对于钻探漏水、掉块复杂地层，用灌注水泥进行护壁堵漏，方法简便，货源广，成本低，效果好。经多次的实践证明，为使灌灰过程安全和提高灌灰的成功率，必须注意如下几个问题。一、确定漏水、掉块的位置在钻进中如遇返水变小、水泵压力降低、进尺突 For drilling leaks and complex blocks, using plugging cement for wall plugging, the method is simple, wide supply, low cost and good results. After several times of practice, it has been proved that in order to make the process of filling ash safe and improve the success rate of ash filling, we must pay attention to the following questions. First, determine the location of water leakage and block loss. If the return water becomes smaller during drilling, the pressure of the water pump will decrease, and