内压作用下耐磨胶带层对非黏结柔管扭转特性的影响

doi:10.16183/j.cnki.jsjtu.2023.163

上海交通大学学报 ›› 2025, Vol. 59 ›› Issue (1): 121-130.doi: 10.16183/j.cnki.jsjtu.2023.163

内压作用下耐磨胶带层对非黏结柔管扭转特性的影响

罗春苗¹^,², 付世晓¹^,²(), 张萌萌¹^,², 陈鲲鹏¹^,², 崔晓轩³

1.上海交通大学海洋工程国家重点实验室,上海 200240
2.上海交通大学海洋装备研究院,上海 200240
3.浙江恒安泰石油工程有限责任公司,浙江舟山 316000

收稿日期:2023-04-28 修回日期:2023-05-17 接受日期:2023-05-22 出版日期:2025-01-28 发布日期:2025-02-06
通讯作者: 付世晓,教授,博士生导师,电话(Tel.):021-34207053-2052;E-mail:shixiao.fu@sjtu.edu.cn.
作者简介:罗春苗(1998—),硕士生,从事非黏结软管截面力学性能研究.
基金资助:
上海市晨光计划(21CGA15);国家自然科学基金基础科学中心项目(52088102);中央高校基本科研业务费专项资金(22X010201787)

Effect of Wear-Resistant Tape Layers on Torsional Characteristics of Unbonded Flexible Pipes Under Internal Pressure

LUO Chunmiao¹^,², FU Shixiao¹^,²(), ZHANG Mengmeng¹^,², CHEN Kunpeng¹^,², CUI Xiaoxuan³

1. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
2. Institute of Marine Equipment, Shanghai Jiao Tong University, Shanghai 200240, China
3. Heng’antai Petroleum Engineering Co., Ltd., Zhoushan 316000, Zhejiang, China

Received:2023-04-28 Revised:2023-05-17 Accepted:2023-05-22 Online:2025-01-28 Published:2025-02-06

摘要/Abstract

摘要：

非黏结柔管在海洋油气田的开发中得到广泛应用,其扭转平衡是保证作业期间结构安全的重要原则,然而现有分析理论简化假设较多,导致仍有非黏结柔管设计出现扭转不平衡现象.为了提高扭转模拟的准确性,不影响管道实际使用,本文聚焦现有设计分析中所忽视的螺旋铠装内外侧耐磨胶带,基于理论推导,建立耐磨胶带层扭转刚度及弹性模量修正算法,结合有限元模型,探究胶带层叠压对于非黏结柔管整体扭转的影响.结果显示,采用经过修正的胶带层弹性模量所得管道扭转结果更接近实测结果,对实际工程应用具有一定的指导意义.进一步研究发现,非黏结软管的整体扭转角与耐磨胶带的宽度正相关,与耐磨胶带的铺设角负相关,而随着叠压率增加,管道扭转角减小.

关键词: 非黏结柔性管, 耐磨胶带, 扭转平衡, 修正弹性模量, 敏感性分析

Abstract:

Unbonded flexible pipe has been widely used in the offshore oil and gas industry and its torsional balance plays an important role in safety insurance during the whole service life. However, there are still torsional imbalances due to simplifying assumptions in the current analytical theory. To improve the accuracy of torsion simulation and reduce the impacts on the practical applications of the pipelines, this paper focuses on the wear-resistant layer neglected in previous studies. Based on theoretical derivation, in combination with the finite element method, a correction algorithm for the torsional stiffness and elastic modulus of the tape layer is developed to investigate the effect of tape layer stacking on the overall torsion of the unbonded flexible pipe. The results show that overall torsion results obtained by using the corrected elastic modulus of the tape layer are closer to the test results, which have guiding significance for practical applications. Further sensitivity research shows that the width of the tape layer is positively correlated with the flexible pipe torsion angle, while the tape laying angle is negatively correlated with the overall torsion angle. With an increase in the stacking ratio of the tape, the pipeline torsion angle decreases.

Key words: unbonded flexible pipe, wear-resistant tape, torsional balance, corrected elastic modulus, sensitivity research

中图分类号:

O39
TE53

罗春苗, 付世晓, 张萌萌, 陈鲲鹏, 崔晓轩. 内压作用下耐磨胶带层对非黏结柔管扭转特性的影响[J]. 上海交通大学学报, 2025, 59(1): 121-130.

LUO Chunmiao, FU Shixiao, ZHANG Mengmeng, CHEN Kunpeng, CUI Xiaoxuan. Effect of Wear-Resistant Tape Layers on Torsional Characteristics of Unbonded Flexible Pipes Under Internal Pressure[J]. Journal of Shanghai Jiao Tong University, 2025, 59(1): 121-130.

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参考文献 16

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层号	层名	材料	内径/mm	螺旋铺设角/(°)	铺设根数
1	骨架层	不锈钢	236.5	88	1
2	胶带层1	MOPP	247.5		1
3	内护套层	HDPE	249.1
	抗压层4层	高强度碳钢		72~77	1
	胶带层4层	MOPP		75~88	1
12	抗拉层1	高强度碳钢	308.5	33.0	66
13	胶带层6	MOPP	316.5		1
14	抗拉层2	高强度碳钢	318.9	-32.0	68
15	胶带层7	MOPP	326.9		1
16	外护套层	HDPE	328.1

材料名称	弹性模量/GPa	泊松比
不锈钢	205	0.30
高强度碳钢	210	0.30
HDPE	0.348	0.49
MOPP	9.94	—

内压/MPa	总扭转角/(°)
4.5	1.18
6	0.67
8	0.84
10	0.17
12	-0.34
14	-0.67

耐磨层编号	E_eq /MPa
1	6.89
2~5	11.10
6	15.51
7	31.02

内压作用下耐磨胶带层对非黏结柔管扭转特性的影响

Effect of Wear-Resistant Tape Layers on Torsional Characteristics of Unbonded Flexible Pipes Under Internal Pressure

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