辐射井修复改造技术

The Technique of Restoration and Modification of Radiation Wells

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。修复改造辐射井主要是通过重新铺设井底反滤层、增打或加长辐射管、大修渗水孔、铲除井周围的淤积层和埋没渗渠等办法。通过对泌阳县和油田等几口井的修复改造，产水量可增产数倍，仅用打井投资的1／3～1／5，即可使一口废旧井焕发青春。

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. Measures of solvingthese problems include relaying bottomhole filter layer,increasing the number of radiant tubes or elongating radianl tubes, and repairing seepage holes etc. Through restoration and modification, aquifer yield can increase by sevcral times. An abandoned well can be put into production again at the cost of 1/3 - 1/5 of the investment needed to drill a new well.