众所周知,聚丙稀酰胺用于配制劣质粘土泥浆,效果极差,加量少了比重降不下来,药量大了又会发生聚结沉淀,导致水土分层,常常要消耗掉大量的护胶剂。在煤田钻探中,钻孔漏水比较严重,大量使用价格昂贵的膨润土显然是不经济的,于是人们较多采用峰峰红土(一种劣质粘土)配制泥浆。我队在施工过程中,采用PAM·KHM共聚物处理这种泥浆,取得了显著效果。 As we all know, polyacrylamide for the preparation of poor quality clay slurry, the effect is very poor, the amount of less than the proportion of down does not come down, the amount of large coalescence and precipitation will occur, resulting in water and soil stratification, often consume a lot of glue . In coalfield drilling, drilling leakage is more serious, extensive use of expensive bentonite is obviously uneconomical, so people are more Fengfeng laterite (a poor quality clay) preparation of mud. Our team in the construction process, the use of PAM · KHM copolymer slurry treatment, and achieved remarkable results.