有线控向技术在定向钻穿越施工中的应用

Application of Wired Directional Control Technology in Directional Drilling Crossing

有线控向系统控制精度高,适用于在大、中型定向钻机上进行深、长管道穿越。介绍了定向钻穿越有线控向的工作原理和操作步骤,给出了定向钻穿越相关参数的计算式,为提高定向钻穿越过程中的控向操作及操作过程中的偏差计算提供了理论及实践依据。

Directional drilling is chosen firstly in crossing construction such as crossing through rivers or roads along with the strengthening of modern civilization and environmental conscious-ness. In recent years, the technology of directional drilling develops quickly, with its positioning-directional control system becomes more accurate, cheaper and its scope becomes wider and wider. Now the wired directional control system is often used in engineering for its more accurate controlling, which applies to big directional rigs when crossing deeper and longer. This article in-troduces the principle and operational process of wired directional technology, which provides the basis of theory and practice for directional operation.