我国每年水井工程建设量巨大,目前常用成井管材为金属井管,PVC-U塑料井管正处于推广应用阶段。为客观评价国内常用的几种供水井过滤管的腐蚀结垢和析出现象做了室内试验和实际井下检测。结果表明,金属井管腐蚀产生结垢物又加速腐蚀,而PVC-U过滤管不腐蚀不结垢,代替了传统金属管材具有成本低、能耗小、使用寿命长、维修次数少等优点。 China’s annual water well construction volume is huge, currently used as a well pipe for the metal well, PVC-U plastic well tube is in the promotion and application stage. In order to objectively evaluate several kinds of corrosion and fouling phenomena of filter tubes commonly used in China, indoor tests and actual downhole tests were done. The results show that the corrosion of the metal well tube produces scale and accelerates the corrosion, while the PVC-U filter tube does not corrode and scale. The utility model replaces the traditional metal pipe with the advantages of low cost, small energy consumption, long service life and few maintenance times.