Flexible composite pipe underground laying method capable of quickly collecting pipes without excavating

Abstract

The invention discloses a flexible composite pipe underground laying method capable of quickly collecting pipes without excavating. The flexible composite pipe underground laying method is characterized in that outer sleeves are pre-embedded into excavated pipe ditches; flexible composite pipes for construction penetrate into the outer sleeves through traction equipment to form pipe-in-pipe collecting and conveying pipelines; after use is completed, special machinery is used for withdrawing the composite pipes from the sleeves, and the composite pipes are transported to needed places for being recycled again; in a pipe laying process and a pipe taking process, the outer sleeves form flexile composite pipe laying channels, and further provide protection for the flexible composite pipes, so that the flexible composite pipes are prevented from being damaged by mechanical external force; traction steel wires are matched for performing dragging operation on the flexible composite pipes, so that working efficiency is improved, and the flexible composite pipes further can be effectively prevented from being damaged by traction force applied by a power vehicle; and while the operation efficiency is improved, the flexible composite pipes are repeatedly utilized, so that ground engineering construction cost can be greatly reduced.

Description

technical field [0001] The invention relates to a rapid construction technology for gathering and transporting pipes in oil and gas fields, in particular to a buried laying method for flexible composite pipes capable of rapid non-excavation pipe collection. Background technique [0002] In order to alleviate the oil field corrosion problem, non-metallic pipelines, as an effective way to solve the corrosion problem of the ground gathering pipeline network, have been more and more widely used in some new projects and reconstruction and expansion projects. The most typical representative is flexible composite pipe, also known as coilable reinforced thermoplastic composite pipe or continuous composite pipe, etc. The typical product structure is three layers. The flexible composite pipe not only has the characteristics of traditional non-metallic pipes such as corrosion resistance and small conveying resistance, but also has the characteristics of good flexibility, a single lengt...

AI Technical Summary

Problems solved by technology

After the construction of the traditional method, the flexible composite pipe is buried at the bottom. If it is to be reused, it needs to be excavated again. On the one hand, the excavation is extremely difficult, and the pipe may be damaged during the excavation process and cannot be reused; on the other hand, The excavation efficiency is low, especially at the position close to the pipe body, manual excavation is required, the degree of mechanization is not high, the efficiency is low, and the safety is low, which is time-consuming and expensive

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