Research Article
Advantageous Reservoir Characterization Technology in Extra Low Permeability Oil Reservoirs
Table 2
Oil and water phase-permeability test data of three types of reservoirs.
| Reservoir type | Bound water saturation (%) | Remaining oil saturation (%) | Width of common percolation area (%) | Common percolation point water saturation (%) | Flooding efficiency (%) |
| Type IV reservoir | 52.27% | 25.36% | 26.36% | 58.49% | 50.97% | 52.46% | 22.67% | 29.03% | 54.77% | 56.15% | Average | 52.37% | 24.02% | 27.70% | 56.63% | 53.56% |
| Type III reservoir | 48.28% | 19.34% | 28.39% | 65.55% | 59.48% | 48.30% | 16.12% | 31.42% | 59.70% | 66.10% | Average | 48.29% | 17.73% | 29.91% | 62.63% | 62.79% |
| Type II reservoir | 47.74% | 18.17% | 34.09% | 63.92% | 65.24% | 48.04% | 15.99% | 35.97% | 64.51% | 69.23% | Average | 47.89% | 17.08% | 35.03% | 64.22% | 67.24% |
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