Experimental research on amphiphilic polymer/organic chromium gel for high salinity reservoirs

Polymer gel has been widely used as a plugging agent for blocking the thief zones and improving the oil production. However, the performance of conventional polymer gel is unsatisfactory in high salinity conditions because of its rapid syneresis. In this work, an amphiphilic polymer gel was formulated by crosslinking salt resistant amphiphilic polymer with organic chromium, which had very low syneresis under high salinity (NaCl 80,000 mg/L) and...