吐哈盆地致密砂岩气成藏特征及勘探潜力分析  

Analysis of Features of Tight-gas-sandstone Reservoir and Exploration Potential in Tuha Basin

作　　者：康积伦[1] 文玉兰[1] 师效飞[1] 周玉玲[1] 陈慧[1] 

机构地区：[1]中国石油吐哈油田公司勘探开发研究院,新疆哈密839009

出　　处：《吐哈油气》2010年第2期220-223,共4页Tuha Oil & Gas

摘　　要：吐哈盆地是一个大型的富煤盆地,煤系源岩形成的气资源丰富,但烃源岩熟化速率低、储层物性差,具有发育大型致密砂岩气藏得天独厚的地质条件。按照成熟烃源岩、致密砂体和叠置关系三个主控因素来分析,认为吐哈盆地应该发育北部山前改造型和盆地南坡原生型两类致密砂岩气藏,有利勘探面积9 520 km^2,分布在八个区块,初步评价致密砂岩气资源量6 200×10~8m^3。Tuha basin is a large scale coal-rich basin, gas resources formed by coal measures source rock is abundant, but maturation rate of hydrocarbon source rock is low, reservoir physical properties are poor, with favorable geologic conditions that large scale tight-gas-sandstone reservoir can be developed. Based on the analysis of three main controlling elements, including mature hydrocarbon source rock, dense sandbody and overriding relationship, it is thought that two types of tight-gas-sandstone reservoir, i.e. northern mountain front reformation and primary type in south slope of basin, should be developed in Tuha basin, favorable prospecting area is 9 520 km^2 and is distributed in eight blocks, preliminary evaluated tight-gas-sandstone resource extent is 6 200× 10^8 m^3.

关 键 词：煤系源岩 生烃强度 沉积体系 致密砂岩气藏 

分 类 号：TE377[石油与天然气工程—油气田开发工程]