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Keywords: installation
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Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1289
... ABSTRACT The recent increase in size and weight of offshore plant requires the development of float-over method and the development of design technology of additional structure for safe installation. The float-over method allows the installation of over tens of thousands of tonnes of the...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1191
... ABSTRACT Continuously strong increase of offshore wind farm development over last decade stimulates the new technology demands on more efficient and safer methodology for wind turbine installation in complex offshore environment. This study aims at developing a SWATH type wind turbine...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1290
... ABSTRACT This study collected work data during installation of offshore structure using two crane barges considering the complex ocean environment. During the installation of the pipe as two scenarios, the ocean environment, the motion of the crane and the installation structure were measured...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1192
... ABSTRACT With the size of the wind turbine and water depth being continually increasing, offshore wind turbine (OWT) installation has become a major challenge for the development of offshore wind energy. The traditional OWT installation methods either use a crane vessel to achieve a single lift...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1295
... ABSTRACT During twin-barge float-over installation of topsides, there are two mating phases with load transferring. In this study, the load transfer process of the first mating phase is carried out continuously by approximately simulating ballast tanks with time-dependent point masses in the...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1193
... ABSTRACT This work presents a multi-leveled model based on Colored Generalized Stochastic Petri nets (CGSPN) approach for offshore wind energy installation. The offshore logistics, which describes the organization of offshore operations, is embedded at the root level. The offshore operations...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-2150
... ABSTRACT Consolidation settlements of a dual suction anchor (DSA) functioning as foundation structure (FST) of a pipeline end manifold (PLEM) on a soft clayey seabed during different installation and operational stages is evaluated. 3D finite element model of the DSA, including time intervals...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-2168
... ABSTRACT The J-lay and S-lay are two common methods for SCR (steel catenary riser) and pipeline installation. When using the S-lay installation method, onboard welded pipe joints leave the vessel horizontally and are guided to the seabed over a stinger. The pipe is lowered using tensioners...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1321
.... subsea system platform water depth enhanced recovery fabrication cpt foundation pile waterflooding angola pipeline otc upstream oil & gas template module jacket platform gulf offshore technology conference compliant tower platform baldpate compliant tower installation compliant...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-2169
... touch down zone. However, the challenge in installation and add on cost of buoyancy modules with their uncertain hydrodynamic response have motivated the use of a deep-draft semisubmersible to support conventional SCRs for Lingshui 17-2 field. This paper investigates the design of conventional SCRs to...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-3159
... resistance of amphibious vehicle reduced with the installation of bow flap with different shapes and sizes. Cusanelli (1997) explained that the primary reason that a stern appendage works was the change of pressure distribution at the after body of the hull. Maki (2016) concluded that the primary decrease in...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-2159
... Reel-laying rigid pipelines induce cyclic deformation that affect the section. Among other, excessive ovality may jeopardize pipe strength during installation & in-service. Previous works shown that conventional material stress-strain relation is no longer suitable for pipeline reel-lay...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1244
... condition recommendation production platform operation conceptual solution restriction southwestern part best possible facility topside installation construction process kara sea Conceptual Solutions for the Main Facilities of Field Development for the Arctic Shelf Oleg Finagenov Department...
Proceedings Papers

Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1288
... As offshore topside continues to become larger and heavier, the float-over method was developed and employed these days as the popular and efficient means for topside installations. Within the float-over method for the topside installation at offshore, passive jacking (rapid load transfer...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-417
... ABSTRACT Suction piles fabricated with glass fiber-reinforced plastic (GFRP) have been regarded as alternatives to conventional steel or reinforced-concrete suction piles to reduce the transportation cost and corrosion risk. However, difficulty may arise in suction installation due to the...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-616
... makes it possible to detect relative displacements between pile and sleeve of a grouted joint. It was installed and tested under maritime conditions on the support structure of a fully functional offshore wind power plant, approximately 25 m below sea level. The displacement measurement was performed on...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-596
... of the different bodies and connectors of the whole system. Results of the simulations will be used to guide the hydraulic system development and platform installation. INTRODUCTION The rapid load transfer technique is developed to combine active hydraulic jacking operation and ballasting...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-563
... ABSTRACT The installation and transportation of marine equipment facilities for large-scale projects need to be planned and executed with proper consideration for environmental conditions. The operational limitations of the ship movement should be considered in the design and plan. Based on...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-727
... distributive installation of piles into the backfill. In this study, the author focused on the effect of rigidity of the piles on the effectiveness of this countermeasure. Through the 3-D numerical analyses and brief model tests, it is confirmed that the installation of piles, even those with low rigidity, can...
Proceedings Papers

Paper presented at the The 29th International Ocean and Polar Engineering Conference, June 16–21, 2019
Paper Number: ISOPE-I-19-301
... elongation-tension curve hydraulic experiment wave period wave height experiment joint plate caisson type seawall design method wave pressure elongation wave action installation japan backfill sand deformation pvc Design Method of Joint Plates Installed in a Caisson Type...

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