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工作地区主要以奥陶纪石灰岩地层为主。属岩溶裂隙含水层。抽水前用传统的压风机检查堵孔和套管止水质量比较困难,我们主动地利用水文地质测井方法进行检查。通过三年来几十个孔次的实践,证明利用水文地质测井方法检查堵孔和套管止水,是行之有效的方法,井场工作时间短,只要几个小时就可以了。并可以定性地判断漏水量的大小。
The work area is mainly dominated by Ordovician limestone formations. Is a karst fracture aquifer. It is difficult to check the plugging holes and casing water quality with the traditional pressure blower before pumping water. We actively use hydrogeological logging methods to check. Through the practice of dozens of holes in three years, it is proved that it is an effective method to inspect the blocking holes and the casing water stop by using the method of hydrogeological well logging. The working time of the well site is short, just a few hours. And you can qualitatively determine the size of water leakage.