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时间:2020-06-01
《松辽盆地南部西斜坡高分辨率层序地层研究.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、2013年lO月大庆石油地质与开发Oct..2013第32卷第5期PetroleumGeologyandOilfieldDevelopmentinDaqingV01.32No.5DOI:10.3969/J.ISSN.1000—3754.2013.05.003松辽盆地南部西斜坡高分辨率层序地层研究李如一王凤来(1.大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712;2.大庆油田有限责任公司勘探事业部,黑龙江大庆163453)摘要:根据钻井、测井及地震资料,引入沉积转换面概念,应用以多级次基准面旋回为参照面的高分辨层序地层学理论与方法,对松辽盆地南部西斜坡前缘带的
2、青山口组一姚家组地层进行了层序地层研究。共识别出4个长期基准面旋回、8个中期基准面旋回,建立了层序划分方案,在连井剖面的层序地层对比基础上建立了地层格架;认为青山口组底部层序为盆地快速水进时期,向上至青三上层序为水退时期,至姚家组层序为另一水进初始阶段;各旋回叠加样式随基准面升降呈现有规律变化,层序格架分布样式也对油气运聚具有显著影响。关键词:松辽盆地;西斜坡;坳陷期;高分辨率;层序地层;基准面旋回中图分类号:TEl21.3文献标识码:A文章编号:1000—3754(2013)05—0012—05HIGH—RESoLUTIoNSEQUENCESTRATIGRAPHIC
3、STUDYFoRWESTSLoPEoFSoUTHSoNGLIAoBASINLIRuyi,WANGFenglai(1.ExplorationandDevelopmentResearchInstituteofDaqingOilfieldCompanyLtd.,Daqing163712,China;2.ExplorationDepartmentofDaqingOieldCompanyLtd.,Daqing163453,ChinaJAbstract:Basedonthedrilling,wellloggingandseismicdata,throughintroducingt
4、heconceptofdepositionalconversionsurfaceandapplyingthetheoryandmethodofhigh—resolutionsequencestratigraphytakingthemulti—gradedatumlevelcyclesasthereferringinterfaces,thesequencestratigraphicstudiesontheQingshankouForma—tion—YaojiaFormationinthefrontbehsofWestSlopeofSouthSongliaoBasinar
5、econducted.Fourlong—termbaselevelcyclesandeightmedium—termbaselevelcyclesarerecognizedaltogether,andthenthesequenceclassifyingprogramsareestablished,onthebasisofthesequencestratigraphiccontrastofthewell—commingledprofiles,thestratigraphicframeworkisbuilt;thestudiesshowthatQingshankou—Fo
6、rmationbottom/lowersequencedepositsintheperiodoffastwater.transgressionandtheuppersequenceofQingshankouFormationbelongstotheperiodofthewater.regression,andmoreovertheupwardYaojia-Formationsequenceislocatedintheinitialstageofanotherwa—ter.transgression;besidesthestackedpatternsofeachcycl
7、echangeregularlywiththeriseandfallofthelevel,thedistributiontypesofsequenceframeworkalsopossessremarkablyinfluencesontheoilandgasmigrationandaccu—ml11ation.收稿日期:2013—01—10改回日期:2013-06—03基金项目:国家油气重大专项“大中型气田盖层定量评价及断层封堵作用”(2011ZX05007)。作者简介:李如一,女,1980年生,工程师,从事石油地质研究工作。E—mail:liruy
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