石油与天然气地质 ›› 1996, Vol. 17 ›› Issue (2): 134-139.doi: 10.11743/ogg19960208

• 论文 • 上一篇    下一篇

川东北二叠、三叠系天然气勘探方向

龙胜祥, 曾涛, 李检龙   

  1. 地质矿产部石油地质综合大队, 湖北荆沙 434100
  • 收稿日期:1995-05-02 修回日期:1995-09-06 出版日期:1996-06-25 发布日期:2012-01-16
  • 基金资助:

    “八五”国家攻关专题(85-102-01-05-04)部分成果

GAS EXPLORATION TARGETS OF PERMO-TRIASSIC IN NORTHEASTERN SICHUAN

Long Shengxiang, Zeng Tao, Li Jianlong   

  1. Comprehensive Research Institute of Petroleum Geology, MGMR, Jingsha, Hdei
  • Received:1995-05-02 Revised:1995-09-06 Online:1996-06-25 Published:2012-01-16

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摘要：

川东北地区二叠、三叠系天然气成藏地质条件优越,已找到沙罐坪等多个气田和含气构造,是重点勘探区。用天然气资源评价专家系统和模糊集合法分别对下二叠统、上二叠统和中、下三叠统共88个圈闭进行资源评价,并加以综合分析,然后,应用勘探决策系统对具Ⅰ、Ⅱ级有利含气的21个圈闭构造进行了勘探决策分析,提出了两套勘探部署方案。

关键词: 川东北, 天然气, 圈闭评价, 专家系统, 决策分析, 部署方案

Abstract:

Northeastern Sichuan Basin has fevourable geological condition to form gas pools in Permian and Triassic. A number of gas fields or gas-bearing structures have been discovered. This region is one of the important gas exploration area. This paper discribes how to use the gas resource assessment expert system and fuzzy set analysis method to appraise the gasbearing probability of 88 traps in Lower Permian, Upper Permian and Lower-Middle Triassic in the study area. The traps were analysed and divided into four levels of gas-bearing traps. Finally, exploration decision analysis system was adopted to analyse the 21 structures of Ⅰ and Ⅱ level traps, and tow exploration plans are put forward.