水溶性聚合物在井筒附近胶凝后，使相应的生产井水流度大幅度降低，水的相对渗透率急剧下降，进而使进入井筒的油液量大幅度上升。由于井筒附近油层的这种变化，导致了产出水量减少，相应地，提升、分离、脱水、传输及其它处理费用也得以降低，致使整个采油费用大幅度下降。 After the water-soluble polymer is gelled near the wellbore, the water flow in the corresponding production well is drastically reduced, and the relative permeability of the water drops sharply, thereby greatly increasing the amount of oil entering the wellbore. As a result of this change in the oil formation near the wellbore, there has been a reduction in the volume of produced water. Accordingly, the costs of upgrading, separation, dehydration, transmission and other treatment have also been reduced, resulting in a substantial drop in the cost of oil production.