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Hu Liu, Meng Li and Yijun Shen
As oil and natural gas production continue to go deeper into the ocean, the flexible riser, as a connection to the surface of the marine oil and gas channel, will confront greater problems in its practical application. Composite materials are being consi...
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Xingwei Zhen, Frank Lim, Qiuyang Duan, Yiwei Geng and Yi Huang
The prevailing offshore field development solutions, i.e., dry tree and wet tree systems, are confronted with serious technical and economic challenges in deep and ultra-deep waters resulting from the large depth of water, far offshore distance, and hars...
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Zhongyan Liu, Jiangtao Mei, Deguo Wang, Yanbao Guo and Lei Wu
As a new type of riser connecting offshore platforms and submarine pipelines, steel catenary risers (SCRs) are generally subject to waves and currents for a long time, thus it is significant to fully evaluate the SCR structure?s safety. Aiming at the dam...
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Jianxing Yu, Fucheng Wang, Yang Yu, Xin Liu, Pengfei Liu and Yefan Su
This paper presents a full-scale deep-water steel catenary riser fatigue test system. The proposed system can carry out fatigue tests on steel catenary risers, hoses, and subsea pipelines up to 21 m in length, ranging from 8 to 24 inches in diameter. The...
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Weiwei Zhou, Menglan Duan, Rongqi Chen, Shisheng Wang and Huiming Li
A model test was carried out to reveal the vortex-induced vibration characteristics of a deep-sea riser under bidirectional shear flow. Bandpass filtering and modal analysis were used to process the test strain data, and the amplitude and frequency respo...
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Jinjiang Yao, Xingwei Zhen, Yi Huang and Wenhua Wang
The Next Generation Subsea Production System (NextGen SPS) is considered as a competitive alternative system used for offshore petroleum production in ultra-deep sea based on the artificial seabed technology. The Immersed Buoyant Platform (IBP), which is...
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Jie Zhang, He Guo, Yougang Tang and Yulong Li
With the increase of water depth, the design and use of the top-tensioned risers (TTR) are facing more and more challenges. This research presents the effect of top tension on dynamic behavior of deep-sea risers by means of numerical simulations and expe...
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Jie Wu, Decao Yin, Halvor Lie, Signe Riemer-Sørensen, Svein Sævik and Michael Triantafyllou
Slender marine structures such as deep-water riser systems are continuously exposed to currents, leading to vortex-induced vibrations (VIV) of the structure. This may result in amplified drag loads and fast accumulation of fatigue damage. Consequently, a...
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