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ID:46540078
大小:2.16 MB
页数:8页
时间:2019-11-25
《金湖凹陷金南-腰滩地区戴南组一段高分辨率层序构型与砂体展布特征》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19卷,第3期,536—543页高校地质学报September2013,Vo1.19,No.3,P.536—543GeologicalJournalofChinaUniversities金湖凹陷金南一腰滩地区戴南组一段高分辨率层序构型与砂体展布特征臧素华,花彩霞中国石油化X-股份有限公司华东分公司石油勘探开发研究院,南京210011摘要:应用高分辨率层序地层学理论、技术方法,综合地震、钻井岩芯及测井资料对金湖凹陷金南一腰滩地区戴南组一段进行了高分辨率层序地层研究,识别出层序界面和洪泛面两类转换面,并进一步划分出1个长期、2-3个中期及4-7个短期旋
2、回层序,短期、中期旋回层序以向上“变深”型和向上“变深”复“变浅”型为主,向上“变浅”型不发育,长期旋回层序则以向上“变深”复“变浅”为主。在此基础上,依据旋回等时对比法则,建立了研究区戴南组一段层序地层格架,对各中期旋回层序砂体进行了等时追踪对比,发现MSC3时期金南地区吕庄构造带及腰滩石港断裂上升盘沉积缺失,砂体主要沿金南工区西部及石港断裂下降盘呈条件状展布,地层超覆特征明显,此类砂体是隐蔽油藏勘探的有利目标。关键词:金湖凹陷;金南一腰滩地区;戴南组一段;高分辨率层序地层中图分类号:P539.2文献标识码:A文章编号:1006—7493(2013)03—536—
3、08TheSequenceArchitectureandCharacteristicsofSandbodyDistributionoftheFirstMemberoftheDainanFormationinJinnan—YaotanBlockofJinhuDepreesionZANGSuhua,HUACaixiaResearchInstituteofPetroleumExplorationandDevelopment,EastChinaCompany,SINOPEC,Nanjing210011,ChinaAbstract:Byusingthehighresoluti
4、onsequencestratigraphytheory,thesequencestratigraphyforthefirstmemberofDainanFormationinJinnan—YaotanblockofJinhuDepressionisanalyzedtogetherwithcomprehensiveresearchofseismic.coreandwellloggingdata.Twokindsoftransitionalsurface,sequenceboundary,andfloodingsurfacearerecognized.Andtheai
5、medsegmentisdividedintoonelong—termcycle,twotothreeintermediatetermcyclesandfourtosevenshort—termcycles.Themaintypesoftheshortandintermediatetermareupward—deepening,andupward—deepeningthentoupward—shallowing.Thelongtermisupward—deepeningthentoupward—shallowing.Basedontheprincipleofisoc
6、hroniccorrelation,thesequencestratigraphicframeworkofthefirstmemberofDainanFormationisestablished,andthesandbodiesofintermediatetermcyclesaretrackedandcorelated.TheresultshowsthattheupsideofShigangFaultandtheLvzhuangtectoniczonearelossoftheMSC3,thesandbodiesaremainlydistributedinthewes
7、tofJinnanareaandthedownsideofShigangFault,thecharacterofstratigraphiconlapisapparent.Thiskindofsandbodyisaveryfavorabletargetforsubtlereservoirexploration.Keywords:JinhuDepression;Jinnan-Yaotan;thefirstmemberoftheDainanFormation;highresolutionsequencestratigraphyFirstauthor:ZANGSuhua
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