收稿日期: 2010-05-16
修回日期: 2010-12-29
网络出版日期: 2011-02-10
基金资助
国家重点基础研究发展计划“973”项目(编号:2007CB209504)资助.
The Control Effect of the Effective Source-Reservoir Combinations to Gas Reservoir Formation in Xujiahe Formation, Sichuan Basin
Received date: 2010-05-16
Revised date: 2010-12-29
Online published: 2011-02-10
王红军, 卞从胜, 施振生 . 四川盆地须家河组有效源储组合对天然气藏形成的控制作用[J]. 天然气地球科学, 2011 , 22(1) : 38 -46 . DOI: 10.11764/j.issn.1672-1926.2011.01.38
Xujiahe Formation in Sichuan basin, developed three sets of mudstone source rocks and dense sandstone reservoirs, which are interbedded and distributed in a large area. By analyzing the known typical gas reservoirs, it is clearly that gas migration as well as accumulation occurred near its source rock, and the gas reservoirs′ distribution are greatly separated horizontally, which are controlled by the efficient source reservoir combinations. Careful statistics research was carried out to the sand and mud combination distributed in the T3x3 source rock and T3x4 reservoir rock, and the efficient source\|reservoir combinations not only develop between the T3x3 and T3x4, but also are inside the T3x3 and T3x4 itself. The source rock quality, gas generation intensity, reservoir properties and efficient thickness of source\|reservoir combinations in T3x, decide its efficiency to the gas accumulation and gas reservoirs distribution horizontally.
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