兰州石化-中川机场航煤管道工程定向钻穿越黄河施工方法

Crossing by Directional Drilling for Crossing Yellow River in Lanzhou Petrochemical-Zhongchuan Airport Aviation Kerosene Pipeline Project

文中从地形地貌、气候条件、工程地质和设计方案等方面详细介绍了黄河定向钻穿越的设计情况,从夯套管施工、导向孔钻进、管道预制、扩孔和管道回拖等方面详细介绍了黄河定向钻穿越的施工情况,介绍了施工过程中存在的问题和采取的解决措施,最后对定向钻穿越施工方法进行了总结,并提出了建议。

The design of directional drilling across the Yellow River was introduced in detail from the aspects of topography,climate,engineering geology and design scheme.The construction of directional drilling across the Yellow River was introduced in detail from the aspects of ramming casing construction,guiding hole drilling,pipe prefabrication,reaming and pipe back to drag.This paper introduced the problems existing in the construction process and the measures taken to solve them.Finally,the construction method of directional drilling and crossing was summarized and some suggestions were put forward.