白音查干凹陷达尔其油田油气成藏规律

343()Vol.34No.320076JOURNALOFCHENGDUUNIVERSITYOFTECHNOLOGY(Science&TechnologyEdition)Jun.2007[]167129727(2007)0320277208[]2006212213[](1979-),,,:,E2mail:[e-mail](,610059)[],--,;,;22,,Y,[];;;[]TE122.3[]A(1),108,4206,200km2,,1Fig.1StructuralzoningmapoftheDaerqioilfiled,,,11.1,[1][3](2)-,,,3:(K1d3)(K1d2),;(K1d1)-2Fig.2ThesyntheticstratigraphiccolumnoftheDaerqiarea(2003,),,,,:40%,31.5%,161.610-3m2,20%,161.910-3m2;,19%,1210-3m21.2[4][6],(1),,,;,,2,,,,-;-,,,,,,-,,872()34,,-(),,,-,22.1,,,,,+1;,,,(),,;,,-[7][10]-,,,,,(),,,,,Ro0.7;,-,Ro0.7,200m400m;300m500m,600-,;-,,,2.2,,,,,,[11],,,,,,(1000m),17.17%35.11%,,,,8.10%22.15%,,,2.3,,,,,,,,,,,2.4,,,,,,,;,,[12](1),,,9723:1ThecontrollingprocessoffaultsoverthereservoirgenerationinthewestpartoftheBaiyinchagansagK1a1K1a2K1tK1d1K1d2K1d3K1sK2erCz//,,,,,,,,,,,,,,,,,,,81415,,,,,,,,,,,[13],[14]3,,,(3):,,,,,,1.31.4,,,,,,,,,,,,1.11.2,,,,,,,,,,,-,,,,,,,,,,,082()341823:,-,,,-44.1,,,,;,,,,,,,,,,;,NW,,4.2Y,(,1996),(),,,,,,,,,(4)4Fig.4ProfiledistributionsketchmapofhydrocarbonaccumulationzonesoftheDaerqioilfield,,,,,;,Y,Y,,4.34,NE-SW,,,,,,35,:4.3.1(),,,,,282()3436[6](5)53Fig.5TheanticlinetyperesidualoilreservoirofWellDa3inthehigherportions,,,,35622184.3.22(6),,,,,,,62Fig.6Thefault2blocktypeoilreservoirofWellDa2inthemiddleportion,1033,,4.3.32(7),;,272Fig.7Thestructural2lithologictypeoilreservoirinthelowerportion225(1):,;,;;,(2),22(3),Y,[1],,,.[J].,2003,30(4):32-34.[2]VANWAGONERJC,POSAMENTIERHW,MITCHUMRM,etal.Anoverviewofthefunda2mentalsofsequencestratigraphyandkeydefinitions[C]//SeaLevelChanges:AnIntegratedApproach.SEPMSpecialPublication,1988,42:39-45.[3]CROSSTA,BALERMR,CHAPINMA,etal.Applicationofhighresolutionsequencestratigraphy3823:toreservoiranalysis[C]//SubsurfaceReservoirCharacterizationfromOutcropObservations.Paris:EditionsTechnip,1993:11-33.[4],,,.[J].,2005,19(1):16-18.[5],,,.[J].,2005,12(3):16-18.[6],,,.[J].,1999,6():12-15.[7],,,.[J].,2004,11(1):23-35.[8],,,.[J].,2004,23(4):7-10.[9],,,.[J].,2004,25(4):437-443.[10],,,.[J].,2003,32(3):271-281.[11],,,.[J].,2000,22(4):6-10.[12],,.[J].,1999,6(2):9-14.[13],,,.[J].,1998,5():19-22.[14],.[J].,2005,(3):35-37.AccumulationpatternsoftheoilreservoirsintheDaerqiarea,Baiyinchagansag,InnerMongol,ChinaLILi,XUGuo2sheng,WANGWei,ZHOULian2deStateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,Chengdu610059,ChinaAbstract:TheDaerqioilfieldfoundedintheBaiyinchagansag,ErlianbasinlocatesonthesouthernslopeoftheBaiyinstructurebelt.ThemainsourcerockandreservoiraredistributedovertheLowerCretaceousAershanFormation,TenggeerFormationandthefirstmemberoftheDuhongmuFormation.Thedepositionalsystemisfluvial2delta2lake.Thesourcerockinthisareaisabundantbutthedifferentoneshavegreatmaturitydifference.Andthereservoirconditionisgoodwithhighheterogeneityandgoodsealcondition.Theredevelopshigherfaultedanticlinepools,middlelithologic2structuralpoolsandlowerstructural2lithologicpoolsinthearea.Theoilandgasaccumulationshowsitselfnearpetroleumsource,shortmigrationandhandyaccumulation,Ytypeandladderfaultandbandedpetroleumzone.Keywords:LowerCretaceous;oilandgasaccumulationregularity;Daerqioilfield;Baiyinchagansag482()34