石油与天然气地质 ›› 2006, Vol. 27 ›› Issue (3): 289-294.doi: 10.11743/ogg20060302

• 论文 • 上一篇    下一篇

从四川盆地解读中国南方海相碳酸盐岩油气勘探

冉隆辉, 谢姚祥, 王兰生   

  1. 中国石油天然气股份有限公司, 西南油气田分公司, 四川, 成都, 610051
  • 收稿日期:2006-05-24 出版日期:2006-06-25 发布日期:2012-01-16

Understanding exploration of marine carbonate reservoirs in South China through Sichuan basin

Ran Longhui, Xie Yaoxiang, Wang Lansheng   

  1. Southwest Oil and Gas Field Company, PetroChina, Chengdu, Sichuan 610051
  • Received:2006-05-24 Online:2006-06-25 Published:2012-01-16

摘要:

四川盆地海相油气具有气多油少,油气层纵横向叠置展布,气田规模大小不一,储层总体致密、但不乏优质储层,油气田圈闭类型多样、以背斜圈闭为主5个鲜明的地质特点。在此基础上,提出了具有叠合盆地性质的海相碳酸盐岩发育区,克拉通沉积时期古隆起的形成与发展,准确查明海相储层分布和目的层局部构造地腹形态,坚持有目的层、不唯目的层、重在发现的重要技术原则和发展先进实用的勘探技术等影响海相油气勘探成效值得重视的5个问题。

关键词: 海相碳酸盐岩, 油气勘探, 四川盆地

Abstract:

Marine carbonate reservoirs in Sichuan basin are characterized by 5 distinct geological features,i.e.there is more gas than oil,the reservoirs are laterally and vertically superimposed,the gas pools have different sizes,there are plenty of good reservoirs though they are relatively tight as a whole,and there are various trap types but dominated by anticlinal traps. Five key problems influencing exploration of marine carbonate reservoirs that should be highlighted are presented in this paper,i.e.the development zone of marine carbonates with the features of superimposed basin,the formation and evolution of palaeohighs in the process of deposition in the craton;accurate identification of the distribution of marine carbonate reservoirs and the subsurface geometry of local structures in the formations of interest,the significant technical principles of insisting on targets but not solely on the targets,and focusing on discovery of oil and gas;as well as development of practical and advanced exploration technologies.

Key words: marine carbonates, petroleum exploration, Sichuan basin

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