|
|
|
|
|
Zhaohui Hong, Dengfeng Fu, Wenbin Liu, Zefeng Zhou, Yue Yan and Shuwang Yan
Subsea pipelines are commonly employed in the offshore oil and gas industry to transport high-pressure and high-temperature (HPHT) hydrocarbons. The phenomenon of pipeline walking is a topic that has drawn a great deal of attention, and is related to the...
ver más
|
|
|
|
|
|
|
|
|
|
|
Damir Karabaic, Marko Kr?ulja, Sven Maricic and Lovro Liveric
The most commonly used subsea pipeline installation method is the S-Lay method. A very important and complex task in an S-Lay installation engineering analysis is to find the optimal pipelay vessel installation configuration for every distinctive pipelin...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhenyu Li, Gang Wang, Shaoming Yao, Feihong Yun, Peng Jia, Chao Li and Liquan Wang
To predict the sealing performance of the subsea pipeline compression connector, a semi-analytical method is proposed and verified. The leakage condition is obtained as a function of the minimum radial deflection. The semi-analytical method consists of t...
ver más
|
|
|
|
|
|
|
|
|
|
|
Fengming Du, Cong Li and Weiwei Wang
Oil and gas exploration is a sector which drives the global economy and currently contributes significantly to global economic development. The safety of subsea pipelines is deeply affected by factors such as pipeline buckling, corrosion and leakage. Onc...
ver más
|
|
|
|
|
|
|
|
|
|
|
Seongjin Song and Sunho Park
In this paper, numerical studies were carried out on scour around a subsea pipeline. A coupled solver between computational fluid dynamics (CFD) and discrete element method (DEM) was selected to simulate fluid flow and particle interactions. To select an...
ver más
|
|
|
|
|
|
|
|
|
|
|
Vladimir Rykov, Olga Kochueva and Mais Farkhadov
Environmental safety issues are of particular importance when we design and operate underwater transport systems. To ensure the transport systems function safely, special systems to monitor their condition are being created. Underwater pipeline monitorin...
ver más
|
|
|
|
|
|
|
|
|
|
|
Bochen Duan, Shengping Wang, Changlong Luo and Zhigao Chen
In recent years, the surge in marine activities has increased the frequency of submarine pipeline failures. Detecting and identifying the buried conditions of submarine pipelines has become critical. Sub-bottom profilers (SBPs) are widely employed for pi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Muhammad Zahid Jiwa, Young Tae Kim, Zahiraniza Mustaffa, Seungjun Kim and Do Kyun Kim
Traditionally, subsea pipelines designed for the transportation of oil, gas, and water are constructed using carbon steel due to its strength, toughness, and ability to operate at temperatures up to 427 °C. However, polyethylene (PE), especially its high...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ruoxuan Li, Bai-Qiao Chen and C. Guedes Soares
This paper focuses on the buckle propagation pressure of a pipe-in-pipe system under uniform external pressure. After the validation of the finite element model used in this research, several effects were studied. At first, the effects of the initial imp...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ruoxuan Li, Bai-Qiao Chen and C. Guedes Soares
The effect of ovality length on imperfect sandwich pipes is investigated using the finite element method in the scenario of local buckling under external pressure. First, the finite element model of the imperfect sandwich pipelines is established in ANSY...
ver más
|
|
|
|
|
|
|
|
|
|
|
Fenghui Han, Yuxiang Liu, Qingyuan Lan, Wenhua Li and Zhe Wang
Double-curved pipes are widely employed as essential components of subsea pipeline systems. Considering the layout flexibility and application diversity, there are various spatial structures for the double-curved combinations. However, few studies have c...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhenkui Wang and C. Guedes Soares
Buckle-initiation techniques, such as sleepers, are usually installed to trigger lateral buckling at pre-designated locations to release the axial compressive forces induced by thermal loading. Taking the nonlinear pipe?soil interaction model into accoun...
ver más
|
|
|
|
|
|
|
|
|
|
|
Bai-Qiao Chen, Paulo M. Videiro and C. Guedes Soares
A vision of the digital twins of the subsea pipelines is provided in this paper, with a coverage of the current applications and the challenges of the digital twins in the design, construction, service life, and assessments of life extension. Digital twi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ji-Hong Li, Mun-Jik Lee, Hyungjoo Kang, Min-Gyu Kim and Gun Rae Cho
ROV trencher is a kind of ROV which trenches the sea floor using a specifically designed tool and buries the subsea cables and pipelines. According to the soil conditions, this trenching method can have two different types, one is mechanical cutting and ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Davide Forcellini, Daniele Mina and Hassan Karampour
Subsea high pressure/high temperature (HP/HT) pipelines may be significantly affected by the effects of soil structure interaction (SSI) when subjected to earthquakes. Numerical simulations are herein applied to assess the role of soil deformability on t...
ver más
|
|
|
|
|
|
|
|
|
|
|
Woo-Dong Lee, Hyo-Jae Jo, Han-Sol Kim, Min-Jun Kang, Kwang-Hyo Jung and Dong-Soo Hur
Herein, hydraulic model experiments and numerical simulations were performed to understand the self-burial mechanism of subsea pipelines with spoilers under steady flow conditions. First, scour characteristics and self-burial functions according to the s...
ver más
|
|
|
|
|
|
|
|
|
|
|
Shiming Hong, Guangjie Peng, Dehui Yu, Hao Chang and Xikun Wang
Tee pipes are widely utilized in pipeline transportation, especially in subsea production systems and the chemical industry. The purpose of this research is to study the influences of gravity direction, conveying parameters and particle properties on the...
ver más
|
|
|
|
|
|
|
|
|
|
|
Kang Zhang, Ruize Ma, Tao Geng, Jiannan Yang and Yongjun Gong
The leakage of subsea oil and gas pipelines can have adverse impacts on production progress and the ecological environment. Investigating the sound source and near-field sound propagation of pipeline leaks is essential for understanding the acoustic char...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jia-Bin Wu, Li Li, Xing-Long Zou, Pin-Jian Wang and Wei Wei
The valve-controlled hydraulic cylinder system (VCHCS) is commonly used for actuators such as manipulators in deep-sea equipment, whose working performance is crucial to subsea tasks. Affected by the ambient pressure introduced by the pressure compensato...
ver más
|
|
|
|
|
|
|
|
|
|
|
Jia-Bin Wu, Li Li, Yong-Kang Yan, Pin-Jian Wang and Wei Wei
The valve-controlled hydraulic cylinder system (VCHCS) is commonly utilized in the underwater manipulator, which is the most important tool for subsea tasks. Hydraulic oil viscosity is very sensitive to pressure. Therefore, when working at different dept...
ver más
|
|
|
|
|
|