Enhanced recovery

The water-shutoff technique is used in some wells of the U reservoir in the Iro field of the Oriente Basin in Ecuador to restore production after an early water breakthrough. This paper compares the production historical data, workovers, and sand-body correlation of wells to understand reservoir behavior, shale-baffle-sealing continuity, the existence of different san…
The authors demonstrate that alternating injection of polymer and water is effective and economical for heavy oil fields, even offshore.
A pilot project validates the use of an advanced polymerflooding technology on the Alaska North Slope.

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