钻井成井中机械洗井方法的适用条件与效果

根据多年来从事水文地质钻井成并工作的经验，结合具体工程实例，对活塞、空压机、泥浆泵、清水泵，接力泵等洗井方法的性能和应用条件作了一些总结，但对于井管直径较大或井水较深的管井，采用联合洗井方法往往可以扬长补短，改善单种洗井方法效果不理想的状况，并取得洗井的最佳效果。

Applied Conditions and Effect of Mechanic Flushing Well Method in The Well Completion of Drill Well

Based on the experiences of well comp letion of hydrogeological drill well during many years,and combine with concrete en-gineering examples,the summation h as been made for functions and applie d conditions of flushing well method s,such as piston,air compressor,mud pump,water pump,re lay pump and so on.But in the tube well which there are bigger diameter and d eeper water level,application of combinatory f lushing well method may be develop strong points and avoid shortcoming,a nd obtain optimal effect of flushing well.