填砾是第四系、上第三系松散地层成井工艺中的重要环节,为了确保所填滤料到位,填砾前泥浆替换达到要求是非常重要的,本文介绍了沉淀管换浆方法,同过滤器换浆方法进行了比较,沉淀管换浆方法比过滤器换浆方法替换泥浆效果更好,更有利于洗井工作及增大管井出水量。 Filling and graveling is an important step in Quaternary and Upper Tertiary loose formations. In order to ensure that the filling material is in place, it is very important to replace the pre-gravel slurry to replace it. This paper introduces the method of slurry pipe replacement, The method of filter slurry replacement was compared. The method of slurry pipe replacement was better than the filter replacement slurry replacement method, which was more conducive to the well washing work and increased the volume of tube well water.