非常规天然气:致密砂岩气

潍北凹陷致密气藏的成藏条件研究

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  • 1.石油大学石油天然气成藏机理教育部重点实验室,北京 102249;2.石油大学(北京)盆地与油藏研究中心,北京 102249;3.中石化胜利油田地质科学研究院,山东 东营 257015
曾溅辉(1962-),男,江西新干人,教授,博士生导师,主要从事油气运移和聚集、盆地流体研究.

收稿日期: 2004-08-17

  修回日期: 2004-09-15

  网络出版日期: 2004-12-20

基金资助

中石化“十五”重点科技攻关项目(编号:p01039)资助.

A STUDY ON FORMATION  CONDITIONS OF TIGHT GASRESERVOIR IN WEIBEI SAG

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  • 1.Key Laboratory for Petroleum Entrapment  Mechanism of Ministry of Education,Beijing 102249, China;
    2.Basin & Reservoir Research Center, University of Petroleum, Beijing 102249, China;
    3.Academy of Geological Sciences, Shengli Oil Field Ltd. Company, SINOPEC, Dongying 257015, China

Received date: 2004-08-17

  Revised date: 2004-09-15

  Online published: 2004-12-20

摘要

潍北凹陷的区域地质和石油地质研究结果表明,潍北凹陷具备了形成致密气藏的构造、沉积、烃源岩、储层、盖层和圈闭条件,其中最有利的地区和层系为北部洼陷带埋深大于3000m的孔店组二段砂岩。通过对大地构造背景和石油地质条件相似的潍北凹陷和东濮凹陷对比研究发现,这两个凹陷的致密气藏形成条件存在着差异,这些差异主要表现在烃源岩、储层和盖层条件上,其中东濮凹陷致密气藏的形成条件明显优于潍北凹陷。

本文引用格式

曾溅辉, 蔡进功,宫秀梅 . 潍北凹陷致密气藏的成藏条件研究[J]. 天然气地球科学, 2004 , 15(6) : 622 -627 . DOI: 10.11764/j.issn.1672-1926.2004.06.622

Abstract

Research results  of regional geology and petroleum geology of Weibei sag suggest that  there are good formation conditions for tight gas reservoir in structure, sedimentary, source rock, reservoir rock, caprock and trap conditions in Weibei sag. The sandstones under the depth of 3 000 m of the second member of Kongdian formation in  north sag are the most favourable for the formation of tight gas reservoirin Weibei sag. Based on the compassion researches in regional geology and petroleum  geology between Weibei sag and Dongpu sag which are similar in tectonic basis and petroleum geology each other, the formation conditions for tight gas reservoir  in Weibei sag are different from that in Dongpu sag. The differences of the formation conditions for tight gas reservoir between Weibei sag and Dongpu sag are  source rock, reservoir rock and caprock. The formation conditions for tight gas reservoir in Dongpu sag are better than that in Weibei sag.

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