CO2 Low Salinity Water Alternating Gas: A New Promising Approach for Enhanced Oil Recovery
It has been recognized that there are significant advantages on combining low salinity
waterflooding (LSW) with other enhanced oil recovery (EOR) techniques such as polymer or
low tension surfactant flooding. This paper proposes a novel concept of low salinity water-
alternating-CO2 (CO2 LSWAG) injection under CO2 miscible displacement conditions.
While LSW is an emerging EOR method based on alteration of wettability from oil-wet to
water-wet conditions, WAG is a proven method for improving gas flooding performance by …
waterflooding (LSW) with other enhanced oil recovery (EOR) techniques such as polymer or
low tension surfactant flooding. This paper proposes a novel concept of low salinity water-
alternating-CO2 (CO2 LSWAG) injection under CO2 miscible displacement conditions.
While LSW is an emerging EOR method based on alteration of wettability from oil-wet to
water-wet conditions, WAG is a proven method for improving gas flooding performance by …