中文摘要：

煤层气主要以吸附态的形式存在，故其储存富集机理与常规的天然气有很大差异。主要从煤系条件、构造活动和水文条件3个方面讨论了这些因素对煤层气的储存富集的影响和控制作用。它们中通常由某个因素主导或多个因素协同对煤层气的储集构成影响，一个控制因素对煤层气储存富集的影响并非一成不变，在不同的条件下可以表现出多面性，甚至是截然相反的。因此，有必要对不同条件控制因素进行甄别。

英文摘要：

CoMbed methane mainly exists in the form of adsorbed mode, so the mechanism of storage and enrichment has great differ- ences from conventional natural gas. Three main factors （coal measure conditions,tectonic activity and hydrological conditions）and their influence and control to storage and enrichment of coalbed methane were discussed in this paper. Storage and enrichment of coalbed methane is controlled by a single factor or the multiple factors. Controlling factors of storage and enrichment of coalbed methane are not static. In different conditions,their influence often shows muhi-faceted nature, even the opposite. Therefore, distinguishing the controlling factors under different conditions is essential.