Review Article
Recent Advance of Microbial Enhanced Oil Recovery (MEOR) in China
Table 6
Luo 801 block microbial flooding field test in Shengli Oilfield.
| | Area of block (km2) | 1.25 |
| | OOIP (tons) | 2910000 | | Reservoir depth (m) | 1680-1800 | | Reservoir thickness (m) | 15.5 | | Reservoir temperature (°C) | 75-80 | | Injectors/producers | 5/13 | | Formation brine salinity (ppm) | 9794 | | Formation brine divalent (ppm) | NA | | Average permeability (mD) | 218 | | Average porosity (%) | 23.4 | | Dead oil viscosity (cP) | 221.7 | | Formation oil viscosity (cP) | 12.8 | | Original oil saturation (%) | 60 | | Water cut | 86.5 | | Implementation time | July 1999- | | Injection slug (PV) | 0.25 | | Microbe concentration | NA | | Effective wells ratio | NA | | EOR (% OOIP) | 4.95 | | Water cut reduction (%) | 7.3 | | Input-output ratio | ≈1 : 4 | | Effective duration time | >15 years | | Expansion test | Yes |
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