中国煤层气资源特点及开发对策  

Characteristics of coalbed methane resource and the development strategies

作　　者：李景明 巢海燕[2] 李小军 刘洪林[2] 

机构地区：[1]中国石油煤层气有限责任公司 [2]中国石油勘探开发研究院廊坊分院

出　　处：《天然气工业》2009年第4期9-13,共5页Natural Gas Industry

摘　　要：据新一轮全国油气资源评价结果,我国埋深在2 000 m以浅的煤层气资源量为36.8×1012m3,煤层气资源十分丰富,其中赋存在低、中、高煤阶中的煤层气资源各占30%左右。分别以国内高、中、低煤阶代表性的盆地——沁水、鄂尔多斯和准噶尔3个盆地为对象,通过研究其基本地质条件、资源丰度及勘探开发状况,认为煤层气资源规模开发要立足大型含煤盆地和构造相对稳定的含煤盆地展开。高煤阶煤层开发应以斜坡带的承压水区、滞留水区及相对构造高部位为目标区;中煤阶煤层生、储条件好,部署应避开甲烷风化带和断层带;低煤阶煤层开发应考虑具多种气源条件和构造相对稳定的区块。According to the latest national hydrocarbon resource evaluation, the coalbed methane resource with a burial depth less than 2000 m accounts for 36.8 tcm all over China, among which low rank, medium rank and high rank coalbed methane present 30% respectively. Taking three basins representative of different rank coalbed methane: Qinshui, Ordos, and Junggar as cases of study, this paper discusses on the basic geological conditions, resource abundance, and the situation of exploration and development, and puts forward that commercial recovery of coalbed methane should start from large-scale coal-bearing basins especially those blocks with relatively stable geological structure. The favorable target zone for the high rank coalbed methane development will be artesian flow area, occluded water area and relatively structural high of ramp region; the deploy for the medium rank coalbed methane with good generation-reservoir conditions will try to avoid methane oxidation belt and fault belts; and the target zone for the low rank coalbed methane should be on the blocks with different gases as source and relatively stable geological structure.

关 键 词：中国 煤层气 资源丰度 低煤阶 中煤阶 高煤阶 开发对策 

分 类 号：TD841[矿业工程—煤矿开采]