In the process of developing deformable media gas fields, the pore pressure decreases when fluids flow out of the reservoir, and the difference of pressure inside and outside the reservoir increases.

• 变形介质气藏在开发过程中,孔隙压力随流体的流出而下降,使储层内外压差增大,孔隙受到压缩而体积缩小,孔隙度和渗透率随之降低,极大地影响到此类气藏的开采。