石油与天然气地质 ›› 2000, Vol. 21 ›› Issue (2): 144-147.doi: 10.11743/ogg20000213

• 油气空间 • 上一篇    下一篇

天然气成藏模式与勘探方法──以川西天然气藏为例

谢泽华   

  1. 西南石油局第二地质大队,四川自贡643013
  • 收稿日期:1999-10-18 出版日期:2000-06-25 发布日期:2012-01-16

POOL-FORMING MODELS AND EXPLORATION METHOD OF NATURAL GAS——TAKE WEST SICHUAN GAS POOLS AS AN EXAMPLE

Xie Zehua   

  1. The Second Geological Brigade of Southwest Ptroleum Bureau, Zigong, Sichuna
  • Received:1999-10-18 Online:2000-06-25 Published:2012-01-16

摘要:

天然气与石油的成藏机理差异较大,因此不能盲目套用石油的成藏机理,研究天然气。“分散气储,超压运移,储集体成藏,多级补给”是天然气成藏的普遍模式。在天然气勘探中,尤其应重视储集体的发育情况,扭张性裂隙发育区易形成天然气储集体。由于天然气主要分布于储集体中,所以在钻孔设计上应采用多侧向水平井,施工中采用欠平衡钻进。

关键词: 天然气, 成藏模式, 储集体, 水平井

Abstract:

Gas pool-forming mechanism differs greatly from oil pool-forming mechanism.Separate reservation,superpressure migration,reservoir formed pool and multi grade supply is the popular gas pool-forming model.Transtensional fracture developed area is favourable for the formation of gas reservoirs.To explore gas resources,one should adopt multi lateral horizontal well in drilling-planning and unbalance drilling in operation.

Key words: natural gas, pool-forming moedl, reservoir, horizental well

中图分类号: