在室内合成了一种阴、阳、非复合离子型多元共聚物———JHG ,对其性能进行了全面的评价。结果表明 ,JHG在淡水钻井液和正电胶钻井液中均具有很好的降失水性能 ,与正电胶钻井液配伍性能好 ,并具有很好的抗盐和抗温性能 ,可作为正电胶钻井液降失水剂 ,还可作为淡水钻井液、盐水或饱和盐水钻井液及深井钻井液的降失水剂 ,具有很好的应用前景。 A kind of anionic, cationic and non-complex ionic multifunctional copolymer named JHG was synthesized indoors, and its performance was evaluated comprehensively. The results show that JHG has good water loss performance in freshwater drilling fluid and positive rubber drilling fluid, has good compatibility with positive rubber drilling fluid, good salt and temperature resistance, can be used as positive electricity Glue drilling fluid fluid loss agent, but also as a freshwater drilling fluid, salt water or saturated brine drilling fluid and deep well drilling fluid fluid loss agent, has good application prospects.