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Formation permeability evaluation and productivity prediction based on mobility from pressure measurement while drilling
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SHI Xinlei,CUI Yunjiang,XU Wankun,ZHANG Jiansheng,GUAN Yeqin
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Table 3 Accuracy comparison of calculated average permeability of coring section of Well A35.
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| Coring interval/m | Core permeability/
10-3 μm2 | Calculated by adjacent oilfield model | Calculated by new model | Permeability/
10-3 μm2 | Absolute error/
10-3 μm2 | Relative
error/% | Permeability/
10-3 μm2 | Absolute error/
10-3 μm2 | Relative
error/% | | 1 379.2-1 382.5 | 1 939.4 | 4 562.0 | 2 622.6 | 135.2 | 1 609.8 | -329.6 | 17.0 | | 1 551.1-1 553.8 | 1 512.0 | 3 213.4 | 1 701.4 | 112.5 | 975.0 | -537.0 | 35.5 |
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