自动压气活塞洗井在弱承压含水层地浸中的应用

Application of Automatic Pneumatic Piston Well Washing in a Weakly Pressure-bearing Mining Area of a Uranium Deposit

某铀矿床弱承压采区,采用常规空压机洗井时,存在洗井效果差、清洗难度大等问题。结合弱承压矿床承压水头低的特点,进行了不同的洗井方式及参数研究。研究表明,自动压气活塞洗井方法的洗井效果良好,采区抽注液量由80 m^(3)/h提升至95 m^(3)/h。该洗井方法在弱承压矿床地浸工艺钻井清洗中具有一定的推广价值。

In the weak pressure-bearing mining area of a uranium deposit,there are some problems,such as poor effect of well washing and difficulty in cleaning,when conventional air compressor is used to wash wells.Combined with the characteristics of low bearing water head in weakly pressure-bearing ore deposit,different well washing methods and parameters are set.The results show that the well washing effect of automatic pneumatic piston is good,and the pumping fluid volume in the mining area increase from 80 m^(3)/h to 95 m^(3)/h.It has a certain popularization value in the well washing of in-situ leaching in weakly pressure-bearing ore deposits.