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Keywords: oscillation
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Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31020-MS
... Abstract Understanding the physics of generation, propagation, and dissipation of inertial currents is important from a variety of aspects. For the Gulf of Mexico, one such aspect is that these oscillations represent an uncertainty in the measurements and forecasting of the longer-period...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28829-MS
...) between eddy activity and intensity of inertial oscillations within the water column. We present data collected from ADCPs at several locations in the northern Gulf of Mexico along with an extensive network of drifting buoys in correlation with daily frontal analyses and a comparison with historical...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27794-MS
... mode derivative turret centre thruster subsea system floating production system aft thruster oscillation blue line vessel centre turret upstream oil & gas stiffness equilibrium fpso controller artificial intelligence stability eigenmode sway force forward thruster...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27822-MS
... system roll angle riser balcony riser system offshore technology conference inertia matrix spread moored fpso coupling roll motion fpso roll motion riser oscillation fpso upstream oil & gas roll stiffness stiffness displacement inertia flexible riser Bigot F. , Seah...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27528-MS
... stack) influences the resonant amplitudes and frequencies of a drilling riser system during connected (low amplitude oscillations) and disconnected (high amplitude oscillation) conditions. The prediction of hydrodynamic loads on a BOP stack at resonant frequencies is of importance for analyzing wellhead...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-27229-MS
... hyperactivity oscillation anomaly buoy mexico eddy intensity loop current interaction separation wind speed gulf operation current intensity offshore technology conference caribbean time period Presentation of OTC-27229-MS Presentation of OTC-27229-MS Grossman , I...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25694-MS
... range water column vangriesheim continental slope upstream oil & gas alongshore current offshore technology conference fluctuation oscillation offshore angola sanha ctw frequency range reservoir characterization hycom khz adcp time series angola biweekly oscillation...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2014
Paper Number: OTC-25421-MS
.... Some of the identified events were caused by strong inertial oscillations with multiple speed peaks confined to a relatively narrow layer centered around 500m. Mid-water jets have been identified in previous work [2] but this new analysis provides far more cases and suggests that the jets have an upper...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-24035-MS
... renewable energy social responsibility takeoff turbine water current flow-induced oscillation sustainable development oscillation amplitude sustainability instability proceedings efficiency transmission system torsional power takeoff flat plate international conference...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2011
Paper Number: OTC-21670-MS
... Abstract This paper discusses computational fluid dynamic (CFD) analysis that has been applied to a blowout preventor (BOP) stack undergoing vertical oscillation during deployment from a floating drilling rig. CFD analysis has been used to determine added mass and to show that the drag...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2010
Paper Number: OTC-20753-MS
... technology conference furrow reservoir characterization current measurement furrow field upstream oil & gas oscillation adcp cascade variability measurement program OTC 20753 Bottom Current Measurements at GoM Furrows for the Cascade and Chinook Fields Development Jose Antonio M.Lima, Eric...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2010
Paper Number: OTC-20792-MS
... to reproduce in print is restricted to an abstract of not more than 300 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgment of OTC copyright. Abstract Inertial currents (also known as inertial oscillations or inertial waves) are a well known ocean phenomenon commonly...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19289-MS
... that both Intact and Deformed strakes were at least 90% efficient in suppressing VIV. Therefore, based on the tests reported in this paper, the Polyethylene strakes were deemed acceptable to use on the SCR's even when using the S-Lay installation method. strake case oscillation configuration...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2008
Paper Number: OTC-19128-MS
...-soil interaction. Improved methods are necessary to raise the reliabilityof these designs in marginal cases, enhancing the viability of offshorehydrocarbon developments in deep water. embedment lay process lay effect assessment penetrometer penetration oscillation touchdown point...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 2004
Paper Number: OTC-16342-MS
... and in reducing drag. In both tests, however, large lateral cylinder oscillations developed once the flow exceeded a certain critical speed. Motion amplitudes in one test significantly exceeded those of a bare pipe undergoing VIV. A simple two-dimensional model of aircraft wing flutter was used to better...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–8, 2003
Paper Number: OTC-15232-MS
... control equipment arrangement reliability subsea system simulation spool force resistance regulator offshore technology conference bop operator hose drilling equipment hyperbaric chamber operation otc 15232 oscillation shuttle valve annular pressure drilling spool position operator...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2002
Paper Number: OTC-14051-MS
... illustrate the dynamic response of the system due to ship oscillations in random seas and the associated downtime of MODUS operations. The paper presents the latest technological and scientific applications of MODUS during its first cruises: Reaching depths of 3700 m within the EC funded projects GEOSTAR...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2000
Paper Number: OTC-11953-MS
... conditions, however, thecoupled system of floating structure and swinging load shows different linearand nonlinear phenomena: in-phase and anti-phase load oscillations mutually coupled tointerdependent transverse and angular resonance motions of the cranevessel subharmonic motions of the vessel due...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2000
Paper Number: OTC-11994-MS
... of the top of the riser induces non-repeatingout-of-plane displacements. In general, response is reasonably narrow-bandedwithin one half-cycle of top excitation, but there can be large differences inthe frequency of the oscillation from one half-cycle to the next. Analysis ofthe data did not reveal any...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 1999
Paper Number: OTC-10931-MS
... upstream oil & gas drilling riser oscillation excitation calculation Copyright 1999, Offshore Technology Conference This paper was prepared for presentation at the 1999 Offshore Technology Conference held in Houston, Texas, 3 6 May 1999. This paper was selected for presentation by the OTC...

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