厚松散层钻探工艺技术

THE DRILLING TECHNOLOGY IN THE DEEP INCOMPACT STRATA

在厚松散层中进行钻孔施工较常规钻孔存在一些技术难题,按照常规方法达不到钻孔目的或者花费较大的人力和物力。本文通过分析松散层钻孔正常钻进的影响因素,采用正循环钻孔施工技术进行施工,提出钻孔防偏和纠偏措施,最后给出了厚松散层钻孔施工技术措施,对厚松散层钻探技术具有一定的指导意义。

There are often some technical problems in drilling in the deep incompact strata . By conventional methods the satisfactory result can＇t be achieved or it takes too much labor force or material resource. This paper , by analyzing the factors that influence the drilling in deep incompact strata , adopts the methods of drilling in normal recurrence , proposes measures to prevent and correct decline , and finally provides a proper way to drill in the deep incompact strata . This paper will be helpful and constructive in the process of deep incompact strata.