Research Article
Asphaltene Deposition during CO2 Flooding in Ultralow Permeability Reservoirs: A Case Study from Changqing Oil Field
Table 5
Asphaltene precipitation model and deposition model parameters.
| | Asphaltene precipitation rate coefficient, | 0.5/day | | Precipitated asphaltene dissolution rate coefficient, | 0.05/day | | Surface deposition rate coefficient, | 0.003/sec | | Pore throat plugging coefficient, | 0.001/cm | | Entrainment of deposited asphaltene coefficient, | 0.0000001/cm | | Critical interstitial oil velocity, | 1000 m/day | | Volumetric concentration of asphaltene precipitation, | 0.1 | | Volumetric concentration of precipitated asphaltene dissolution, | 0.1 |
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