CO₂ dissolution-diffusion in clay inhibitor/oil systems and synergistic CCUS-EOR effects in strongly water-sensitive reservoirs.

(2) Taking the third cycle of alternating injection as an example, the CO 2 sequestration efficiency (68.3%, 59.2%, and 42.5%) of 10.15, 42.71, and 102.75 × 10 −3 μm 2 cores at 2/5 distance were compared, and it was concluded that there is an increasing trend in the CO 2 sequestration efficiency with increasing permeability.

also in 63,971 other papers

The following two conclusions are drawn, (1) the CO 2 content of the cores with three permeabilities at the same injection stage shows a decreasing trend from the injection end to the withdrawal end, which is due to the highest injection pressure at the injection end, which has a stronger ability to enter the pore throat and interact with the crude oil, and with the advancement of the driving leading edge to the withdrawal end, the injection pressure decreases, resulting in a weakening of the ability of the CO 2 to displace the fluid in the pore space.

also in 47,180 other papers