Research Article

A Novel Approach to Determine the Enriched Gas Recycling during the Enriched Gas Flooding Process

Table 4

Injection and production data of enriched gas flooding in the field Z and calculated EGRs.

Injection stageEnriched gas (LPG : NG, %)Injection volume (rm3)GORProduced gas (103 m3)PFVF (10-3)Production volume (rm3)EGR (%)

Stage 159.8 : 40.2145.888319.354.2682.4856.57
Stage 241 : 59479.537066.914.29287.2159.89
Stage 337.1 : 62.9556.995071.385.68405.0672.73