With the analysis on the pressurized mercury experiments, a research was done on the development conditions of the porosity and fissure systems in the seams of the coalfield in Qinan Mining Area.

从煤层气生成机制及其地质控制、煤储层孔隙结构与吸附/解吸行为、煤储层裂隙系统及其对渗透率的影响三个方面，有重点地总结了国外有关煤层气成因和煤储层物性研究的新进展。

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