Research Article
Numerical Simulation and Modeling on CO2 Sequestration Coupled with Enhanced Gas Recovery in Shale Gas Reservoirs
Table 2
Simulation results of three schemes.
| | Scheme | Cumulative gas production (106 m3) | Total gas injection (106 m3) | CH4 production (106 m3) | CO2 production (106 m3) | CO2 sequestration ratio (%) |
| | Depletion development | 9.52 | — | 9.52 | — | — | | Continuous injection | 9.56 | 2.07 | 9.31 | 0.25 | 87.9 | | Pulse injection | 9.53 | 1.04 | 9.33 | 0.20 | 80.8 |
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