The adsorption/desorption properties of CBM in high-and low-ranks coals, controlled by the physical proqerties of coal reservoirs, are quite different.

• 高、低煤阶煤层气藏吸附、解吸特征受煤储层物性差异的控制，呈现出显著差别，目前这方面的研究还基本上处于空白。