西南石油大学学报(自然科学版) ›› 2004, Vol. 26 ›› Issue (6): 13-16.DOI: 10.3863/j.issn.1000-2634.2004.06.004

• 地质勘探 • 上一篇    下一篇

川西三套成藏系统及勘探研究

符晓
  

  1. 中石化西南石油局,四川德阳618000
  • 收稿日期:2003-12-13 修回日期:1900-01-01 出版日期:2004-12-20 发布日期:2004-12-20
  • 通讯作者: 符晓

THREE FORMING OIL POOL SYSTEMS AND EXPLORATION RESEARCH IN WEST SICHUAN

Fu Xiao   

  1. Southwest Branch of SINOPEC, Deyang Sichuan 618000, China
  • Received:2003-12-13 Revised:1900-01-01 Online:2004-12-20 Published:2004-12-20
  • Contact: Fu Xiao

摘要: 川西地区油气勘探,已在前陆盆地“前陆盆地冲断层片、坳陷、东斜坡”三个带上,发现数十个油气田,根据烃源岩类型和圈闭特征,结合该区地质结构、地史发展等资料,将川西地区近10 000 m沉积盖层中的含油气层系,由下至上划分为:海相含油气系统、海陆交互相含油气系统及陆相含油气系统。峨眉地裂运动、印支及燕山旋回,分别铸造了三大系统的物质基础和形变雏形,喜山运动对各系统进行了不同程度的改善、破坏和重组。对各系统在盆地三构造单元的分布及勘探思路进行了讨论。
      

关键词: 前陆盆地, 含油气系统, 海相, 海陆交互相, 陆相

Abstract: Based on the petroleum exploration, several tens oil and gas fields have been discovered in thrust fault films of forland basins, depressions and eastern slope of western area of Sichuan. According to types of source rocks and trap property, combined with formations’s development of geatectonis and
geohistory of area, near 10000 meters sedimentary overlaying formation can be divided into three oil-gas bearing strata:sea facies oil bearing system;sea-land interbedding facies oil-gas bearing system and land facies oil-gas bearing system .The material bases and shape distortional embryively for each system have been formed by Emei structure (or Dongulu) movment of upper
Permian, Yinzh and yanshan cycles of Mesogoie era respectively. Three systems have been improved, destroy and organiged in varying degrees by Xishan movement of Poleogene. In this paper, three structure units distribution and exploration thoughts of each system in basin have been discussed.

Key words: fore-land basin, oil-gas bearing system, sea facies, sea-land interbedding facies, land facies

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