耐高温深部调驱剂实验研究

针对低度交联聚合物调驱剂耐温能力的不足，优选出合成耐温调驱剂的主要原料，并通过实验筛选出耐温调驱体系的最佳配方：聚合物HPAM1500mg／L＋酚醛树脂交联剂500mg／L＋有机铬交联剂20mg／L＋盐热稳定剂100mg／L＋除氧剂100mg／L。此调驱体系采用二次交联技术，耐温可达100～110℃。实验结果表明，调驱剂的成胶时间随温度升高而缩短，温度为80—110℃时，胶体强度都在10000mPa·s以上。体系在110℃下成胶之后的老化过程中，随着时间的延长，黏度降低。老化至60d时黏度保留率为70％左右，在110℃的热稳定性较好。此体系具有一定的封堵高渗透大孔道的能力，对于渗透率为（119—306）×10^-3μm。的岩心，此调驱体系的封堵率均在90％以上，但堵而不死，可动性也较强，具有驱替基质中原油的潜力。

Experimental Research on Thermostable Deep Oil Profile Control Agent

In view of the poor thermostability of profiling agent made from low crosslinking polymer,one major raw material for synthesizing thermostable profiling agent was selected,and the optimum formulation of the thermostable profile modification system was identified through experimental selection; 1 500 mg/L of polymer + 500 mg/L of phenolic resin crosslinker + 20 mg/L of organic chrome crosslinker + 100 mg/L of salt thermal stabilizer + 100 mg/L of deoxidizer.Secondary crosslinking technology was used for the ...