地球科学进展 ›› 2001, Vol. 16 ›› Issue (4): 490 -495. doi: 10.11867/j.issn.1001-8166.2001.04.0490

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银—额盆地侏罗、白垩系油气超系统特征及其勘探方向
王新民 1,郭彦如 2,马龙 1,张虎权 1   
  1. 1.中国石油勘探开发研究院西北分院,甘肃 兰州 730020;   2.中国地质大学,北京 100083
  • 收稿日期:2000-11-20 修回日期:2001-01-12 出版日期:2001-08-01
  • 通讯作者: 王新民(1962-),男,甘肃省天水市人,博士,高级工程师,主要从事石油与天然气地质研究. E-mail:malong@mail.nwgri.com

YIN’E BASIN: CHARACTERS OF JURASSIC AND CRETACEOUS PETROLEUM SUPERSYSTEM AND PROSPECTING AREA

WANG Xinmin 1,GUO Yanru 2,MA Long 1,ZHANG Huquan 1   

  1. 1.Northwest Institute of Petroleum Geology, Lanzhou 730020,China;
    2.China University of Geosciences, Beijing 100083 ,China
  • Received:2000-11-20 Revised:2001-01-12 Online:2001-08-01 Published:2001-08-01

银—额盆地位于四大板块交汇拼合地带,发育于中生代板内拉分裂陷演化阶段,由一系列彼此分割相对独立的侏罗—白垩纪断陷湖盆群组成,发育典型的中生代侏罗、白垩系油气超系统。 研究表明侏罗系油气超系统(主要为中下侏罗统)分布局限,煤系烃源岩发育较差,热演化程度高,自身储盖组合欠佳,,因其与上覆下白垩统油气超系统的叠合,使得该油气超系统具有一 定的含油气勘探远景。白垩系(主要为下白垩统)油气超系统分布广泛,湖相烃源岩发育,储盖组合良好,成藏配置较佳,尤以上白垩统—第三系与下白垩统叠合的凹陷油气勘探前景最为乐观。 下白垩统油气超系统中最有利的勘探方
向位于多期叠合、埋藏较深的单断箕状凹陷的斜坡区。

Yin’e Basin, which evoluted from the Mesozoic intra-plate pull-apart depressions, locates in the suture zone of four plates and composed of a series of individual Jurassic- Cretaceous lacustrine basins, developed a typical Jurassic and Cretaceous petroleum supersystem. Study shows that the Jurassic supersystem(mainly middle and lower Jurassic), which is relatively limited in range and poor in coal source-rock and generation-reservoir-seal formation, is overlain by the lower Cretaceous supersystem and has prospecting of oil and gas,and that while as far as the Cretaceous supersystem(mainly lower Cretaceous)is concerned, its extension is basin-wide and it is rich in lacustrine source-rock and generation-reservoir-seal formation, the depressions with overlying formation of lower Tertiary and upper Cretaceous are especially favorable in prospecting. The most favorable prospecting area of lower Cretaceous petroleum supersystem located in the slope of single-faulted depression with deep covering and proper overlying.

中图分类号: 

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