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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。实验结果表明,该仪器在不同温压下,孔隙度、渗透率测量最大相 对误差分别小于0.3%和1.9%。同一压力下,随温度升高,岩石孔隙度变化呈负相 关;同一温度下,随压力的升高,岩石孔隙度变化呈负相关,而岩石的气体渗透率 与压力和温度变化不太明显。
This article discusses the rock porosity under warm and pressure conditions, the permeability of the instrument parameters, instrument structure and a variety of experimental conditions. The experimental results show that the maximum relative error of porosity and permeability of the instrument under different temperature and pressure are less than 0.3% and 1.9% respectively. Under the same pressure, the rock porosity is negatively correlated with the temperature increase. At the same temperature, the rock porosity is negatively correlated with the increase of pressure at the same temperature, while the rock gas permeability and pressure and temperature change are not obvious.