Keywords aqueous polymer gelling fluid;profile modifying/water shutoff agent;acrylamide copolymer;sulfo polymer;low molar mass mixed resins;heat resistance;tolerancy to salt/calcium;preparation;

• 聚合物水基冻胶;堵剂;丙烯酰胺共聚物;磺化聚合物;低分子量混合树脂;耐温性;抗盐抗钙性;研制;