A water - plugging and profile modification agent was prepared using acrylamide and cationic monomer as main materials, and adding acrylic acid, crosslinking agent and other additives.

• 以丙烯酰胺、阳离子单体为主要原料,加入丙烯酸、交联剂及其他添加剂,制得抗盐型调堵剂。