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3 各因素与脆性指数的关联度及排序

Table 3 Correlation degree and order of each factor and brittleness index

因素 自然伽马 GR/API 电阻率Rt /(Ω·m) 密度ρ/ (g·cm-3) 中子CNL/ 0.01 声波时差 ΔT/(μs·s-1) 关联度 0.861 0.752 0.706 0.565 0.543 排序 1 2 3 4 5