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Formation of fractures in carbonate rocks by pad acid fracturing with different states of carbon dioxide
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GUO Jianchun,ZHAN Li,GOU Bo,ZHANG Ran,LIU Chao,LI Xiao,REN Jichuan
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Table 1. Comparison of parameters of natural outcrop samples and downhole cores.
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| Rock type | Dolomite/% | Porosity/% | Permeability/10-3 μm2 | Young's Modulus/GPa | Poisson's Ratio | Compressive Strength/MPa | | Natural outcrop | 93.60 | 2.08 | 6.44 | 48.70 | 0.233 | 434.00 | | Downhole core | 94.20 | 1.51 | 3.25 | 45.30 | 0.245 | 401.00 | | Relative error/% | 0.64 | -27.40 | -49.53 | -6.98 | 5.150 | -7.60 |
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