An active low additional force pipeline effect protection method

Abstract

The invention discloses an active low additional force protection method for pipeline routing effect: (1) calculate the pipeline routing value that will be generated by the pipeline when no protective measures are taken; (2) according to the structural bearing capacity of the area where the pipeline is located, Calculate the maximum pipeline displacement that can be tolerated as the target value of the pipeline control; (3) Based on the target value of the pipeline control, apply variable axial resistance to the end of the pipeline, and calculate the actual displacement of the pipeline under the action of the variable axial resistance. Pipeline value; repeatedly adjust the function of the change of the resistance value with the axial displacement, so that the actual pipe routing value is less than the pipe routing control target value; (4) Design the additional structure at the end of the pipe so that the additional structure slides along the axial direction of the pipe When , the additional structure can generate axial resistance to the pipeline according to the change function of the resistance value with the axial displacement. The invention achieves the purpose of controlling and eliminating the pipe routing effect of deep-sea pipelines by interfering with and inhibiting the fundamental mechanism of the pipe routing.

Description

technical field [0001] The present invention relates to the axial in-situ stability design of deep-sea oil pipelines, in particular to an active low additional force protection method for pipeline routing effects, which actively eliminates pipeline routing effects by actively interfering with the generation mechanism of pipeline routing effects effect, reducing the risk of axial instability and damage to the piping system. Background technique [0002] There are still a large number of high-quality oil resources to be developed in my country's deep sea areas. The development of deep sea oil exploration technology and equipment is of great significance to solve the dilemma of my country's shortage of oil resources. The pipeline system is an important means of collection and distribution in deep-sea oil exploitation. The temperature of oil resources transported by deep-sea pipelines is extremely high, and in order to ensure the safe operation of pipelines, routine maintenance ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide an active low additional force pipeline effect protection method to solve the problem of high additional force anchoring structure in the existing pipeline protection practice with high cost and unsatisfactory The problem of high certainty and poor protection effect achieves low-cost and high-yield engineering results

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