油气管道定向钻穿越技术

Petroleum Pipeline Crossing with Directional Drilling Technique

较系统地论述了管道定向钻穿越技术,介绍了定向钻的组成、施工程序以及国内部分管道定向钻工程的施工实例,对穿越过程中的主要问题进行了探讨,如穿越位置、穿越地层、穿越管道埋深的确定,入、出土点位置的选择,穿越曲线的设计等,分析了回拖力的计算及相关参数,根据管道定向钻实际施工经验,提出了设计过程中应注意的事项。

Directional drilling technique is systematically illustrated in this paper, including the composi- tion of directional drilling machine, determinations of crossing position, crossing stratums and buried depth of the pipeline, selection of entering and exiting ground points as well as the design of crossing curve. The calcu- lation of back-towing force and corresponding parameters are also analyzed. Based on practical experience in di- rectional drilling construction, the matters for attention in design phase and proposal for reference are provided.