晋城无烟煤地区煤层气储层区域差异及不同区域特征

Regional Difference of CBM Reservoir and Different Provincial Characteristics in Anthracite Area in Jingcheng

为了使煤层气开发技术的选择更具有目的性,有必要对晋城无烟煤地区煤层气储层区域差异及不同区域的特征进行细致的研究。通过研究煤储层本身的渗透性和含气性,以煤储层大裂隙系统和煤层含气量为参考对象,把煤层气储层划分为四类,并就各类煤层气储层区域的特征做了概括总结。在此基础上,对煤层气开发提出了针对不同煤层气储层区域差异特征,采取不同开采手段的建议。

In order to select the CBM development methods with interest,it is necessary to make a close investigation of regional differences and characteristics of CBM reservoir in anthracite areas in Jincheng. The CBM reservoirs are divided into four classes based on permeability and gas content of coal reservoirs by taking reference to the big fracture system in coal reservoir and seam gas content. The paper makes a summary of the characteristics of CBM reservoirs zones in all categories. Based on the classification,the paper recommends adopt different means for CBM extraction to accommodate regional characteristics of different CBM reservoirs zones.