Research Article
Recovery Method and Parameter Optimization of a Pilot Test for Conformance Control Flooding and Thermal Recovery in the Offshore Heavy Oilfield
Table 3
The conformance control flooding scheme and effect of B6 well group.
| | Parameter | Polymer concentration (mg/L) | Slug size (PV) | Interval time of polymer injection (month) | The result of scheme | Comprehensive evaluation index | | Accumulative oil increment (104 m3) | Production-injection ratio | Recovery ratio increment (%) |
| | 1 | 2500 | 0.06 | 9 | 0.918 | 2.112 | 1.224 | 1.418 | | 2 | 2500 | 0.08 | 12 | 1.291 | 2.515 | 1.721 | 1.842 | | 3 | 3000 | 0.06 | 12 | 1.012 | 2.136 | 1.349 | 1.499 | | 4 | 3000 | 0.08 | 9 | 1.354 | 2.384 | 1.806 | 1.848 |
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