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《鄂爾多斯盆地高橋構(gòu)造平緩地區(qū)奧陶系碳酸鹽巖巖溶古地貌特征與儲層分布-論文.pdf》由會員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在應(yīng)用文檔-天天文庫。
1、1000-0569/2014/030(03)-0757-67ActaPetrologicaSinica巖石學(xué)報鄂爾多斯盆地高橋構(gòu)造平緩地區(qū)奧陶系碳酸鹽巖巖溶古地貌特征與儲層分布張銀德周文鄧?yán)ネ醪墅愅跤?。蒙曉靈ZHANGYinDe,ZHOUWen,DENGKun,WANGCaiLi,WANGYong3andMENGXia0Ling1.油氣藏地質(zhì)及開發(fā)工程國家重點(diǎn)實(shí)驗(yàn)室成都理工大學(xué),成都6100592.長慶油田分公司勘探開發(fā)研究院,西安7100183.哈爾濱石油學(xué)院石油工程系,哈爾濱1500271.StateKeyLaboratoryofOilandGasReservoirGeolo
2、gyandExploitation,CDUT,Chengdu610059,China2.Exploration&DevelopmentResearchInstitute,ChangqingOilfieldCompany,藏’an710018,China3.DepartmentofPetroleumEngineering,HarbinInstituteofPetroleum,Harbin150027,China2Ol3.1O-08收稿.2014-02—10改回.ZhangYD,ZhouW。DengK,WangCL,WangYandMengXL.2014.Palaeogeomorph
3、ologyandreservoirdistributionoftheOrdoviciankarstifiedcarbonaterocksinthestructurally-gentleGaoqiaoarea,OrdosBasin.ActaPetrologicaSihica,30(3):757-767AbstractGaoqiaoareaofOrdosBasinpresentsgentlestructures.ThetopOrdoviciankarstifiedcarbonaterocksarecharacterizedbythedevelopmentofburiedplatfor
4、mandlimitedoccurrenceofkarsthighlandandkarstslope.Reservoirsareconcentratedonthekarstslopeandintheeasterntrenchoftheburiedplatform.Inthethesislargenumberofdatafromcore—sectiondescriptionandthin-sectionexamination,physicalpropertyexperimentation,weldrillingandlogging,andseismicexplorationhaveb
5、eenemployedtoidentifyandanalyzethepaleokarstatthetopofM~iagouFormation,Gaoqiaoarea,toreconstructthepaleokarstlandform.Typesofthepaleokarstlandformweresubdividedandtheirrelationshiptothereservoirswereanalyzed.TheexistenceofhiatusandkarstificationatthetopofMajiagouFormationhasbeenprovedbythestr
6、atigraphic,petrologic,mineralogicmarkersandevidenceofpaleokarst.Thetrenchesweredelineatedbytheoutcropedhorizonsofpaleo—weatheringcrustandresultsofseismicresearches.Thepaleo—karstgeomorphologicalmapwascompiledonthebasisofpaleo—geologicalmap,impressionsandresidual—thicknessinthestudiedarea.Thep
7、aleo·karstcanbesubdividedinto3second.orderlandformunits:karsthighland,karstslopeandburiedplatform.Thekarsthighlandcanbefurtherdividedinto2third—ordermicrotopography:karstplatformandkarstdepression.Theburiedplatformwascategrizedas4third-orderm