二元复合驱温度界限研究

Research of Surfactant/Polymer Driving's Temperature Limit

二元复合体系中,聚合物的黏度和表面活性剂的油水界面张力是影响二元复合驱驱油效果的主要因素。温度对这两个因素都有很大的影响。目前,二元复合驱在国内已进入矿场试验阶段。针对国内几个二元复合驱试验区块,通过实验研究温度对二元复合体系黏度和油水界面张力的影响,确定温度对二元复合驱矿场试验的影响,对二元复合驱矿场试验进行指导。对比几个试验区块的实验结果,通过研究温度对二元复合体系黏度和油水界面张力的影响,确定温度界限,对矿场试验有一定的指导意义。综合各区块实验结果,在国内首次确定二元复合驱温度界限为<80℃。

Polymer＇ s viscosity and surfactant＇ s oil/water interfacial tension are chief factors to influence surfactant/polymer driving in the system of surfactant/polymer. These factors are influenced largely by temperature. At present, surfactant/polymer driving is in the phase of field test. In the light of several experimental field, re- search the effect that temperature influence viscosity and interfacial tension. The results show how temperature influence the field test. The experiment take some guidance to the field test. Temperature＇ s effect to viscosity and interfacial tension is researched. Temperature＇ s limit can be determined. With the comprehensive analysis of several field tests, temperature limit is determined to under 80 ℃ firstly in the country.