When rockporosity and fluid modulus are relatively small, compressional velocity is relatively more sensitive to variation of fluid saturation.
岩石孔隙度及流体模量较小时，纵波速度对流体变化比较敏感。
2
This paper discusses the principle and structure of the instrument for measuring rockporosity and permeability under temperature and pressure, and also various conditional experiments.
本文论述了温压下岩石孔隙度、渗透率参数测定仪器原理、仪器结构以及各种条件实验。
3
This pore space is known as porosity and is expressed as a percentage of the total rock volume.