高变质煤层气成藏特征  

Formation Characteristics of High Rank Coalbed gas Reservoir

作　　者：王红岩[1] 李景明[2] 赵群[2] 

机构地区：[1]北京大学工学院 [2]中国石油勘探开发科学研究院廊坊分院

出　　处：《天然气技术》2007年第5期36-39,94,共4页NATURAL GAS TECHNOLOGY

基　　金：国家973计划项目(编号:2002CB211705)资助

摘　　要：我国含煤盆地的地质条件构造活动要比美国复杂得多,煤层气的生成和富集有着自身的特点,且多数煤层在其沉积后经历了多个期次、多个方向的应力场改造,大部分高煤阶形成与岩浆热变质事件有关,这些因素使高煤阶的气体成因、物性特征、水文地质条件、含气性和成藏过程与低煤阶和国外高煤阶明显不同,有可能形成煤层气高产富集区,形成煤层气勘探的有利地区。The geologic tectonic characteristics of coal basin in China is more complex than that one in America, the creating and enrichment of coal bed methane in China have itself characters. A lot of coal bed suffered multi-time and multi-direction stress rebuilding, a majority of the creating of high rank coal bed had something with magmatic dissolution. Above all factors make the methane creating mechanism, physical property, hydrologic geology property and gas property as well as development history of reservoir creating of high rank coal bed methane reservoir be different form the low rank coal bed methane reservoir and those in America. So, it is possible that high output production reservoir of coal bed methane reservoir was developed.

关 键 词：煤层气 高爆阶 成藏特征 

分 类 号：P618.11[天文地球—矿床学]