黄骅坳陷中一新生代构造变形特征及对潜山油气成藏的影响

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中图分类号:P542 文献标识码:A 文章编号:2097-5465(2025)03-0043-11
Deformation Characteristics of Meso-Cenozoic Structures in Huanghua Depression and Their Impact on the Formation of Oil and Gas Reservoirs in Buried Hills
Abstract;Basedonpreviousresearchandtelatestwellandseismicdata,thisarticleanalyzesthedevelopmentcharacteristicsof faultsandtheinheritancetransfomationcharacteristicsofstructuralevolutionindiferentperidsoftheMeso-Cenozicerahe resultsindicatethatinthelateIndosinianperidofthestudyarea,underthecompresionfromsouthtonorth,NW-EWtrending thrustfaultsandwidegentlefoldswereformed,andtheinitialpaterofbasinevolutionbegantoform,withdiferencesgradualy emergingbetweenthenorthandsouth.ThefaultactivityduringtheYanshan-Himalayanperiodinheritedandtransformedearly thrustfaults.IntheearlyYanshanperiod,thecompresivestressgraduallyshiftedfromNStoNW,anddevelopednearNSand NNEcompressonalstrikeslipfaults;ThemdYanshanperiodischaracteredbyextensionalriftinginthecentralortgion, withthedevelopmentofreversestructures,whilethesoutherregionissubjectedtoerosion.InthelateYanshanperod,therewas overalluplift,thedevelopmentofthrustfaults,anderosion.TheearlyHimalayanperiodwascharacterizedbyNW-EStrending rifts,andtheMesozicfaultsunderwentanotherreversal,developingaserisofNE-NEtrendingextensionalstrikeslipfults.The ultimateformationof todaysmulti-facetedandmulti-directional faultsystemandcomplexandvariablebasinbasement.
0 引言
黄骅坳陷位于渤海湾盆地中北部,是中生代以来在多次构造运动控制下形成的复杂的含油气叠合盆地[1-2]。(剩余9965字)