期刊文献+

辽河海南洼陷沙一二段地震相精细研究 被引量:7

Fine study of seismic facies in the first and second members of Shahejie formation in the Hainan sag in Liaohe basin
下载PDF
导出
摘要 海南洼陷E3s1+2段相变频繁、多物源叠置,地震相划分多解性强,沉积相类型及砂体分布不明确。根据三维高分辨率地震资料的地震内部反射结构、构型和外部形态信息进行地震相分区,采用有井区钻井与地震结合、无井区地震与地质背景结合的"实时控制"型地震相划分方法,确定研究区沉积相类型和有利砂体分布范围。结果表明:在海南洼陷共识别10种地震相,主要发育4种典型地震相:下超型前积地震相、(亚)平行席状地震相、透镜状地震相和楔状地震相。研究区主要发育3种沉积体系:辫状河三角洲—滨浅湖、扇三角洲—滨浅湖和重力流—深湖沉积体系。鸳鸯沟断层附近E3s2段发育的浊积砂体和双南地区E3s1+2段水进域发育的重力流砂体,具备良好的形成岩性圈闭的条件。 The seismic facies division exists strong multiplicity due to frequent facies changing and overlap of multi-sources in Hainan sag.In this research,the seismic facies division was analyzed by using the seismic reflection structure,configuration and shape information of the new 3Dseismic data of high resolution.At the same time,the corresponding sedimentary facies and favorable sand bodies distribution range were determined with the seismic facies division method of the ' simultaneously control' model,which combines wells with seismic in drilling areas and combines seismic data with geological background in the areas without drilling.The results show:A total of 10 different kinds of seismic facies was identified,and 4kinds of facies as followed were dominated:Downlap foreset seismic facies,(sub)parallel sheet seismic facies,lenticular seismic facies and sphenoid seismic facies.The research area mainly developed 3kinds of depositional systems:Braided river delta-shore shallow lake depositional system,fan delta-shore shallow lake depositional system and gravity current-deep lake depositional system.The turbidity current sand bodies whose around the Yuanyanggou fault,deposited in the second member of Shahejie formation and the gravity current sand bodies whose located in the Shuangnan area,deposited in transgressive system tract of the first and second members of Shahejie formation,have favorable conditions of forming lithological trap.
出处 《东北石油大学学报》 CAS 北大核心 2016年第4期63-73,120,共12页 Journal of Northeast Petroleum University
基金 国家科技重大专项(2016ZX05006-005)
关键词 “实时控制”型 地震相 沉积相 沉积体系 有利砂体分布范围 海南洼陷 辽河盆地 'simultaneously control' model seismic facies sedimentary facies depositional system favourable sand bodies distribution range Hainan sag Liaohe basin
  • 引文网络
  • 相关文献

参考文献20

二级参考文献217

共引文献791

同被引文献93

引证文献7

二级引证文献33

;
使用帮助 返回顶部