结果表明：净覆压对储层的孔隙度、渗透率和岩石压缩系数具有明显的影响，对储层岩石孔隙结构影响较小；
The results show that net burden pressure has obvious influence on porosity, permeability and rock compacting factor with little effect on pore configuration.
通过室内试验，利用围压模拟地层应力，研究了有效应力与岩心的渗透率、孔隙度、岩石压缩系数之间的关系。
An experimental study in laboratory was carried out to determine the effect of ground stress on core porosity, permeability and compressibility by using confined pressure to simulate terra stress.
并给出了体变模量、宏观压缩系数和孔隙度之间的关系式。
The relationship between bulk modulus, macro-compressibility and porosity is also given.
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