天然气地球科学 ›› 2011, Vol. 22 ›› Issue (1): 1–7.doi: 10.11764/j.issn.1672-1926.2011.01.1

• 非常规天然气 •    下一篇

四川盆地元坝地区自流井组页岩气成藏条件

郭彤楼, 李宇平, 魏志红   

  1. 中国石油化工股份有限公司,四川 成都 610041
  • 收稿日期:2010-09-21 修回日期:2010-12-10 出版日期:2011-02-10 发布日期:2011-02-10
  • 通讯作者: 郭彤楼guotl.ktnf@sinopec.com E-mail:guotl.ktnf@sinopec.com
  • 作者简介:郭彤楼(1965-),男,江苏邳州人,教授级高级工程师,主要从事油气地质研究与勘探.

Reservoir-Forming Conditions of Shale Gas in  Ziliujing Formation of Yuanba Area in Sichuan Basin

GUO Tong-Lou, LI Yu-Ping, WEI Zhi-Hong   

  1. SINOPEC Exploration Southern Company, Chengdu 610041,China
  • Received:2010-09-21 Revised:2010-12-10 Online:2011-02-10 Published:2011-02-10

摘要:

按照页岩气勘探思路和成藏特点,四川盆地元坝地区一批探井针对自流井组泥页岩录取了资料,其中3口井测试获得了工业气流。研究表明,元坝地区自流井组形成于浅湖—半深湖环境,暗色泥页岩厚度较大,有机碳含量高,有机质热成熟度适中,处于生气高峰期。泥页岩矿物成分中石英含量普遍在60%以上,粘土含量在30%以下,泥页岩含气量高,具备页岩气形成和勘探的基本条件,是页岩气勘探的有利层系。

关键词: 页岩气, 自流井组, 油气成藏, 元坝地区, 四川盆地

Abstract:

According to the ideas of exploration and the reservoir accumulation characteristics of shale gas,we have collected shale gas data in Ziliujing Formation from a batch of exploratory wells in Yuanba area of Sichuan basin. And industrial gas flow has been discovered in three wells of the exploratory wells. Research shows that Ziliujing Formation in Yuanba area is formed in shallow lake-semi-deep lake environment. Thick dark shale,high content of organic carbon and moderate thermal maturity of organic matter which is at the peak of gas production are developed in Ziliujing Formation. Moreover,quartz content is generally more than 60% in the mineral composition of shale, while clay content is below 30%. Gas content is high in shale of Ziliujing Formation, which is the basic condition for the formation and exploration of shale gas. And Ziliujing Formation is the favorable strata for the shale gas exploration.

Key words: Shale gas, Ziliujing Formation, Reservoir accumulation, Yuanba area, Sichuan basin.

中图分类号: 

  • TE132.2

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