基于灰色关联与层次分析的脆性指数预测方法——以准噶尔盆地吉木萨尔凹陷芦草沟组致密储层为例

刘庆, 张镇, 杨帅, 李枫凌

Method for brittleness index prediction based on grey correlation and analytic hierarchy process:A case study of the tight reservoirs in the Lucaogou Formation of the Jimusaer Sag,Junggar Basin

LIU Qing, ZHANG Zhen, YANG Shuai, LI Feng-Ling

表2 利用实验方法获得的岩样综合脆性指数

Table 2 Comprehensive brittleness index of rock samples obtained by experimental method

编号 岩性 σP/MPa σr/MPa εP/% εr/% BIP BIS BIe X1 泥晶白云岩 228.3 121.9 1.3 1.7 0.615 0.259 0.875 X2 泥页岩 178.6 115.3 1.1 1.5 0.505 0.188 0.693 X3 砂屑白云岩 201.9 88.7 0.6 0.8 0.231 0.282 0.512 X4 白云质粉砂岩 162.3 89.3 0.5 0.9 0.176 0.133 0.308