聚合物驱油剂PL-1的合成与性能研究

采用水溶液聚合的方法合成了聚合物驱油剂PL-1，并通过室内实验进一步研究了表面活性剂浓度、聚合温度、各种单体(疏水单体、阴离子单体)含量以及聚合物在盐水溶液中表观粘度的影响。实验结果表明：疏水单体与阴离子单体含量分别在0．75％与15％时，该聚合物驱油剂PL-1具有很好的增粘效果，其性能能够满足高温、高矿化度油藏聚合物驱油的要求。

Synthesis And performance of polymer flooding agent PL-1

Due to the poor salt tolerance ami heal resistance of the partially hydrolyzed aeryl amide in the reservoir of high temperature and high inorganic salt, and the poor ability of shear, the hydropho-bically associating terpolymers acrylamide-N-Dodecyl acrylamide-2-acrylamino-2-metyl propane sulluric acid ( AM-C,, AM-AMPS) is prepared by brine solution polymerization with the nonionic monomer-AM, the anionic monomer-AMPS, the hydrophobic monomer-C12, AM, It is investigated that the effect of the content of the hydro-phobic monomer, anionic monomer, hydrophobic monomer, polymerization temperature and the concentration of the inorganic salt and the surfactant on the viscosity of the hydrophobically associating a-queous soluble terpolymers in brine. The results show that the aqueous soluble hydrophobically associating lerpolymers ( 1 200 mg/L) have good viscofication effect in brine (5 000 mg/L) , when the content of the hydrophobic monomer is 0. 75% , and of the anionic monomer is 15% , the hydrophohically associating terpolymers can meet the need of polymer flooding in reservoir of the high concentration in- organic salt.