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中国中西部前陆盆地生储盖组合及成藏基本要素匹配分析

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  • (中国石油勘探开发研究院,北京100083)
洪峰(1962-),男,广东遂溪人,高级工 程师,主要从事油气成藏研究.

收稿日期: 2006-08-24

  修回日期: 2006-12-18

  网络出版日期: 2008-06-20

基金资助

国家科技攻关项目(编号:2001BA605A-06);国家自然科学基金项目(编号:40102011 -D0207)联合资助.

A STUDY ON THE SOURCE- RESERVOIR-SEAL ASSOCIATIONS AND MATCHING OF HYDROCARBON ACCUMULATION FACTORS IN THE FORELAND BASINS IN CENTRAL-WESTERN CHINA

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  • (Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China)

Received date: 2006-08-24

  Revised date: 2006-12-18

  Online published: 2008-06-20

摘要

前陆盆地构造特点决定了前陆盆地具有一套特定的成藏地质条件,其构造和沉积控制了生储盖层的发育和储盖组合类型;受多期构造运动的影响和由于多种盆地类型叠加,中国中西部前陆盆地沉积层序多样化,具有多套储盖组合.根据构造和沉积演化特点,在中国中西部前陆盆地划分出了3大套储盖组合,即下部生储盖组合、中部生储盖组合和上部储盖组合,其中下、中部生储盖组合以自生自储组合类型为主,生储盖层相互叠置,具有好的空间配置,但时间匹配较差;上部储盖组合主要为下生上储型,空间的匹配上欠佳,但生烃期、储层成岩阶段和盖层有效封盖等因素在时间匹配上最佳,是时效最佳匹配组合类型,目前发现的油气藏多赋存于该组合。

本文引用格式

洪 峰,宋 岩,柳少波,赵孟军,秦胜飞,傅国友 . 中国中西部前陆盆地生储盖组合及成藏基本要素匹配分析[J]. 天然气地球科学, 2007 , 18(1) : 27 -31 . DOI: 10.11764/j.issn.1672-1926.2007.01.27

Abstract

Structures in foreland basins form a specific geologic condition of hydrocarbon accumulation. The source-reservoir-seal associations are controlled by tectoni c and sedimentary evolvement. Sedimentary series and source-reservoir-seal ass ociations in the foreland basins in central-western China are various, affected by several times tectonization and the superposition of several types of origin al sedimentary basins. According to the sedimentary structure evolvement, three types of source-reservoir-seal associations are divided: Lower source-reservo ir-seal associations, Middle source-reservoir-seal associations and Upper res ervoir-seal associations. The type of self-generating and self-preserving res ervoir is mainly in the Lower and Middle source-reservoir-seal associations, b ecause of the superposed source-reservoir-seal rocks, and the Lower and Middle source-reservoir-seal associations have the best matching of space. The type of lower-generating and upper-reservoiring is mainly in the Upper reservoir-s eal associations, as it has the best matching of hydrocarbon generation stage, s andstone diagenesis stage and effective sealing time. The Upper reservoir-seal associations have the best matching of time, where a large number of oil-gas po ols have been discovered presently.

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