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Water-sensitive damage mechanism and the injection water source optimization of low permeability sandy conglomerate reservoirs
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WANG Lei,ZHANG Hui,PENG Xiaodong,WANG Panrong,ZHAO Nan,CHU Shasha,WANG Xinguang,KONG Linghui
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Table 1 Parameters of experimental cores.
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| No. | Length/
cm | Diameter/
cm | Porosity/
% | Gas permeability/
10-3 μm2 | Formation water permeability/
10-3 μm2. |
|---|
| 1 | 4.157 | 2.462 | 19.5 | 5.30 | 0.26 | | 2 | 5.795 | 2.475 | 17.9 | 24.00 | 2.56 | | 3 | 4.387 | 2.476 | 16.9 | 10.73 | 0.47 | | 4 | 4.392 | 2.481 | 13.5 | 7.59 | 0.17 | | 5 | 3.870 | 2.488 | 12.8 | 5.22 | 0.32 | | 6 | 4.429 | 2.489 | 9.0 | 0.80 | 0.03 | | 7 | 4.645 | 2.488 | 20.0 | 65.50 | 3.93 | | 8 | 6.052 | 2.480 | 22.8 | 193.00 | 11.23 | | 9 | 4.675 | 2.482 | 21.3 | 63.00 | 3.13 |
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