西南石油大学学报(自然科学版) ›› 2008, Vol. 30 ›› Issue (6): 40-44.DOI: 10.3863/j.issn.1000-2634.2008.06.010

• 地质勘探 • 上一篇    下一篇

四川盆地须家河组气藏成藏特点及勘探前景

谢继容1 张健2 李国辉1 唐大海1 彭军3   

  1. 1.中国石油西南油气田公司勘探开发研究院,四川 成都 610511; 2.中国石油西南油气田公司勘探处,四川 成都 610511;3.西南石油大学资源与环境学院,四川 成都 610500
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-12-20 发布日期:2008-12-20

EXPLORATION PROSPECT AND GAS RESERVOIR CHARACTERISTICS OF XUJIAHE FORMATION IN SICHUAN BASIN

XIE Ji-rong1 ZHANG Jian2 LI Guo-hui1 TANG Da-hai1 PENG Jun3   

  1. 1.Exploration and Development Research Institute,Southwest Oil & Gas Field Company,CNPC,Chengdu Sichuan 610511,China;2.Exploration Department of Southwest Oil & Gas Field Company,CNPC,Chengdu Sichuan 610511,China;3.Resource and Environment Institute,Southwest Petroleum University,Chengdu Sichuan 610500,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-12-20 Published:2008-12-20

摘要: 阐述了四川盆地须家河组气藏的成藏特点,指出须家河组是在上扬子地台西缘海相碳酸盐岩台地基础上形成的一套含煤碎屑岩地层,由于其独特的生储盖组合,是四川盆地最具勘探潜力的层系之一。须家河组气藏纵向上发育了3套“三明治”式的成藏组合,岩性气藏、构造-岩性复合气藏为主要的存在形式,具有成藏组合多,含水饱和度高,气水关系复杂,气藏类型多样,受烃源、储层、古今构造及前陆盆地结构等多元叠合控制的特点。认为四川盆地须家河组成藏条件及其匹配总体较好,存在5个天然气有利富集区带,具有较好的勘探前景。

关键词: 须家河组, 气藏, 成藏特征, 勘探前景, 四川盆地

Abstract:

The reservoirformimg characteristics of Xujiahe Formation in Sichuan Basin are stated in this paper,and also,it is pointed out that the formation is a set

of coal bearing clastic rack strata formed on the base of marine facies carmonate platform in the western margin of upper Yantz platform,it is one of the most

prospective formations in Sichuan Basin due to the exclusive hydrocarbon generation,reservoir and cap association.Vertically,in the Xujiahe Formation gas reservoirs,

three sets of sandwichlike reservoirforming associations develop,which takes lithologic gas reservoir,structurallithologic combination gas reservoir as the

main existing way,and is of the characteristics of multiple reservoirforming associations,high water saturation,complicated gas and water eolation,diverstified gas

reservoir types,and controlled by hydrocarbon source,reservoirs,ancient and present structures and foreland basin texture.The research indicates the reservoirforming

conditions and the matching of Xujiahe Formation in Sichuan Basin are generally good.There exist five favorable gas accumulation areas with bright explorative prospect.

Key words: Xujiahe Formation, gas reservoir, reservoirforming characteristics, exploration prospect, Sichuan Basin

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