A kind of JDL-1 thickener for betaine hydrophobic association polymer was prepared by aqueous solution polymerization of mixed micelles, AM, AA, AMPS and DM16 were used as raw materials, which was synthesized by redox initiator system. Friction tester and high-temperature rheometer were used to evaluate the resistance reduction and temperature and shear resistance of the thickener. The results show that the viscosity average molecular weight of the polymer prepared with AM, AA, AMPS and DM16 mass ratio of 70∶20∶5∶5 was higher than 12 million, and the dissolution time of the polymer was less than 3 min. When the surfactant is used for physical cross-linking, the apparent viscosity of the cross-linked fracturing fluid is larger than that of 60 mPa·s at 90 °C, 170 s-1 sheared 1 h; when metal cross-linking agent is used for coordination cross-linking, the apparent viscosity is larger than that of 80 mPa·s at 120 °C, 170 s-1 sheared 1 h. The drag reduction rate was 73%, the anti-swelling rate was higher than70%, and the damage rate was less than10%. The field trial was successful and confirmed the multifunctional effect of betaine-type hydrophobic associating polymer.

通过混合胶束的水溶液聚合制备了一种甜菜碱疏水缔合聚合物的JDL-1增稠剂，以AM，AA，AMPS和DM16为原料，通过氧化还原引发剂体系合成。使用摩擦测试仪和高温流变仪评估增稠剂的电阻降低以及温度和剪切阻力。结果表明，以AM，AA，AMPS和DM16质量比为70∶20∶5∶5制备的聚合物的粘均分子量大于1200万，溶解时间小于3min。当使用表面活性剂进行物理交联时，在90℃，170 s-1剪切1 h时，交联压裂液的表观粘度大于60 mPa·s。当金属交联剂用于配位交联时，表观粘度大于在120℃，170 s-1剪切1 h时的80 mPa·s的表观粘度。减阻率为73％，抗溶胀率高于70％，损坏率低于10％。现场试验是成功的，并证实了甜菜碱型疏水缔合聚合物的多功能作用。