Results 11 to 20 of about 1,357 (297)

Drilling Riser Model Test for Software Verification [PDF]

Journal of Offshore Mechanics and Arctic Engineering, 2016
Marine drilling riser is subject to complicated environmental loads which include top motions due to mobile offshore drilling unit (MODU), wave loads, and current loads. Cyclic dynamic loads will cause severe fatigue accumulation along the drilling riser system, especially at the subsea wellhead (WH).
Yin, Decao, Lie, Halvor, Russo, Massimiliano, Grytøyr, Guttorm   +3 more
openaire   +3 more sources

Dynamic Analysis of a Drillstring-Riser System Drilling in Deep Water [PDF]

MATEC Web of Conferences, 2018
A mathematical model of a drillstring-riser system is developed to analyze the system dynamics when drilling in deep water. For the proposed model, a riser and a drillstring are combined as a pipe-in-pipe structure, along which the interactions between ...
Liao Maolin, Zhou Yingcao, Su Yinao, Lian Zhilong, Jiang Hongwei   +4 more
doaj   +3 more sources

Mathematical Modelling and Dynamic Analysis of an Offshore Drilling Riser

Shock and Vibration, 2020
In this paper, a dynamic model of an offshore drilling riser is developed based on the Hamilton principle. The developed dynamic model is transformed into a finite element model by introducing an approximate solution which chooses the Hermite cubic ...
Maolin Liao, Gaowei Wang, Zhiying Gao, Yipeng Zhao, Ruifeng Li   +4 more
doaj   +2 more sources

Vortex-induced vibration mechanism of drilling riser under shear flow

Petroleum Exploration and Development, 2015
Vortex-induced vibration of the drilling riser under shear flow was studied by experimental method, and the characteristic parameters of vortex-induced vibration under the shear flow were obtained.
Liangjie MAO, Qingyou LIU, Shouwei ZHOU, Wei JIANG, Zhengli LIU, Tao PENG   +5 more
doaj   +2 more sources

Preliminary instability-analysis of deepwater riser with fairings [PDF]

, 2009
Instability of deepwater riser with fairings is investigated in this study. Despite the advantages over other devices for suppressing vortex-induced-vibration (VIV), fairings may be susceptible to flutter type instability.
Huang, Shan, Khorasanchi, Mahdi, Shan Huang, Mahdi Khorasanchi   +3 more
core   +1 more source

Numerical and experimental comparisons of vortex-induced vibrations of marine risers in uniform/sheared currents [PDF]

, 2010
This paper presents a general theoretical reduced-order model capable of evaluating the multi-mode nonlinear dynamics of marine risers subject to uniform and sheared currents.
Wiercigrocha, Marian, Patrick O’Brien, O'Brien, Patrick, Narakorn Srinil, O'Brien, P., Srinil, Narakorn, Wiercigrocha, M., Marian Wiercigroch, Srinil, N.   +8 more
core   +1 more source

Analysis and control of drilling riser dynamics in dual gradient drilling [PDF]

, 2013
The aim of this thesis is to investigate a dual gradient riser system, adapted for operations in the Gulf of Mexico and subjected to first- and second-order wave forces, current and rig/vessel motion.Deep water drilling in narrow pressure zones pose several challenges for handling well pressure.
Fossum, Trygve Olav
core   +3 more sources

Proceedings of the Integrated Ocean Drilling Program Volume 338, NanTroSEIZE Stage 3: NanTroSEIZE Plate Boundary Deep Riser 2 [PDF]

, 2019
The Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) is a multidisciplinary scientific project designed to investigate fault mechanics and seismogenesis along subduction megathrusts through reflection and refraction seismic imaging, direct ...
Esteban, L., Dugan, B., Jurado, Maria José, Kanagawa, K., Maeda, L., Kido, Y., Takeshita, T., Sanada, Y., Webb, S., Skarbek, R., Kanamatsu, T., Milliken, K., Pickering, K.T., Heirman, K., Masuda, H., Oohashi, K., Mishra, R., Yamaguchi, A., Hayashi, H., Ramirez, S.G., Moore, G.F., Hüpers, A., Song, I., Strasser, Matthias, Sawyer, D., Tudge, J., Toki, T., Wu, H.-Y., Hammerschmidt, Sven, Motoyama, I., Kameo, K., Wilson, D.J., Fabbri, O., Shan, Y., Olcott, K., Toczko, S., Moe, K.T., Geersen, J., Kitajima, H., Schleicher, A., Rashid, H.   +40 more
core   +1 more source

Simulation Study of Reentry Dynamics of a Deep-Water Drilling Riser System Based on Model Predictive Control

Shanghai Jiaotong Daxue xuebao, 2023
A marine drilling riser at normal operation condition is required to disconnect the lower marine riser package (LMRP) and blow-out preventer (BOP) in case of severe weather. When the weather gets fine, it must reconnect the LMRP and the BOP. This process
ZHANG Chenyu, MENG Shuai
doaj   +1 more source

An impedance approach to reduce the contact-instability whilst drilling with active heave compensation [PDF]

, 2012
The bit-bounce, or contact-instability, phenomenon which occurs in the drill string suspended from a floating vessel with an active drill string compensator to maintain a steady weight on the drill bit is investigated.
Hatleskog, Jan, Dunnigan, Mathew Walter
core   +1 more source