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Proceedings Papers

Paper presented at the The Thirteenth ISOPE Pacific/Asia Offshore Mechanics Symposium, October 14–17, 2018
Paper Number: ISOPE-P-18-008
... subsea system fpso reservoir simulation semi-submersible platform force coefficient column corner radius increase amplitude column rounded ratio numerical simulation vortex-induced motion corner radius circular column floating production system engineering different column corner...
Proceedings Papers

Paper presented at the OTC Brasil, October 24–26, 2017
Paper Number: OTC-28033-MS
... generation of the purpose built intervention semi-submersible (Q7000) is in the final stage of the construction and will be available to the market in 2018, bringing new technology enhancements and lessons learned from more than 15 years of continuous operations of the 1st and 2nd generation...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27595-MS
... Abstract The Independence Hub semi-submersible and Thunder Hawk semi-submersible, both located in the Gulf of Mexico, have been operational since 2007 and 2009 respectively. The underwater hull geometry is basically the same for both vessels. Both Independence Hub and Thunder Hawk are moored...
Proceedings Papers

Paper presented at the SNAME 22nd Offshore Symposium, February 2, 2017
Paper Number: SNAME-TOS-2017-019
... Two production semi-submersibles that were based on Exmar Offshore Company's proprietary OPTI& Hull had been successfully constructed and installed in the Gulf of Mexico in the past five years. The OPTI& hull features pontoon lip extending outboard of five-sided columns. The pontoon lip...
Proceedings Papers

Paper presented at the The Twenty-first International Offshore and Polar Engineering Conference, June 19–24, 2011
Paper Number: ISOPE-I-11-290
... ABSTRACT: In this study, numerical and experimental assessment of the 2nd order responses of a twin hulled semi-submersible subjected to monochromatic, bi-chromatic and random seas has been attempted. For numerical analysis, the 2nd order wave forces resulting from the 2nd order temporal...
Proceedings Papers

Paper presented at the SPE International Conference on Health, Safety and Environment in Oil and Gas Exploration and Production, April 12–14, 2010
Paper Number: SPE-126436-MS
... Abstract Periodically on semi-submersibles, it is required to perform planned and occasionally unplanned disconnects of the marine riser from the subsea BOP stack. The reasons are diverse but always result in a change out of fluids in the riser. Typical circumstances for riser disconnects...
Proceedings Papers

Paper presented at the The Twelfth International Offshore and Polar Engineering Conference, May 26–31, 2002
Paper Number: ISOPE-I-02-320
... ABSTRACT The paper demonstrates how the findings of a series of model tests and diffraction calculations, performed to determine the motion behavior of a new semi-submersible design were used to influence the final design. From the model tests at different drafts, wave headings and current...
Proceedings Papers

Paper presented at the IADC/SPE Drilling Conference, February 26–28, 2002
Paper Number: SPE-74452-MS
..., Richardson, TX 75083-3836, U.S.A., fax 01-972-952-9435. Abstract When the submersible Mr. Charlie, the world s first purpose built MODU, went to its first location in 1954, it initially slid off location. Since that time anti scouring skirts, small piles, shell pads and other efforts have helped keep...
Proceedings Papers

Paper presented at the Man-Made Objects on the Seafloor 2000, May 2–3, 2000
Paper Number: SUT-MMOS-00-149
... ABSTRACT During the last ten years the MIR-1 and MIR-2 submersibles have been used not only for scientific research of the ocean, but also for the location and exploration of wrecks on the ocean floor In 1989 the Russian nuclear submarine Komsomolets sank in the Norwegian Sea in 1,700 m...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 3–6, 1999
Paper Number: OTC-10955-MS
.... Dynamic effects in the stationkeeping performance of the semi submersible may play an important role. The environmental loads contain both mean and low frequency varying components. Results from calculations and regular wave tests show that the use of diffraction analysis to calculate the wave drift...
Proceedings Papers

Paper presented at the The Seventh International Offshore and Polar Engineering Conference, May 25–30, 1997
Paper Number: ISOPE-I-97-324
... of the Seventh (1997) International Offshore and Polar Engineering Conference Honolulu, USA, May 25-30, 1997 Copyright © 1997 by The International Society of Offshore and Polar Engineers ISBN 1.880653-28-1 (SeO; ISBN 1-880653-31-1 (VoL III) Wave Enhancement Due to Structure Block in Semi-Submersibles T. Bruce...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 1996
Paper Number: OTC-8049-MS
... special area pontoon petrobras @l . OTC 8049 Structural Integrity Guarantee of Semi-Submersibles Converted to Production C.C.D. Henriques, PETROBRAS S.A. copyr!ght 1996, OFFSHORE TECNOLOGY CONFERENCE This paper was presented at the 28th Annual OTC m HWston, Texas, U S A 6.9 May 199S This paper...
Proceedings Papers

Paper presented at the The Fifth International Offshore and Polar Engineering Conference, June 11–16, 1995
Paper Number: ISOPE-I-95-252
... ISBN 1-880653-16-8 (Set); ISBN 1-880653-19-2 (Vol 111) Viscous Mean Drift Forces on Moored Semi-Submersibles A.K. Dev and l.A. Pinkster Ship Hydromechanics Laboratory, Delft University of Technology Delft, The Netherlands Abstract Theoretical predictions using 3-D potential theory for the mean drift...
Journal Articles
J Ship Res 38 (04): 259–271.
Paper Number: SNAME-JSR-1994-38-4-259
Published: 01 December 1994
...Fotis A. Papoulias; Ibrahim Aydin The problem of motion stability of submersible vehicles in free positive buoyancy ascent is analyzed. Motion is allowed to occur in combined vertical and horizontal planes. Continuation and catastrophe theory techniques are employed to trace all possible steady...
Proceedings Papers

Paper presented at the SPE Production Operations Symposium, March 21–23, 1993
Paper Number: SPE-25446-MS
... separator well condition frequency drive artificial lift system information selection society of petroleum engineers operator voltage upstream oil & gas gas separator cable durham installation spe 25446 operation submersible operating engineer manufacturer horsepower...
Journal Articles
Mar Technol SNAME N 28 (06): 324–338.
Paper Number: SNAME-MTSN-1991-28-6-324
Published: 01 November 1991
...Steve Johnson; Brian Salerno Passenger-carrying submersibles have been certified by the Coast Guard for operations in the United States Virgin Islands, Hawaii, and Guam. Although subject to the Coast Guard small passenger vessel regulations, 46 CFR Subchapter T, submersibles are not specifically...
Proceedings Papers

Paper presented at the The First ISOPE Pacific/Asia Offshore Mechanics Symposium, June 24–28, 1990
Paper Number: ISOPE-P-90-081
... ABSTRACT: Drag forces acting on mooring lines and viscous damping forces of a floating structure are essential to estimate a magnitude of a slow drift oscillation of semi-submersibles. In this paper a time domain calculation method of dynamic tensions of mooring chains and experimental results...
Journal Articles
SPE Prod & Oper 4 (02): 121–124.
Paper Number: SPE-16196-PA
Published: 01 May 1989
...K.B. Nolen; S.G. Gibbs Summary This paper presents a field-proven analytical method of evaluating electric-submersible-pumping equipment and well performance jointly. A computerized mathematical model that considers the effects of free gas, pump speed (variable-frequency drives), and pump tapering...
Proceedings Papers

Paper presented at the Technology Common to Aero and Marine Engineering: Proceedings of an international conference, January 26–28, 1988
Paper Number: SUT-AUTOE-v15-157
...A discrete vortex model of separa ted flows over man oe u vring submersibles S J Tznkeer, Admiralty Research Establishment, Haslar, UK Separated flows exist on submersibles at large angles of incidence such as occur, for example, dunng turns at high speed and emergency recovery amons They signfi...
Proceedings Papers

Paper presented at the Stationing and Stability of Semi-submersibles: Proceedings of an International Conference, June 16–18, 1986
Paper Number: SUT-AUTOE-v9-041
...A New Theory and its Application for Stability Criteria Covering Wave-induced Tilt Phenomena on Semi-Su bmersibles R C. T. Razney, Atkins Research and Development, Epsom, UK ABSTRACT Any calculation of seml-submersible stability against capslze m waves lmplies some theoretical perspective...

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