稠油储层核磁共振孔隙度校正方法
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张伟,吴意明,崔维平,肖亮
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Correction for the Nuclear Magnetic Resonance Porosity in Heavy Oil-bearing Reservoirs
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Wei ZHANG,Yi-ming WU,Wei-ping CUI,Liang XIAO
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表1 岩心样品的岩石物理参数
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Table 1 The physical properties of core samples used in the NMR experiments
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样品编号 | 取心深度/m | 孔隙度/% | 渗透率/mD | 地层电阻率/(Ω·m) | 岩性 | 备注 | 气驱法 | 原始状态 | 饱含油 | 残余油 | 饱含水 | NMR测井 | C1 | 1359.76 | 32.2 | 29.4 | 30.7 | 30.9 | 32.6 | 26.1 | 138.0 | 1.36 | 疏松砂岩 | 稠油层 | C2 | 1362.25 | 34.3 | 30.3 | 32.5 | 32.8 | 34.7 | 29.7 | 1219.3 | 1.96 | 疏松砂岩 | 稠油层 | C3 | 1378.80 | 34.7 | 31.9 | 31.1 | 31.3 | 34.1 | 30.5 | 2140.9 | 3.38 | 疏松砂岩 | 稠油层 | C4 | 1385.62 | 29.1 | 27.6 | 26.9 | 27.1 | 28.3 | 29.3 | 351.5 | 1.42 | 疏松砂岩 | (稠)油水同层 | C5 | 1388.62 | 24.5 | 22.4 | 22.7 | 22.9 | 23.5 | 24.1 | 57.2 | 1.17 | 疏松砂岩 | (稠)油水同层 | C6 | 1390.62 | 25.2 | 22.0 | 23.1 | 23.4 | 24.2 | 24.7 | 19.8 | 1.30 | 疏松砂岩 | 稠油层 | C7 | 1431.75 | 33.6 | 28.8 | 30.9 | 31.4 | 34.0 | 28.4 | 2245.8 | 4.92 | 疏松砂岩 | 稠油层 | C8 | 1433.48 | 18.0 | 13.6 | 17.4 | 17.5 | 17.7 | 17.6 | 17.9 | 3.91 | 疏松砂岩 | 稠油层 | C9 | 1474.60 | 31.5 | 27.8 | 29.9 | 30.3 | 31.6 | 27.9 | 3129.3 | 4.85 | 疏松砂岩 | 稠油层 | C10 | 1483.57 | 23.5 | 21.0 | 21.7 | 21.9 | 23.2 | 20.8 | 178.6 | 1.22 | 疏松砂岩 | (稠)油水同层 |
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