水文孔成井阶段的洗井方法和适用条件

水文孔施工中洗井是管井成井工艺中的一个主要环节,各种洗井方法都有它的优点和一定的应用条件,其工作效果与含水层的类型、地下水压力、钻进泥浆的指标、井管材质、井身结构、以及井深浅程序有着密切的关系。要提高洗井效率,只有结合具体情况,选择合适的方法才能取得较好的洗井效果。

WASHING METHODS DURING PERIOD OF WELL COMPLETION AND ITS APPLICABLE CONDITION

Washing well is a key process in the craft of well construction by drilled well in the hydrology hole construction,every method of washing well has its own merit and certain application condition.Its work effect nearly relates to the type of water-bearing stratum,the pressure of underground water,the index of drilling mud,the material quality of well tube,the structure of well,as well as the deepness of well.If we want to enhance the efficiency of washing well,we have to choose the appropriate method by the specific condition,and then we are able to obtain the better effect of washing well.