开采地下水,特别是开采深层地下水,需要钻井。为了防止井壁坍塌,多采用泥浆钻进。但是泥浆造壁往往封闭了含水层,造成水井涌水量减少或抽水试验资料不准等严重后果。多年来,人们寻求各种方法,希望比较彻底地清除掉泥壁,最大限度地恢复含水层的透水性。我单位自1978年8月引进并推广了此项技术,取得很好的效果。水井 Groundwater mining, especially deep groundwater, requires drilling. In order to prevent the collapse of the borehole, use more mud drilling. However, the mud-made walls often close the aquifer, causing serious problems such as the decrease of water inflow in the wells or the inaccuracy of pumping test data. Over the years, people have sought ways to remove the mud wall more thoroughly and to maximize the water permeability of the aquifer. My unit since August 1978 to introduce and promote the technology, and achieved good results. well