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A permeability prediction method based on pore structure and lithofacies
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GAN Lideng,WANG Yaojun,LUO Xianzhe,ZHANG Ming,LI Xianbin,DAI Xiaofeng,YANG Hao
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Table 1 MSEs and determination coefficients from multi-factor regression.
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| Parameters | Facies
classification | Well FUD7 | Well FUD6 | | MSE | R2 | MSE | R2 | | Porosity | No | 0.959 9 | 0.439 2 | 1.505 6 | 0.326 9 | | Yes | 0.938 7 | 0.506 7 | 1.296 1 | 0.525 0 | | Porosity, P-wave velocity | No | 0.956 9 | 0.440 9 | 1.402 6 | 0.350 8 | | Porosity, Vp/VS ratio | No | 0.923 9 | 0.460 2 | 1.401 4 | 0.392 1 | | Porosity, Shear flexibility factor | No | 0.776 5 | 0.546 3 | 1.356 4 | 0.496 1 | | Porosity, P-wave velocity, Vp/VS ratio | No | 0.897 5 | 0.475 7 | 1.075 6 | 0.498 9 | | Yes | 0.892 4 | 0.540 8 | 0.954 2 | 0.592 5 | Porosity, P-wave velocity, Vp/VS ratio,
Shear flexibility factor | No | 0.742 1 | 0.566 4 | 0.935 6 | 0.601 6 | | Yes | 0.672 1 | 0.794 8 | 0.894 3 | 0.792 4 |
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