Experimental study of electrical heating to enhance oil production from oil-wet carbonate reservoirs

• The effect of electrical heating on oil recovery in carbonate rocks was investigated. Electrical increased from water-wet and oil-wet samples. causes a reduction contact angle surface tension. makes imbibition faster, improving early time production. Renewable powered CCS can give low emission yields depleted wells. New approaches for enhanced (EOR) with reduced environmental footprint are required to improve mature fields, when combined carbon capture storage (CCS) provide useful options resource maximisation during the net zero transition. is investigated as potential EOR method reservoirs. Samples were placed an apparatus surrounded by wire coil across which different DC (direct current) voltages applied. Monitoring both deionized water (DW) seawater (SW) into initially Austin chalk showed that imbibed rock faster heated presence magnetic field. This associated water–air over measured external sample. Without heating, 127° approaching conditions, 90°, 52 min, while 3 V, 6 9 V applied sample 17 mm length, reach same only 47, 38 26 respectively, further witnessed SW. ultimate factor (RF) DW 13% recorded RF 26% compared 2.8% 11% SW without heating. We propose effective way recovery, enhancing capillary-driven natural influx, observe renewable-powered may be one option fields footprint.