsionfromsourcerocksinDongyingdepression.Geochimica,34(1):7987.,,.2004..,25(4):444454.ChenZhonghong,ZhaMingandJinQiang.2004.EpisodicexpulsionofhydrocarbonsinoverpressuredsystemsinDongyingde2pression.Oil&GasGeology,25(4):444454.,,,,.2004a..D,34(5):443451.162008HaoFang,JiangJianqun,ZouHuayao,FangYongandZengZhiping.2004a.Thesuppressionofover2pressureonorganicmattermaturation.ScienceinChina,SeriesD,34(5):443451.,,,.2004b..,25(6):3843.HaoFang,ZouHuayao,FangYongandZengZhiping.2004b.Overpressure2faultcontrolledfluidflowandepisodichydrocar2bonaccumulation.ActaPetroleiSinica,25(6):3843.,,,,,.2003..,10(2):1921.HaoXuefeng,ZongGuohong,XiongWei,ZhuoQingong,MinWeiandNingFangxing.2003.Thereservoirformingassem2blageandhydrocarbonfielddistributioncorresponding.PetroleumGeologyandRecoveryEfficiency,10(2):1921..1989...16(2):1623,16(3):1623.HuJishi.1989.Abnormalpressure,fluidfracturingandmigrationofoilandgas.PetroleumExplorationandDevelopment,16(2):1623,16(3):1623..1998..,19(1):6873.JiangYoulu.1998.Poolformingcharactersofcomplexfault2blockoilandgasfieldsinDongxin.Oil&GasGeology,19(1):6873.,.1999..,26(5):3942.JiangYouluandZhangYu.1999.Maingeologicalfactorscontrollingtheaccumulationanddistributionofoilandgasinacom2plicatedfault2blockregion.PetroleumExplorationandDevelopment,26(5):3942..1991..,18(2):1924.LiChunguang.1991.AdiscussionontheformationandthedistributionofoilandgaspoolinDongyingbasin.PetroleumEx2plorationandDevelopment,18(2):1924..1992..,13(1):3743.LiChunguang.1992.OnthecharactersandformationofabnormallyhighpressurehydrocarbonreservoirsinDongyingbasinanditssignificanceinoilfinding.ActaPetroleiSinica,13(1):3743..1995..,15(4):1013.LiChunguang.1995.DiscussionondistributivelawofgaspoolsinDongyingandWeibeibasins.NaturalGasIndustry,15(4):1013..1996..,3(1):15.LiChunguang.1996.AnapproachtogeneticmechanismofheavyoilreservoirinDongyingdepression.SpecialOilandGasReservoir,3(1):15.,,,,,,.2006..,41(4):564577.LiHeyong,LiuZhen,DangYuqi,MaDade,ZhangYongshu,ZhangYanhuaandChenYanpeng.2006.Evolutionofgeo2temperature2pressuresystemsanditsrelationtodistributionofoil2gasaccumulationinthewesternQaidamBasin.Chi2neseJour.Geol.,41(4):564577.,,,.2004..,4(12):1416.LiLingxi,SuYushan,HaoJialiangandXieYuan.2004.ReservoiringcharacteristicsofdeepnaturalgasinDongpuDepres2sionEffectofoverpressurecompartment.NaturalGasIndustry,4(12):1416,,,.2006..,41(4):586600.LiYong,ZhongJianhua,WenZhifengandWangHaiqiao.2006.Oil2gasaccumulationtypesanddistributionofmudstonerocksintheJiyangDepression.ChineseJour.Geol.,41(4):586600..2002.:.,24(6):533536.LiuXiaofeng.2002.Overpressuretransference:con