油气地质

齐家—鸳鸯沟地区沙河街组油气富集规律研究

  • 闫博 ,
  • 吕晓辉
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  • 东北石油大学
付广,1962 年生,男,教授,主要从事油气藏形成与保存条件研究。地址:(163318)黑龙江省大庆市东北石油大学地球科学学 院。电话:(0459)6504024。E-mail:fuguang2008@126.com

网络出版日期: 2011-12-20

基金资助

国家大型油气田及煤层气开发科技重大专项(编号:2011ZX05007-002)“大气田形成条件、成藏机制与富集规律研究”课题资助

Study on oil and gas enrichment rule of Shahejie Formation in Qijia-Yuanyanggou area

  • YAN Bo ,
  • LV Xiaohui
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  • Northeast Petroleum University, Daqing 163318, China

Online published: 2011-12-20

摘要

针对油气勘探中存在的油水关系复杂问题,采用油气藏解剖和油气分布与成藏条件之间的空间 匹配关系,对齐家—鸳鸯沟地区沙河街组油气富集规律及控制因素进行了研究,结果表明:齐家—鸳鸯沟 地区油气在纵向上主要分布在沙二段,平面上主要分布在Ⅲ 号台阶上,并以断层-岩性油气藏类型居多; 油气富集主要受到砂体储层是否发育、圈闭是否发育、断层侧向封闭性强弱、断裂后期活动性强弱4 个因 素的控制;不同层段油气富集的主控因素不同,沙二段、沙三1 亚段和沙四段圈闭不发育是造成失利井的 最主要原因,而沙三2 亚段和沙三3 亚段砂体储层不发育也是造成失利井的最主要原因。

本文引用格式

闫博 , 吕晓辉 . 齐家—鸳鸯沟地区沙河街组油气富集规律研究[J]. 岩性油气藏, 2011 , 23(6) : 1 -5 . DOI: 10.3969/j.issn.1673-8926.2011.06.001

Abstract

In viewof the problem that the relation between oil and water is complicated in oil and gas exploration, by dissecting oil and gas reservoirs and analyzing the matching relationship between oil and gas distribution and reservoir forming conditions, this paper studied the oil and gas enrichment rule and its controlling factors of Shahejie Formation in Qijia-Yuanyanggou area. The result shows that hydrocarbon mainly distributed in Sha 2 member in profile and step Ⅲ in plane, and most of the reservoirs are fault-lithologic reservoirs. The enrichment of oil and gas is mainly controlled by the development of sand reservoir and traps, lateral sealing of faults and fault activity during late period. The enrichment of oil and gas in different layers has different controlling factors. The nondevelopment of traps of Sha 2, submember 1 of Sha 3 and Sha 4 member is the main cause for failure wells, while the nondevelopment of sand reservoir of sub-member 2 and sub-member 3 of Sha 3 member is the main reason for failure wells.

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