海底管侧向屈曲激发设计应用及验证
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作者单位:

1.海洋石油工程股份有限公司;2.中海石油(中国)有限公司天津分公司

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基金项目:

深水半潜式生产储能卸油平台工程开发


Application and Verification of Subsea Pipeline Lateral Buckling Initiator
Author:
Affiliation:

1.Offshore Oil Engineering Co.,Ltd;2.China National Offshore Oil Co.,Ltd Tianjin

Fund Project:

MC-202030-H04

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    摘要:

    本文介绍了国内首次进行海底管道侧向屈曲激发的工程设计应用和基于投产后调查的验证以及再分析。本文进行了基于蒙特卡洛分析方法的侧屈模式计算,并结合有限元分析,实现了对可接受虚拟锚固间距的筛选,形成了海底管道侧屈控制的基础。本文还根据铺设后调查,对管道铺设后不直度、沉降值等数据进行分析,首次发现了南海海底管道由于孤立波造成的海床沉积物不均匀沉积的直接证据。投产后调查验证了侧屈激发装置的有效性,并根据膨胀、侧屈量进行重新分析,验证了管土作用参数。本文研究结论对深水高温高压海底管道设计与建设以及管土作用参数的计算有一定的指导意义。

    Abstract:

    This paper introduces the engineering application of lateral buckling initiator of subsea pipelines for the first time in China and the verification and re-analysis based on post-production investigation. In this paper, the calculation of the lateral buckling based on the Monte Carlo analysis method is carried out, and combined with the finite element analysis, the screening of acceptable virtual anchor spacing is realized, forming the basis for the lateral buckling control of subsea pipelines. Based on the post-laying investigation, the data such as the out of straightness and settlement value of the pipeline after laying were analyzed, and for the first time, direct evidence of uneven sediment deposition of the seabed sediment caused by solitons in the South China subsea pipeline was found. According to the post-commissioning investigation, the effectiveness of the lateral buckling initiator device was verified, and the parameters of the pipe-soil interaction were verified according to the expansion and lateral buckling distance. The research conclusions of this paper have certain guiding significance for the design and construction of deep-water, high-temperature and high-pressure submarine pipelines and the calculation of pipe-soil parameters.

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  • 收稿日期:2022-03-13
  • 最后修改日期:2022-04-26
  • 录用日期:2022-04-29
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