石灰岩地层机井综合洗井增水技术研究与应用

Research & application on the comprehensive Technology of well washing and water increase in limestone Stratum

对于石灰岩地层出水量小于5m3/h的机井,采取单一的洗井增水方法效果一般不明显。笔者经过多年的研究与应用,提出了先对井孔进行爆破,然后利用盐酸与二氧化碳联合洗井的综合洗井增水技术,则往往能够取得较好的增水效果,一般增水率在60%以上。该项技术为石灰岩山区小水量的机井的开发提供了技术保证,具有广阔的发展应用前景。

In the limestone stratum, for the well that the water outflow less than 5m^3/h, generally, it only take well washing and increase water measures which is without obvious effects. Through the author's research and practice for many years, proposed that blow up the well hole firstly, then conjunctively use comprehensive technology of well washing and water increase with HCl and CO_2, that always obtained better results to increase water amount. In general, the water increase rate is more than 60%. This technology provides the technical guarantee for increase water outflow of well in limestone stratum. There are broad prospects on application and development.