Diffusion is a process surely occurring during the preduction of coalbed gas. 扩散作用主要影响煤层气井的早期产量。
The result shows that the recovery condition of the CBM well will change with the change of the recovery system, and the permeability of coal reservoirs will also change. 研究结果表明,煤层气井工作制度的变化会引起煤层气井采动状况发生变化,导致煤储层渗透率产生波动。