石油与天然气地质 ›› 2001, Vol. 22 ›› Issue (2): 161-164.doi: 10.11743/ogg20010217

• 油气空间 • 上一篇    下一篇

东濮凹陷沙三3-4亚段层序地层与沉积体系分析

李健, 王德仁, 白兴盈   

  1. 中国石化中原油田分公司勘探开发科学研究院, 河南濮阳457001
  • 收稿日期:2001-02-26 出版日期:2001-06-25 发布日期:2012-01-16

DEPOSITIONAL SYSTEM AND SEQUENCE STRATIGRAPHY OF S33-4 SUBMEMBER IN DONGPU DPERESSION

Li Jian, Wang Deren, Bai Xingying   

  1. Research Institute of Exploration and Development, Zhongyuan Oilfield Compang, SINOPEC, Puyang, Henan
  • Received:2001-02-26 Online:2001-06-25 Published:2012-01-16

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摘要：

东濮凹陷沙三3-4亚段可划分为两个Ⅲ级层序,每个Ⅲ级层序都可划分为低位体系域、高位体系域.湖侵.湖退体系域.低位体系域主要发育低位三角洲沉积体系、低位扇沉积体系、千盐湖沉积体系.高位体系域主要发育高位三角洲沉积体系、高位湖底扇浊积砂沉积体系、辫状河沉积体系-浊积砂沉积体系.湖侵-湖退体系域主要发育湖泊扇三角洲沉积体系、辫状河沉积体系、湖退-湖进三角洲沉积体系、滩坝沉积体系.低位三角洲砂体、低位扇砂体是油气勘探最有利的砂体,其次是高位三角洲砂体、高位湖底扇砂体、辫状河砂体、扇三角洲砂体.

关键词: 沙三3-4亚段, Ⅲ级层序, 体系域, 沉积体系, 砂体

Abstract:

S33-4 submember of Dongpu Depression can be divided into two Ⅲ-grade sequences. Each of them consists of lowstand system tract, highstand system tract and lacustrine transgression-regression system tract. Low stand delta depositional system, lowstand fan depositional system and dry brine lake depositional system are mainly developed in the lowstand system tract. In the highstand system tract, highstand delta depositional system, highstand sublacustrine fanturbidite sand depositional system arid braided river depositional system-turdidite sand depositional system developed well. In the lacustrine transgression-regression system tract, lacustrine fan-delta depositional system, braided river depositional system, lacustrine transgression-regression delta depositional system and beach bar depositional system developed well. Low stand delta sand body and lowstand fan sand body are the most favorable ones for oil and gas exploration, and highstand delta sand body, highstand sublacustrine fan sand body, braided river sand body and fan-delta sand body are secondary.

Key words: S33-4 submember, Ⅲ-grade sequence, system tract, depositional system, sand body

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