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Temporary control system and method for floating buckling of land buried pipeline

A technology for buried pipelines and pipelines, which is applied in the directions of pipeline laying and maintenance, pipes/pipe joints/pipes fittings, mechanical equipment, etc., can solve problems such as unfavorable complete sets of pipelines floating and buckling prevention technology, temporary control measures that have not been publicly described, etc. The effect of extending the length, ensuring safety and convenient operation

Pending Publication Date: 2019-09-20
CHINA PETROLEUM ENG & CONSTR +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few reports on the treatment ideas and methods after the pipeline buckling occurs, and there is no public statement on the temporary control measures, which is not conducive to the formation of a complete set of pipeline buckling prevention technology

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  • Temporary control system and method for floating buckling of land buried pipeline
  • Temporary control system and method for floating buckling of land buried pipeline

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Embodiment Construction

[0027] The invention discloses a temporary buckling control system for ground buried and floating on land, which includes a target control pipe section, an auxiliary control pipe section, a pipeline lifting system, a pipeline strain detection system, a positioning elevation measurement system, and a pipeline support system; the target control pipe section includes Buried pipelines that buckle when floating and need to be adjusted and protected; the auxiliary control pipe section includes remote lifting pipe sections located upstream and downstream of the buckled pipe section; the pipeline lifting system includes several pipes distributed along the pipeline for adjusting the curvature The hoisting equipment and force transmission device of the radius; the strain detection system includes several strain rosettes and data collection devices arranged on the pipeline; the positioning elevation measurement system includes a pipeline elevation monitoring and analysis system installed o...

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Abstract

The invention discloses a temporary control system and method for floating buckling of a land buried pipeline. The system comprises a target control pipe section and an auxiliary control pipe section, wherein the target control pipe section is composed of a floating buckling section pipeline body, an upstream extension pipeline and a downstream extension pipeline; the auxiliary control pipe section is composed of an upstream far end auxiliary lifting section and a downstream far end auxiliary lifting section; and lifting points and strain rosettes are arranged on the target control pipe section and the auxiliary control pipe section, cushion layers are arranged at the suspension positions of the land buried pipeline, and covering layers are arranged at the exposed positions of the land buried pipeline. By adjusting the bending postures of a floating buckling section and upstream and downstream connecting sections of the floating buckling section and using an auxiliary bending pipe section to absorb the pipeline additional axial deformation quantity caused by excavation, so the purposes of uniform distribution and total control of stress are achieved, the stress and strain of pipelines everywhere are monitored, the safety of continuing service of the pipelines is guaranteed, and abundant analysis time and favorable construction conditions are created for follow-up study to develop a complete buckling control scheme. The system is clear in principle, quick in construction and good in motility.

Description

technical field [0001] The invention relates to a temporary control system and method for floating and buckling of buried pipelines on land. Background technique [0002] With the continuous development of onshore oil and gas fields, the number of production wells with high temperature and high pressure oil and gas production is increasing, which puts forward higher requirements for the strength and stability design of oil and gas gathering and transportation pipelines and accessories, and the guarantee of medium flow. Pipeline buoyancy buckling is a kind of overhead bending form formed by the release of thermal expansion displacement after the pipeline releases thermal expansion displacement after the partial upward force of the curved pipe section increases due to axial thermal expansion and extrusion, which is greater than the covering soil and the downward pressure of its own weight. The problem of pipeline stability destruction. Pipeline systems that pass the strength ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L1/028F16L1/06
CPCF16L1/028F16L1/06
Inventor 陈俊文汤晓勇梁俊奕郭艳林杨帆谌贵宇夏成宓张朱慧王晓玉孙明张庭昝林峰胡连锋樊曾
Owner CHINA PETROLEUM ENG & CONSTR
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