实验室研制了一种以部分水解聚丙烯酰胺、有机铬为主剂的冻胶体系。在70℃条件下考察了主剂浓度、矿化度、温度、pH值等对体系成胶性能的影响。结果表明,该体系在矿化度<20 000mg/L、温度65~80℃、pH值为5~7时,生成的冻胶突破真空压力达到0.080 MPa以上。由岩心封堵试验得到,该冻胶体系对模拟岩心的封堵率高达97%。 Laboratory developed a partially hydrolyzed polyacrylamide, organic chrome-based jelly system. The effects of main agent concentration, salinity, temperature and pH value on the gelation performance of the system were investigated at 70 ℃. The results show that when the salinity is less than 20 000 mg / L, the temperature is 65 ~ 80 ℃ and the pH value is 5 ~ 7, the pressure of the jelly generated by this system reaches 0.080 MPa or above. By the core plugging test, the gelatine plugging rate of this jelly system was as high as 97%.