Results 21 to 30 of about 1,207,140 (178)
Research Progress on Recoil Analysis and Control Technology of Deepwater Drilling Risers
Energies, 2022 The deepwater drilling riser is a very important and vulnerable connection between an offshore platform and subsea wellhead. Under some certain complex marine environment and operating conditions, the offshore platform may drift beyond the safe ...
Yanbin Wang +3 more
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Vibration control of a viscoelastic flexible marine riser with vessel dynamics
Mathematical Modelling and Analysis, 2018 In this work, we investigate the asymptotic behavior of solutions of a viscoelastic flexible marine riser with vessel dynamics. Under a suitable control applied at the top end of the riser, we establish explicit decay rates for a large class of ...
Lamia Seghour +3 more
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Shock and Vibration, 2020 Marine riser is a key equipment in offshore drilling operation, and failure of the riser can lead to drilling moratorium; in severe cases, it may cause oil and gas leaks.
Fengde Wang +4 more
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Parametric Analysis of an Energy-Harvesting Device for a Riser Based on Vortex-Induced Vibrations
Energies, 2020 An energy-harvesting device for a riser based on vortex-induced vibration is proposed to overcome the power supply problem for a marine deep-water riser-monitoring device.
Xu Bai, Chuanyu Han, Yong Cheng
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International Journal of Naval Architecture and Ocean Engineering, 2019 The effects of Triangle Groove Strips (TGS) on Vortex-induced Vibration (VIV) suppression of marine riser are numerically investigated using Computational Fluid Dynamics (CFD) method. The range of Reynolds number in simulations is 4.0 × 104 < Re
Wei Wang +4 more
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You-qi chuyun, 2021 In the field of offshore oil and gas development, the pipeline transmission pressure and flow velocity increase, and the vibration caused by the internal flow of a pipeline becomes one of the important items for flow safety guarantee.
Zhaoyang HE +4 more
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Fatigue damage assessment of offshore riser subjected to vortex-induced vibrations by SHEAR7
International Journal of Naval Architecture and Ocean Engineering, 2022 Marine risers are a critical component in transporting the produced hydrocarbons from the seabed to the topside facility and vice versa. These risers are subjected to VIV when encountered with ocean currents, leading to the accumulation of fatigue damage,
Malakonda Reddy Lekkala +4 more
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Lateral Dynamic Characteristics of Riser Under Wave-Current Load During Running and Installation
Shiyou jixie, 2023 In order to study the lateral dynamic displacement and lower bending moment variation of the marine riser during running and installation, the lateral dynamic load equation and wave-current load equation were established.Based on the analysis of grid ...
Sun Qiaolei +5 more
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Impact Analysis of Modal Parameters of Marine Riser Based on Differential Transformation Method
Shiyou jixie, 2018 To study the change rule of modal parameters (natural frequency and vibration mode) of marine risers influenced by structural parameters (riser length and bending stiffness), axial tension (constant tension and variable tension), elastic restraint ...
Chen Wenli +3 more
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Prediction of the vortex-induced vibrations for hang-off drilling risers via integral transform
KSCE Journal of Civil EngineeringWhen the marine environmental conditions exceed the safe operating limits of the marine riser, the riser must be separated from the blowout preventer (BOP) and enter a suspended state until the conditions improve.
Tongtong Li +6 more
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