Using the rock resistivity meter with simulating in - situ conditions , the relations between rock resistivity and temperature were observed from 6 sandstone samples with different porosity and permeability , while samples were brine water - saturated and subjected to certain confining pressure . it is found that the resistivities of water - saturated rock samples decrease in the form of power expression with the temperature increase . although the resistivity of brine water decreases with temperature in the same rule , it can not entirely account for the decreasing of rock resistivity . the cementation factor 利用模拟地层条件岩芯电阻率测量仪，对6块孔隙度渗透率各不相同的砂岩岩芯，在一定围压条件下，岩芯完全饱和盐水时，考察了岩芯电阻率随温度的变化。发现饱和盐水岩芯的电阻率随温度升高，以幂函数形式下降。虽然岩芯中饱和盐水的电阻率同样随温度以幂函数形式下降，但岩芯电阻率的下降不能完全用岩芯饱和盐水的下降表征。
2.
The following results were found , i . e . , the water ratio affects obviously the acoustic wave velocity of rock sample ; the wave velocity is higher in saturated rock samples than in unsaturated ones ; and it decreases gradually with the strain of samples during uniaxial compression ; and also with the lengthening holding time at 160 ; when heating the samples the acoustic wave velocity increases slightly in initial stage and comes to the peak value at 60 , then decreases gradually with increasing temperature ; meantime , there is a certain temperature effect on rock samples size 实验发现含水率对波速影响比较大，饱和岩样的声波传播速度高于不饱和岩样的声波传播速度；人工预制裂纹对声波传播速度影响不大；单轴压缩条件下，声波传播速度随应变增加逐渐降低；在同一温度( 160 )下，波速随保温时间的增加而逐渐降低；在对岩样逐渐加热情况下，初始加热阶段波速略有升高，当温度达到60时，岩样波速达到峰值，之后随着温度继续升高其波速逐渐下降；波速随温度变化具有一定的尺寸效应。
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