白音查干凹陷南部斜坡带白垩系层序地层及其与油气藏的关系

:20001019::(1972-),(),,,:10005870(2001)05000105白音查干凹陷南部斜坡带白垩系层序地层及其与油气藏的关系吴明荣1,姜在兴1,邱隆伟1,冯建辉2,谈玉明2,王立志2(1.石油大学地球资源与信息学院,山东东营257061;2.中原石油勘探局,河南濮阳457001):,,,,,,,:;;;:TE121.3:A1,,3200km2,,,[1],,,22.1,,3(1)(),2,62.2,,[2~4],,,;,,(),,,,(),,,,2001年第25卷石油大学学报(自然科学版)Vol.25No.5第5期JournaloftheUniversityofPetroleum,ChinaOct.20011,,,,,,,,,,,,,,,2.3,,[2]!2!石油大学学报(自然科学版)2001年10月,(2),,,,,,,,,23(FFS)(MFS),(3)(1012),,,313()3,12,4,3,,,:∀,,,,;#,,,!3!第25卷第5期吴明荣等:白音查干凹陷南部斜坡带白垩系层序地层及其与油气藏的关系4,,168,417,,16;,8;,3;,17(4(a))4,,636,123,529,16108,117,8,,,(4(b)),,3,14,,;,55.1,(5),,3,,3;,,,(3),[5],8,,,5.2,!4!石油大学学报(自然科学版)2001年10月;,,,,,,,,55.3,,,,,,,,;,,,,,,,,,,,,,6,,,,(),16,:[1],,,.[J].,1998,13(4):21-24.[2],.[J].,1999,26(4):49-53.[3].[J].,1997,21(3):11-15.[4],,,.[J].,1998,25(2):8-12.[5],,,.[J].,1998,19(4):326-329.[6],,.[M].:,1996.[7],,.[M].:,1996.(责任编辑陈淑娴)!5!第25卷第5期吴明荣等:白音查干凹陷南部斜坡带白垩系层序地层及其与油气藏的关系ABSTRACTSSEQUENCESTRATIGRAPHYANDHYDROCARBONPATTERNOFCRETACEOUSINTHESOUTHSLOPEAREAOFBAIYINCHAGANDEPRESSION/WUMingrong,etal.(FacultyofGeoRecourceandInformationintheUniversityofPetroleum,China,Dongying257061)ShiyouDaxueXuebao2001,25(5):1~5Accordingtotheprinciplesandtechniquesofsequencestratigraphy,thesequenceoflowerCretaceousinthesouthslopeatwestBaiyinchagandepressionisdividedintothreeparts.Thedistributionandevolutionofsedimentarysystemsareanalyzed,andasequencestratigraphicmodelisbuilt.TakingDaerqiareawithmorematureexplorationlevelasanexample,sequencestratigraphy,microsedimentaryfaciesandoilinessofCretaceousarediscussed.Therelationshipamongthesefactorsissummarized.Itisindicatedthattheoilinessinthisareaiscontrolledbybothfirstormaximalfloodingsurfacesandmicrosedimentaryfacies.Apatternmodelofformationanddistributionofoilandgasreservoirinthisareaisdeveloped.Someideasforthefurtherexplorationareprovided.Keywords:Baiyinchagansag;Cretaceous;sequencestratigraphy;reservoirpatternGENESISTYPESOFLOWPERMEABILITYJURASSICSANDSTONERESERVOIRSANDPREDICTIONOFFAVORABLERESERVOIRSINQIANGTANGBASIN/ZHANGLiqiang,etal.(FacultyofGeoResourceandInformationintheUniversityofPetroleum,China,Dongying257061)ShiyouDaxueXuebao2001,25(5):6~10JurassicreservoirsandbodyiswidelydevelopedinQiangtangbasin.Theporosity,permeabilityandporestructureofsandstoneareallworse.Theanalysisonavailableoutcrop∃ssamplesrevealsthatthesandbodymainlybelongstolowpermeabilityreservoir.Bycomprehensiveanalysesandinvestigations,thelowpermeabilitysandstonereservoirsinJurassicareclassifiedintosixtypesbasedontheirorigin.Reservoirpotentialvarieswiththedifferentreservoirtypes.DissolvedsandstonereservoirswithunstablecomponentsarethefavorablegoodqualitysandstonereservoirsinJurassicofQiangtangBasin.Keywords:Qiangtangbasin;Jurassic;sandstonereservoirs;diagenesis;reservoirclassification;reservoirpredictionEVOLUTIONOFJUNGGARLATECARBONIFEROUSPERMIANFORELANDBASIN/CHENShuping,etal.(BasinandReservoirResearchCenterintheUniversityofPetroleum,China,Beijing,102200)ShiyouDaxueXuebao,2001,25(5):11~15ThedelimitationandcorrelationofPermiangroupinJunggarbasinareanalyzedintermsoftheoutcrops,drillingandgeophysicaldata.Combiningwiththegeologicalanalysesofthetectonicsettingandbasinfilling,thePermiansequencesofthebasinaredividedandcompared.TheJunggarbasinintheLateCarboniferousandPermianunderwentforelandbasindevelopingprocesseswiththreeforelandbasinsystems,includingtheWestForelandBasin,theKelameiliForlandBasinandtheNorthernTianshan.Theyaredifferentinthedistributionrange,developedlevelanddevelopingtime.Allofthestructuresinthebasinareresultedfromthepilingupandcompoundingofthethreesystems.Keywords:Junggarbasin;LateCarboniferous;Petmian;forelandbasin;evolution!!Vol.25No.5Oct.2001JournaloftheUniversityofPetroleum,China(EditionofNaturalScience)