鄂尔多斯盆地高桥构造平缓地区奥陶系碳酸盐岩岩溶古地貌特征与储层分布-论文.pdf

《鄂尔多斯盆地高桥构造平缓地区奥陶系碳酸盐岩岩溶古地貌特征与储层分布-论文.pdf》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。

1、1000-0569／2014／030(03)-0757-67ActaPetrologicaSinica岩石学报鄂尔多斯盆地高桥构造平缓地区奥陶系碳酸盐岩岩溶古地貌特征与储层分布张银德周文邓昆王彩丽王勇。蒙晓灵ZHANGYinDe，ZHOUWen，DENGKun，WANGCaiLi，WANGYong3andMENGXia0Ling1．油气藏地质及开发工程国家重点实验室成都理工大学，成都6100592．长庆油田分公司勘探开发研究院，西安7100183．哈尔滨石油学院石油工程系，哈尔滨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