新型分层抽水管内止水装置的研制

为满足分层抽水试验止水及观测要求,设计加工制做了一种新型管内分层抽水止水装置。此新型止水装置结构简单,方便现场取材及加工制作,且止水效果可靠,克服了以往止水方法存在的缺陷,能有效地隔离上下含水层,防止上下含水层串通,从而能够在同一井孔内实现快速地管内分层止水,保证了分层抽水试验工作的实施。

Development of a New Type of Intra-tube Sealing Device for Stratified Water Pumping

A new type of intra-tube sealing device for stratified pumping was designed and manufactured in order to meet the requirements of water sealing in stratified pumping test and observation. This new sealing device has the advantages of simple structure and can be conveniently processed with on-site materials with reliable sealing effect; the shortcomings of traditional sealing method are overcome, the upper and lower aquifers can be effectively isolated to prevent the water mixing flowing of upper and lower aquifers. Thus, rapid stratified water sealing inside pumping tube in a same well can be realized, which ensures the operation of stratified pumping test.