压制孔隙影响的流体敏感因子优选及其在烃类检测中的应用

王迪, 张益明, 牛聪, 黄饶, 韩利

The optimization of sensitive fluid factor removing the effect of porosity and its application to hydrocarbon detection

WANG Di, ZHANG Yi-Ming, NIU Cong, HUANG Rao, HAN Li

表2 流体和孔隙度替代后弹性参数值及敏感系数计算结果

Table 2 Coefficient of different elastic parameters after fluid and porosity substitution

弹性参数 σ AI/ (106 m-2·kg·s-1) SI/ (106 m-2·kg·s-1) μρ/ (1012 m-4·kg2·s-2) λρ/ (1012 m-4·kg2·s-2) λ/μ 泊松阻抗PI/ (106 m-2·kg·s-1) 流体项f/ (1012 m-4·kg2·s-2) 原状地层 0.2293 5.6825 3.3678 11.3420 9.6063 0.8470 0.9675 16.4115 流体替代 0.2973 6.3717 3.4223 11.7126 17.1739 1.4463 1.5804 24.2015 孔隙度替代 0.2231 5.0941 3.0413 9.2494 7.4515 0.8056 0.8364 13.0011 系数A 0.1281 0.0571 0.0080 0.0161 0.2825 0.2677 0.2405 0.1918 系数B 0.0137 0.0546 0.0509 0.1016 0.1263 0.0250 0.0723 0.1159 评价因子C 0.7918 0.0232 -0.7274 -0.7268 0.3821 0.8391 0.5357 0.2465