明确孔隙介质中水压力的实质；
缝洞孔复合型具有双重孔隙介质的特点，压力恢复曲线具多台阶型。
The third type has double porosity system, and the build-up curve has a stepwise form.
介质变形对火山岩气藏渗透率影响较大，而对孔隙度影响较小。
Media deformation has great effect on permeability while it has little effect on porosity.
介质变形对火山岩气藏渗透率影响较大，而对孔隙度影响较小。
Media deformation has great effect on permeability while it has little effect on porosity.
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