【摘要】 从煤储层双孔隙系统出发探讨了介质对煤层气扩散运移的制约关系及程度。以沁水盆地为例,分析了孔隙系统和裂隙系统在煤层气运移过程中的不同作用,认为孔隙系统在煤层气运移过程中主要承担扩散作用——把气体从微孔输送到裂隙系统,而裂隙系统主要起渗流作用——控制着气体的流量。更多还原

【Abstract】 Through a large amount of basic research, this paper discusses the restrict relationship and degree of dual-porosity media system of coal reservoir acting on diffusion and transport of CBM. Taking Qinshui basin as the example, the different effects of pore system and fracture system on process of CBM transport are investigated, and some conclusions are obtained.更多还原