石油学报

• 地质勘探 • 上一篇    下一篇

四川盆地大中型天然气田分布特征与勘探方向

马永生 1  蔡勋育 1  赵培荣 1,2  罗  毅 1,2  张学丰 3   

  1. 1.中国石油化工股份有限公司油田勘探开发事业部  北京  100728; 2. 中国地质大学地球科学与资源学院  北京  100083; 3. 北京大学石油天然气研究中心  北京  100871
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-05-25 发布日期:2010-05-25
  • 通讯作者: 马永生

Distribution and further exploration of the large-medium sized gas fields in Sichuan Basin

MA Yongsheng 1  CAI Xunyu 1  ZHAO Peirong 1,2  LUO Yi 1,2  ZHANG Xuefeng 3   

  • Received:1900-01-01 Revised:1900-01-01 Online:2010-05-25 Published:2010-05-25

摘要:

四川盆地是中国最早开展天然气勘探开发和综合利用的地区。经过50多年的工业性勘探开发,发现了27个大中型气田,建成了中国第一个超 100×108m3 产能的天然气生产基地。勘探及研究表明,四川盆地大中型气田主要集中分布在二叠系和三叠系,以孔隙型、裂缝—孔隙型气藏为主,并已形成了几个大型气田群。认识创新、思路创新和技术进步是四川盆地勘探发展的关键。通过总结四川盆地大中型气田的分布特征,进一步探讨了盆地勘探发展的方向,指出川东及川西的深层超深层、川东及川中陆相中浅层、山前带、嘉陵江组鲕滩和大型区域不整合等是下步勘探的重点领域。

关键词: 四川盆地, 大中型气田, 深层超深层, 山前带, 区域性不整合, 勘探领域

Abstract:

Sichuan Basin is the place in which natural gas was firstly explored and comprehensively utilized in China. 27 large-medium sized gas fields have been discovered and the gas production capacity more than 100×108m3 has been constructed on the basis of over 50 years of industrial exploration and production. The large-medium sized gas fields are mainly distributed in eastern and western Sichuan Basin, and the main reservoir is Permian and Triassic. The porous types of reservoir is porosity and porosity-fractured. Innovative understanding, creative ideas and developed technology are three key factors controlling the development of the exploration within the basin. This research summarizes the distribution characteristics of the large-medium sized gas fields,and some advises are proposed for further exploration in this basin. It is pointed out that the deep and super-deep reservoirs such as Permian and Triassic in west and east, middle-shallow reservoirs of Triassic continental deposit in east and middle, piedmont zone, Jialingjiang Formation oolitic shoals and regional unconformities are important regions to explore in Sichuan Basin.

Key words: Sichuan Basin, large-medium sized gas fields, deep and super-deep reservoirs, piedmont zone, regional unconformity, exploration region