在定向钻主-套管夹层内敷设光缆可行性分析

Feasibility Analysis of Laying Optical Cable in Main-Casing Interlayer of Directional Drilling

对外加保护套管的燃气管道定向钻施工,提出一种光缆敷设新方法:在主-套管夹层中敷设光缆。介绍常规定向钻同孔敷设光缆方案、在主-套管夹层中敷设光缆方案的施工工艺,从技术可行性、经济可行性、技术安全风险方面进行分析,指出在主-套管夹层中敷设光缆的技术要点。在主-套管夹层中敷设光缆方案造价很低,技术可行性高,施工简单,是一种性价比较高的敷设方式。

For directional drilling construction of gas pipeline with external protective casing,a new method of laying optical cable is proposed: laying optical cable in the main-casing interlayer. The construction technologies of the scheme of laying optical cable in the same hole of conventional directional drilling and the scheme of laying optical cable in the main-casing interlayer are introduced. The technical feasibility,economic feasibility and technical safety risk are analyzed,and the technical key points of laying optical cable in the main-casing interlayer are pointed out. The scheme of laying optical cable in the main-casing interlayer has low cost,high technical feasibility and simple construction. It is a cost-effective laying method.