PVC-U塑料管在浅层地热能地下水资源开发工程中应用与研究

PVC-U塑料管具有耐腐蚀、不结垢、质量轻、使用寿命长等特点。将其应用于浅层地热能开发和供水管井工程中，不但可以解决金属井管腐蚀破裂、结垢和水源热泵回灌难等问题，而且还减少了水井维修费用、延长其使用寿命。结合河南郑州实施的437、400 m两眼浅层地热能开发和供水管井示范工程实践，详细论述了PVC-U塑料管成井工艺、存在问题及解决方法的研究成果。

Application and Research on PVC-U Plastic Pipe for Exploration of Shallow Geothermal Energy and Groudwater Resource

PVC-U plastic pipe has the character of corrosion resistance, no scale, light weight and long service life. With the application of it in the exploration of shallow geothermal energy and water supply pipe well engineering, the corrosion and break, scale in metal well pipe, and difficulties in recharging by groundwater heat pump can be solved with maintenance cost reduced and service life prolonged. According to the demonstration engineering practice of shallow geothermal energy exploration and water supply pipe well in Zhengzhou City, the paper detailed the result of research on completion technology of PVC-U plastic pipe well, existing problems and the solution.