SEDIMENTARY PATTERN OF PROTOTYPE BASIN IN THE DEPOSITION PERIOD OF LAIYANG FORMATION AND THE ADVANTAGEOUS AREAS FOR OIL AND GAS EXPLORATION OF JIAOLAI BASIN

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摘要 LaiyangformationofJiaolaiBasinisthetargetstratumforoilandgasexploration.Bymeasuringseveralfieldsections,theauthorsfindthatLaiyangformationrevealsthewholeprocessesfromdevelopmenttodeathofthelakebasinanditssedimentaryfaciesdifferindifferentstructurallocations.AnalysesaboutsedimentaryfaciesandpaleocurrentorientationsinassociationwithresearchesaboutthepositivetectonicunitssuchasDayetouhorsebackandChaigouhorstindicatethatLaiyangsagisarelativelyindependentsedimentaryunitthatshowsgreatwaterdepthtypicalofdeeplakeorsemideeplakeandwascontrolledbyWulongcunfaultduringthedepositionperiodofLaiyangformation.ItssedimentsmainlyoriginatedfromJiaobeiupliftareaandDayetouhorseback.Gaomi-Zhuchengsagwasafast-filledbasincontrolledbyWurongfaultandYishufaultzone,beinghighinthenortheastandlowinthenorthwestandcharacterizedbythedevelopmentofpluvialfaciesandfluvialfaciesinmostareas,andwiththedevelopmentoflakefaciesbeinglimitedtolocallow-lyingregions.Selectionofadvantageoushydrocarbonreservoirareasforexplorationpurposemainlyreliesonthesedimentationpatternofprototypebasinandconservationconditions.Thecentral-westareaofLaiyangsagcoveredbyoverlyingLaiyangformationisthemostadvantageousexplorationarea.
机构地区 不详
出版日期 2004年02月12日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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