影响我国煤层气可采性主要储层参数特征

CHARACTERISTICS OF MAIN RESERVOIR PARAMETERS INFLUENCING CBM DEVELOPMENT IN CHINA

基于我国含煤盆地地质条件和近年来煤层气勘探的实践,并对比国外煤层气开发盆地的地质条件,研究了煤层气资源量和资源丰度、煤储层压力、煤层渗透性和埋藏深度、煤的吸附性和水文地质条件等影响煤层气可采性的主要储层参数特征,指出单一因素对某一地区的煤层气勘探开发所起的作用也许是至关重要的,但对大多数地区来说,煤层气的可采性取决于各种地质因素的有效配置。

Base on the systematic analysis of geological conditions and the data of coalbed methane CBM） exploration in China, this paper analyzes the size and density of CBM resources, reservoir pressure, permeability, depth, adsorption, and hydrogeological conditions. The results indicate that, for one area, one factor maybe very important for CBM development, but for most areas, the recoverability of CBM lies on the effective configuration of various geologic factors.