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介绍了两性离子聚合物钻井液的配方优选与现场技术措施。陕北地区的应用结果表明，该钻井液抑制性强，能满足该区地层对钻井液性能的要求，减少了井下事故的发生，经济效益和社会效益良好。
The formulation optimization and field technical measures of zwitterionic polymer drilling fluid are introduced. The application results in northern Shaanxi show that the drilling fluid has strong inhibition and can meet the requirements of drilling fluid properties of the formation in this area, reducing the occurrence of downhole accidents, and has good economic and social benefits.