定向钻双曲线技术在施工中的应用

Application of Directional Drilling Hyperbolic Technology to Construction

城市管网建设过程中遇到的障碍物越来越多,造成管线铺设的空间越来越紧张。为了解决此难题,以中国海洋石油丽水气田陆管36-1管道瓯江路穿越项目为例,通过采用水平定向钻双曲线(叠加曲线)施工技术,实现了有限空间多次水平转角的施工,并分析了施工关键技术点和风险,提出了应对方案。

As the city pipeline network encounters more obstacles during construction phase, pipeline laying is inadequate of space. To resolve the above problem, in which case of Oujiang Road crossing project of CNOOC Lishui 36 - 1 Gas Field Land Pipeline was illustrated, horizontal azimuth angle was repeatedly constructed in confined space by using hyperbola construction technique （ superimposed curve） of horizontal directional drilling. This paper proposes the solutions and provides new idea of pipeline laying under limited site condition.