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低孔渗油气富集区优质储层形成条件及相关问题

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  • (中国科学院兰州地质研究所,兰州 730000)
王多云(1957-),男,甘肃民勤人,研究员,主要从事含油气区沉积学、储层预测和油藏描述研究.

收稿日期: 2002-02-24

  修回日期: 2003-03-28

  网络出版日期: 2003-04-20

基金资助

中国科学院资源环境领域知识创新工程重要方向项目(编号:KZCX3-SW -128-04)资助

FORMING CON DITION OF HIGH-QUALITY RESERVOIR AND ITS RELATIVEPROBLEMS IN LOW POROSITY AND PERMEABILITY ENRICHMENT ZONE

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  • (Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou   730000, China)

Received date: 2002-02-24

  Revised date: 2003-03-28

  Online published: 2003-04-20

摘要

低孔低渗 (孔隙度一般小于 1 2 % ,渗透率大多在 1× 1 0 - 3μm2左右 )性质的碎屑岩作为储层的油气藏是我国中西部地区稳定克拉通盆地或者叠合盆地中最主要的油气藏类型。但是 ,通过近几年的勘探实践发现 ,在低孔低渗含油气区中 ,仍有具优质储集层的高产油气藏存在。从优质储层的构造、沉积和成岩等几个方面讨论了这些优质储层的形成条件、阐述了描述和识别优势储层的原则和方法基础。认为储层的原始物质组成和结构是影响其物性特征的最关键因素、先天母质条件是优质储层之本源 ,并认为从构造和沉积环境条件入手阐明优质储层的成因至关重要。

本文引用格式

王多云;郑希民;李风杰;王峰;刘自亮;王志坤;李树同; . 低孔渗油气富集区优质储层形成条件及相关问题[J]. 天然气地球科学, 2003 , 14(2) : 87 -91 . DOI: 10.11764/j.issn.1672-1926.2003.02.87

Abstract

Pertoleum accumulation of low porosity (is smaller than 12% in general)and perme ability (in mostly is 1×10-3μm2 or so)of fragmental rock which become s reservoir is the most primary types of pertoleum accumulations at stabilize cr atonic basin or superposed basin in center and west areas of our country. Howeve r it find that there are many prolific oil and gas accumulations which have high -quality reservoir sandstones in low porosity and permeability oil and gas zone s by the recently exploration. The authors discuss the forming condition of the  high-quality reservoirs from the structure, sediment and diagensis of high-qua l ity reservoirs formation and enumerate much element. Expound the principle and m ethod basis that describe and discriminate them. Authors believe that original c omposition and structure of reservoirs are the most crucial element which effect  the feature of physical property, congenital provenance condition is ultimate s ource of high-quality reservoir. It is important to explain their genetic from  tectonic and deposit environmental condition.

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