The main cause of reduction of aquifer yield in a radiation well is that seepage paths are not clear.Following aspects show it f bottomhole filter layer is blocked, radiant tubes get rusty etc.

• 辐射井产水量减少的主要原因是渗流途径不畅，表现在井底过滤层堵塞、辐射管诱蚀、渗水孔堵塞、砂层淤塞和河流改道。