Results 71 to 80 of about 1,280 (210)

Using Magnetic Measurement Technology in Marine Riser Stress Detection

open access: yes, 2010
The marine riser bears various power loads during operation. We designed the Quadrupole-type magnetic measurement probe based on the inverse magnetostrictive effect (the impact of stress on the magnetization) and performed finite element simulation and ...
Liyan Wang   +4 more
core   +1 more source

Marine Riser Vibration Response Determined by Modal Analysis

open access: yes, 1979
Marine riser response calculations are usually based on finite element or finite difference methods. This paper outlines the modal analysis method as an alternate approach for calculating marine riser time-dependent stresses.
D. W. Dareing, T. Huang
core   +1 more source

Mechanical Analysis of Coupling of Deep Water Drilling Riser and Stratigraphic Pipe String

open access: yesShiyou jixie, 2018
During deep-water drilling operation, the safety of riser is crucial to the whole drilling process. In order to study the mechanics behavior of drilling system under complicated marine environment and seafloor geological conditions, considering the ...
Hua Yong   +6 more
doaj  

Dynamic risk assessment approach of riser recoil control failure during production test of marine natural gas hydrate

open access: yesEnergy Science & Engineering, 2019
The marine natural gas hydrate is considered to have huge resource potential in the South China Sea, and a sixty‐day production test has been successfully conducted in 2017.
Yuanjiang Chang   +7 more
doaj   +1 more source

New model for vortex-induced vibration of catenary riser

open access: yes, 2008
This paper presents a new theoretical model capable of predicting the vortex-induced vibration response of a steel catenary riser subject to a steady uniform current.
O'Brien, P.   +2 more
core  

Analysis of vibration characteristics of deep-sea mining risers under emergency disconnection state

open access: yesApplied Ocean Research
The extreme marine environment poses a significant threat to deep-sea mining operations. For the sake of security, the jack-up diving platform and riser system are still deployed in the sea, and the emergency evacuation of personnel and mining vessels is
Jiaqi Han, Zhen Wang
doaj   +1 more source

Three-dimensional marine riser dynamics

open access: yes, 2001
The equations of the three dimensional motion of a marine riser undergoing large elastic deformations are formulated using Kane's formalism. The riser is modelled using lumped masses connected by extensional and rotational springs including structural ...
Baddour, R. E., Raman-Nair, W.
core  

Numerical analysis of marine riser vortex-induced vibration with helical strake suppression device / Diniesh Naidu Thannimalai [PDF]

open access: yes, 2019
Since offshore drilling rig is exploring oil and gas into depth water and marine riser facing the problem of vortex induced vibration (VIV) due to sea current. This VIV cause the marine riser to vibrate leads to failure.
Diniesh Naidu, Thannimalai
core  

Design, Fabrication, and Installation of a Prototype Multiline Marine Production Riser System

open access: yes, 1977
A multiline marine production riser and floating production, storage, and terminal facility may be required for economic development of oil and gas reserves in remote, deep water locations.
J. E. Ortloff   +3 more
core   +1 more source

Drilling Riser Model Test for Software Verification [PDF]

open access: yes, 2017
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
Decao Yin   +7 more
core   +1 more source

Home - About - Disclaimer - Privacy