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ID:46303303
大小:2.18 MB
页数:8页
时间:2019-11-22
《开鲁盆地陆东凹陷九佛堂组-沙海组地震相研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、2013年9月,第l9卷,第3期,544—551页高校地质学报September2013,Vo1.19,No.3,P.544—551GeologicalJournalofChinaUniversities开鲁盆地陆东凹陷九佛堂组一沙海组地震相研究谢庆宾,刘明洁,陈菁萍,王鹏,白鲁山41.中国石油大学(北京)地球科学学院,北京102249;2.中国石化西北油气田分公司勘探开发研究院,乌鲁木齐830013;3.中国石油东方地球物理公司勘探开发研究院,涿州072750;4.中国石油辽河油田勘探开发研究院,盘锦124010
2、摘要:开鲁盆地陆东凹陷是辽河油田的外围探区,依据地震反射终止关系,结合区域地质背景,将陆东凹陷下白垩统的九佛堂组一沙海组划分成2个地震层序,即九佛堂层序和沙海层序。利用地震反射内部结构和外部几何形态,结合地震反射同相轴的振幅和连续性等参数,在九佛堂层序和沙海层序内识别出平行席状、亚平行席状、楔状、前积、杂乱、透镜状共6种地震相,并对其特征进行了描述。各种地震相平面分布具有差异性、纵向上具有继承性和演化性。经过综合解释,建立地震相与单井沉积相之间的响应关系,把地震相转化为沉积相。以湖泊沉积理论为指导,建立目的层各层序
3、地震相一沉积相模式,结果表明,目的层主要发育扇三角洲、近岸水下扇、浊积扇以及湖泊等沉积相。关键词:地震层序;地震相;沉积相;陆东凹陷;开鲁盆地中图分类号:P618.13文献标识码:A文章编号:1006—7493(2013)03—544-08SeismicFaciesResearchoftheJiufotangFormationandShahaiFormationinLudongDepression,KailuBasinXIEQingbin,LIUMingjie,CHENJingping,WANGPeng。,BAIL
4、ushan1.CollegeofGeosciences,ChinaUniversityofPetroleum(Beijing),Beijing102249,China;2.ResearchInstituteofExplorationandDevelopment,NoahwestoilfieldCompany,Sinopec,Wulumuqi830013,China;3.ResearchInstituteofExplorationandDevelopment,BureauofGeophysicalProspectin
5、g,PetroChina,Zhuozhou072750,China;4.ResearchInstituteofExplorationandDevelopment,LiaoheOilfieldCompany,PetroChina,Panjin124010,ChinaAbstract:LudongDepressionistheperipheralexploratoryareaofLiaoheOilfieldCompany.Basedontheseismicreflectionterminationrelationshi
6、pandtheregionalgeologicalbackground,theJiufotangFormationandShahaiFormationinLudongDepressioncanbedividedintotwoseismicsequences,i.e.,theJiufotangsequenceandshahaisequence.Accordingtotheinternalreflectiontextureandexternalgeometricconfigurationandincombination
7、withtheparametersofamplitudeandcontinuity,sixseismicfaciesareidentifiedinthetargetsequencesofthestudyarea,includingparallelsheet,sub—parallelsheet,wedgeshaped,foreset,unorganizedandlenticularseismicfacies.Andtheircharacteristicsaredescribedindetail.Theseseismi
8、cfaciesshowvariationsinhorizontaldistributionandaresuccessiveandevolutionaryvertically.Seismicfaciesarecorrelatedtosedimentaryfaciesthroughacomprehensiveinterpretation.Theseismic—s
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