四川盆地致密砂岩气藏勘探现状与资源潜力评价  

Exploration status and potential evaluation of tight gas in Sichuan Basin

作　　者：卞从胜[1] 王红军[1] 汪泽成[1] 徐兆辉[1] 

机构地区：[1]中国石油勘探开发研究院,北京100083

出　　处：《中国工程科学》2012年第7期74-80,共7页Strategic Study of CAE

基　　金：国家重点基础研究发展计划"973"项目(2007CB209500)

摘　　要：川中地区是目前须家河组已发现的储量集中区,由于气源的不充分性导致气藏含水饱和度高,规模经济开发难度偏大。在成藏条件综合研究的基础上,评价认为须家河组下一步勘探潜力区主要分布在川中西部的金华—蓬溪地区须二和须四段,以及川西北部的剑阁—柘坝场地区须三段,这些区域气源灶发育,生气强度大,储层保持较好,且构造和裂缝发育,多口高产气井和规模储量的发现表明其成藏潜力巨大,将成为须家河组天然气勘探的重要新领域。The majority of discovered reserves is central Sichuan Basin, but the economic development to the reserves is difficult because of the high saturation of water in gas reservoirs. Based on comprehensive study on the gas accumulation conditions, the evaluation to gas resource of Xujiahe formation is done, which points that ex- ploration potential regions are Xu 2 and Xu 4 of Jinhua - Pengxi in central Sichuan Basin, and Xu 3 of Jiange in northwest of basin, where the source rock and reservoir as well as fracture are developed well. High-production gas from lots of wells and discovered scale reserves show that these potential regions will become the important new fields in Xujiahe formation, Sichuan Basin.

关 键 词：大型化成藏 源内成藏 资源潜力 致密砂岩气 须家河组 四川盆地 

分 类 号：TE1[石油与天然气工程—油气勘探] TE3