Assessment of miscible light-hydrocarbon-injection recovery efficiency in Bakken shale formation using wireline-log-derived indices

The proposed log-derived EOR-efficiency indices generate consistent predictions of miscible light-hydrocarbon injection performance in the Bakken shale formation at various resolutions. Indices indicate that several formation zones in the middle section of the formation will have much higher recovery potential in comparison to the upper and lower sections of the formation. At a resolution of 1-foot depth interval, several flow units were successfully identified in the middle section that exhibit high miscible-gas-injection recovery potential.