... Abstract Over decades, free-hanging steel catenary riser (SCR) has been regarded as a cost-effective and straightforward system for riser solutions in deepwater and ultra-deepwater by National oil companies NOCs, international oil companies IOCs, and independent players. However, the free...

... of Shetland, offshore Eastern Canada, along Ireland’s Atlantic margin, in the South Atlantic Ocean and offshore South Africa. All these locations are characterized by the challenges of deepwater, powerful ocean currents and high seas. With the lower oil price environment, carrying out drilling operations...

...VIBRATION DECAY ALONG DEEPWATER MOORINGS WITH COMPLEX GEOMETRY AND CONFIGURATION, AS A TOOL FOR TRUNCATION Alex Argyros Department of Engineering University of Cambridge Trumpington Street, Cambridge CB2 1PZ, UK Email: aa542@cam.ac.uk Robin S. Langley Department of Engineering University...

... to investigate whether the deepwater welding procedure may also be used in shallow waters, and which modifications for the lower pressure conditions need to be made. Test welding has been performed in the pressure range from 36 to 1bar corresponding to 350 to 0m sea water depth to study the effect of ambient...

... 24 07 2009 Thermal expansion management of high pressure and high temperature (HPHT) pipelines using buckle initiators and anchors has proven to be a viable approach for projects in the deepwater Gulf of Mexico. In this study, using suction piles as pipeline anchors is discussed...

... 22 05 2009 Several initiatives have been undertaken by the operators, engineering companies, product manufacturers, and regulatory bodies to enable increased use of steel catenary riser (SCR) design in development of deepwater and ultra-deepwater fields. Some of these efforts focus...

.... The paper describes the general architecture of a minimum Hybrid Riser Tower riser production system to be used for a drill centre, and the results of wake interference analysis for single bore HRTs and for a drill centre HRT’s in deepwater West Africa and GOM for turret-moored FPSO’s. deepwater...

... 04 03 2009 The mechanisms of phase re-distribution and of gas/condensate flow in a deepwater lazy-wave riser after system shutdown are studied numerically and theoretically. This is the second of three papers in series. The investigated system consists of a 15-mile long subsea pipeline...

... 04 03 2009 New types of current profile criteria are described that are designed to take into account the vertical coherence of deepwater currents in offshore engineering. Reasoning is given why traditional types of current profile criteria can be inappropriate for deepwater locations...

... insulation systems include lack of experience on the performance of these systems in long-term deepwater service and relatively low temperature limits when exposed to hot/wet conditions. At present, tests for assessing their thermal and physical properties are manufacturer-dependent and, for a purchaser...

... 09 01 2009 This paper describes the methodology used by BP on two deepwater projects to assess the reliability level of submarine slopes in the deepwater Gulf of Mexico environment. The paper describes the necessary steps in the analyses: establishing a geological model, properly...

... conclusion from the study is that most trends from parameter variations are weak and often overshadowed by a more stochastic variation caused by the inherent complexity of the mechanical behaviour during collapse. Riser Collapse Deepwater Footprint of the speed study h operati to the materi...

... 19 11 2008 This paper will present the key drivers for design of riser towers in these environ impact on the bundle cros tank size, flexible jumper and explained both in installation. As FPSO units are likely Gulf of Mexico deepwate benefit of riser towers wi facilities for fabrication...

... Deepwater Coupled analysis appr this repre vibra impo frequ nonl linea iden the w to th effec throu com work and effic Keyw Proceedings of OMAE2005 24th International Conferenc1 Copyright © 2005 by ASME opriate simplifications and assumptions can be made. In paper, a simplified two degree-of-freedom...

... southward direction. loop current eddy deepwater salinity temperature Proceedings of OMAE2006 25th International Conference on Offshore Mechanics and Arctic Engineering June 4-9, 2006, Hamburg, Germany Copyright© 2006 by ASME 1 depth. The aim of this project is to supply the necessary water...

... 07 10 2008 This paper presents an illustrative example of the reliability assessment of suction piles foundation in clayey soils for deepwater applications. The results of two reliability approaches, using suction piles as the foundation system for tension leg platforms (TLPs) under...