Thermal Expansion of Deep-Sea Pipeline with Inline Manifold

Abstract

Abstract:

In wet development of deep water oil and gas, subsea pipeline is connected to subsea wells or manifold by jumpers at the middle or the ends. The temperature profile of pipeline with inline manifold is discontinuous, and like that of two pipelines connected together. Finite element analysis can accurately predict the expansion displacement, but the analysis is complex and time consuming. Based on an actual project, using analytical method, we develop an in-house work sheet to calculate the displacements of pipeline with inline manifold and discontinuous temperature profile. The calculation method has been verified by finite element analysis and reviewed by a third party. The method is applicable to engineering projects.

Key words: subsea pipeline, expansion, inline manifold, effective axial force

CLC Number:

TE973.92

Xiu-feng LI, Xian-hong FENG, Dang ZHAO. Thermal Expansion of Deep-Sea Pipeline with Inline Manifold[J]. Ocean Engineering Equipment and Technology, 2015, 2(1): 28-31.

Figures/Tables 8

Fig.1

Fig.2

Fig.4

Table 1

Table 2

Fig.5

Fig.6

属性	取值
外径/mm	168.3
壁厚/mm	15.7
材料密度/(kg·m^-3)	7881
杨氏模量/GPa	207
热膨胀系数/K^-1	1.17×10^-5
泊松比	0.3
外防腐层厚度/mm	2.8
外防腐层密度/(kg·m^-3)	930
管道长度/m	19239
在线三通接入位置/m	3935
介质入口温度/°C	72.3
介质出口温度/°C	17.4
设计压力/MPa	27.0
介质密度/(kg·m^-3)	5.3
水深/m	357
环境温度/°C	15
管土轴向摩擦系数	0.38

结果项	Mathcad程序计算结果	Abaqus有限元计算结果
热端膨胀量/mm	143	145.7
冷端膨胀量/mm	68	70.5
在线三通处膨胀量/mm	38	34
最大有效轴向力/kN	336	301.9

[1]	Gu B, Song S, Chacko J, et al.Offshore Pipelines[M]. Burlinton: Elsevier, 2005: 65-68.
[2]	周晓红,贾旭,徐阳,等.海洋石油工程----海底管道设计[M].北京:石油工业出版社, 2007: 168-171.
[3]	Bokaian A.Thermal expansion of pipe-in-pipe systems[J]. Marine Structures, 2004,17: 475. doi: 10.1016/j.marstruc.2004.12.002 URL
[4]	Det Norske Veritas.DNV-OS-F101-2000. Submarine pipeline system[S]. 2005.

[1]	LIU Rong-kun, LI Jia-jun, LENG Ya-lin, WANG Xin, WANG Tian-yi, CAO Hong-tao, WU Ding, WANG Xiao-xuan. Study on Temperature Effects and Thermal Correction on Dimension of Steel Modules [J]. Ocean Engineering Equipment and Technology, 2019, 6(2): 544-547.
[2]	LUO Shi-yong, WANG De-jun, LIU Xiao-xia, HUANG Jun. Application of Flexible Pipe in Deepwater Subsea Pipeline [J]. Ocean Engineering Equipment and Technology, 2018, 5(增刊): 53-56.
[3]	WANG Chao. Small Groove SMAW Process Experiment Investigation in Deepwater Subsea Pipeline Welding [J]. Ocean Engineering Equipment and Technology, 2018, 5(增刊): 65-68.
[4]	SUN Guo-min, ZHANG Jie, Xü Zhi-hui. Damage Assessment of In-Service Subsea Pipeline [J]. Ocean Engineering Equipment and Technology, 2018, 5(6): 400-404.
[5]	XING Guang-kuo, WANG Chang-tao, WANG Feng-yun, ZHANG Mei-rong, ZHANG Peng-fei. Installation Analysis of S-Lay Pipeline End Termination [J]. Ocean Engineering Equipment and Technology, 2018, 5(2): 129-132.
[6]	WANG Meng, ZHAO Dong-yan. Strength Assessment on Corroded Subsea Pipeline Based on the Code of DNV-RP-F101 [J]. Ocean Engineering Equipment and Technology, 2017, 4(5): 276-280.
[7]	HUANG Yu, BAO Jia. Development in Deepwater Pipe Laying [J]. Ocean Engineering Equipment and Technology, 2017, 4(5): 281-286.
[8]	LIU You-li, XIONG Rui, YUAN Ju-yang, HONG Sen. Application of New Field Joint Coating Process to Subsea Pipeline Laying [J]. Ocean Engineering Equipment and Technology, 2017, 4(3): 168-172.
[9]	YANG Lian-feng, ZHANG Xiao-jian. Application of Wet Recovery Technology in the Process of Subsea Pipeline Repairing [J]. Ocean Engineering Equipment and Technology, 2016, 3(4): 217-221.
[10]	JIA Zhen. Development of an Auto On-Off Pouring Mold Used in Field Joint Installation of GSPU Thermal Insulation Pipe [J]. Ocean Engineering Equipment and Technology, 2016, 3(1): 52-57.
[11]	Miao-er LIU, En-dao LI, Quan-sen YIN, Xiao-liang TAI. Study on the Pilot Plant’s Capacity of Floating Liquefied Natural Gas Processed by Propane Pre-Cooling and Dual-Nitrogen-Expansion Sub-Cooling [J]. Ocean Engineering Equipment and Technology, 2015, 2(3): 152-156.
[12]	Xiu-feng LI, Xian-hong FENG. Subsea Pipeline Span Analysis Based on Fatigue Life [J]. Ocean Engineering Equipment and Technology, 2015, 2(3): 196-200.
[13]	Jie ZHANG, Guo-min SUW, Hong-qi MA, Guo-yang LAN. Subsea Pipeline Appendage Finite Element Analysis and Comparison of Different Checking Criteria [J]. Ocean Engineering Equipment and Technology, 2015, 2(2): 93-98.
[14]	Jing YE, Lie-jin GUO, Sen-lin CHEN, Qing-ping LI, Nai-liang LI. Comparative Experimental Study on Severe Slugging Characteristics in Different Riser Shapes [J]. Ocean Engineering Equipment and Technology, 2015, 2(1): 18-22.
[15]	Zi-peng ZHOU, Wen-jun ZHONG, Mei-zhen ZHOU, Guo-min SUN, Le-qin WANG, Chun-hong HU. Application of Subsea Structure Scouring Incipient Assessment Based on FLUENT in Indonesia Subsea Pipeline Project [J]. Ocean Engineering Equipment and Technology, 2015, 2(1): 45-49.