S.: Installation Engineering and Execution of Offshore Projects, Lecture Notes, The LRET Research Collegium, Southampton (2011)Įdelson, D. et al: Floatover Deck Installation for Spars, OTC 12971, Houston, Texas (2001)Ĭhoo, Y. L., VERSATRUSS: An Innovative Alternative in Single-Piece Deck Installations and Salvage, OTC-8445-MS, Houston (1997)Īrticle: Twin Marine lifter-a novel Offshore heavy lift system. Khachaturian, J.E.: US Patent #4714382, Method and Apparatus for the Offshore Installation of Multi-Ton Prefabricated Deck Packages on Partially Submerged Offshore Jacket Foundations (1987) ![]() Master’s Thesis, University of Stavanger (2015) ījørheim, P.: A Feasibility Study of the Versatruss System. Luo, M., et al.: US Patent#US2010/0221070 A1, Topsides Load-out to Barge Catamaran for Float-over Installation (2010)Ĭash, W.: Dual Barge-truss System Aims at 20,000-ton Lift. Sun, L., et al: Multi-body Dynamic Analysis of Float-over Installation. et al: Preliminary Concept on Dual-Barge Float-over Installation Method for Large Blocks, ISOPE paper, ISBN 978-1-88, Beijing, China (2010) George, D.: Tow-out beginning of era for Newfoundland Banks. Zhang, Q.: “The Hibernia Development Project”, PT-2013 -Zhang, Coastal and Ocean Engineering ENGI.8751 Undergraduate Student Forum, Faculty of Engineering and Applied Science, Memorial University, St. et al: Mating of Large Integrated Decks to Concrete Gravity Structures, OTC 7502, Houston, Texas (1994)ĭe Bruijn, V.: Hibernia Development Project, Terra et Aqua, Number 73 (1998) ![]() Lecture Notes: Lecture 15A.11-Superstructures II, ESDEP WG 15Aījørdal, B.N. This is planned to include major modifications of the existing platform to enable it to receive power from shore via an electrical power cable and replace the current power generation from gas turbines at the platform. Nordås, J.K.: Gullfaks-The First Norwegian Oil Field Developed and Operated By Norwegian companies. In a separate statement, Aker Solutions confirmed the LOI with OKEA for the Draugen electrification project. Two other catamaran floatover methods using special equipment: the Versatruss and TML methods are also presented in this chapter. For these operations, floatover vessels do not need specially designed equipment besides grillages and sea-fastenings. This extra step operation need to be well prepared through intensive engineering efforts.ĭiscussion in this chapter covers the operation details with the examples of CGBS inshore integration and the spar offshore integration. In general, the catamaran is formed at the location near the mating site, therefore the topsides will be transported from the yard to the selected location by a third vessel and then the topsides is transferred to the floatover vessels. Catamaran floatover methodology has been successfully applied in both inshore and offshore platform integration. ![]() The mating operation procedure are the same as the HIDECK, except the involvement with two vessels. Two floatover vessels and the topsides form a catamaran. Transocean Barents was issued with an Acknowledgement of Compliance (AoC) by the PSA in October 2012.When the platform substructures do not have openings wide enough for installation vessels to move in, catamaran floatover method is the choice of platform integration. ![]() The rig is registered in the Marshall Islands and classified by DNV GL. It was built at Aker Kværner Stord in 2009 and is owned and operated by Transocean. Transocean Barents is a semi-submersible drilling rig of the Aker H-6e type. PSA says that the well will be connected to a subsea pipeline system leading to the Draugen platform, and until this system is ready, the well will be shut off and monitored.ĭrilling is scheduled to begin on and last for 45 days. A/S Norske Shell has received consent from the Petroleum Safety Authority (PSA) Norway to use the Transocean Barents drilling rig to drill a production well on the Draugen field in the Norwegian Sea.Īccording to PSA, Shell has applied for consent to drill a new production well designated 6407/9-G-5 H, which is a free-standing subsea well, at water depth of 289 meters.
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