高水位地区有限作业空间条件下道路穿越直铺管技术的应用——以中石油管道局沙特拉斯坦努拉管道EPC项目道路穿越为例

Direct Pipe (DP) for Road Crossing in High Ground Water & Restricted Area—Illustrated by CPP Reroute Pipelines in Ras Tanura Area Project

长输油气管道道路穿越技术已经比较成熟,如直铺管技术、顶套管穿越、定向钻穿越等技术。在不同条件下,不同的穿越技术的应用对于项目成本、工期、安全等方面有着较大的影响。本文以中石油管道局沙特拉斯坦努拉管道EPC项目道路穿越为例,阐述了高水位地区有限作业空间条件下道路穿越直铺管技术的应用,详细描述了该技术的工艺流程及对应的施工技术要点。

Trenchless techniques have been well developed in the pipeline installation industry for the transportation of oil &gas, for instance, Direct Pipe, Micro Tunneling, Horizontal Directional Drilling (HDD) etc. Each technique has its own advantages in certain circumstances, and the impacts on the project are different in terms of cost, schedule, HSE etc. Herein, the process and detailed procedure of Direct Pipe Technique has been illustrated for road crossing in high ground water &restricted area, which has been applied in CPP reroute pipelines in Ras Tanura area project.