... ABSTRACT S-lay installation of a 6-inch small-sized SCR with flexible joint assembly in the 2nd end is investigated in this paper. Due to the huge difference in external dimensions, weights and bend stiffnesses between the riser pipe and the flexible joint, passing through the S-lay vessel...

... sections. In the end, the validity of this method is verified by comparing the FE results with the site measurement for pipelines with under-rotated RC sections mitigated after installation on seabed. The effectiveness and the reliability of the proposed method for incorporation of torsional friction in FE...

... ABSTRACT The field for the Lingshui 17-2 project is located on the northern part of the Qiong-dong-nan Basin on the western continental shelf of the northern South China Sea, with water depth of 1220m to 1560m. This paper discusses the development and installation of the SCR pull-in systems...

... ABSTRACT Suction bucket jacket foundations are novel foundation solutions for bottom-fixed offshore wind farms and are gaining popularity in China. However, in many Chinese offshore wind farm sites, layered clay and sand ground conditions are frequently encountered which pose installation...

... installation cyclic load history ABSTRACT This article presents a framework for a consistent, rigorous, and super-fast suction caisson design. By considering cyclic loading effects and implementing all relevant geotechnical design tasks in a semi-automatic design tool, a wide range of different site...

... subsea system marine transportation operation topside float-over operation upstream oil & gas fender voyage hvdc topside cog jacket slot topside cog engineering design surge fender dp vessel stern arrive installation sway fender dp float-over topside weight ABSTRACT...

... ABSTRACT In China, due to very thick silty soil top layers existed in many offshore wind farms, the self-elevated offshore wind turbine installation units are not versatile, and therefore the installation of the offshore wind turbine tower and nacelle by floating crane vessels is demanded...

... there are 17 hang off lines on the turret, namely 6 risers, 3 umbilicals and 8 multicore subsea power cables. All of them enter the turret from bottom and run up into the swivel stacks. The Liuhua turret is the biggest and most complex turret ever built and installed in China. Fig.1 shows the general...

... floatover installation beam wave load transfer stage floatover method subsea system characteristic pre-mating phase horizontal motion installation upstream oil & gas topsides south china sea lmu force fender force maximum value design value jacket platform response...

... diameter ratio load condition explicit quasi-static solution rubber ring leg mating unit vertical condition structural optimization upstream oil & gas stress diagram optimization lmu structure subsea system lmu sandbox stress level installation ABSTRACT Leg mating unit...

... surveillance production control pipeline subsea system upstream oil & gas production monitoring installation integrity pipe joint water depth line pipe coating black sea turkstream pipeline collapse resistance strength wall thickness chaudhuri requirement resistance collapse pressure...

... ABSTRACT A protection frame is urgently needed by subsea hot-tap tee and its control valve in shallow water subsea engineering to against the fishing gear and dropped object. And the hot-tap protection frame can also be used as an installation assistant for the hot-tapping tool orientation...

... ABSTRACT Offshore wind energy continues to be a key technology towards the generation of electricity from renewable energies. Turbine dimensions are becoming larger and larger, and the turbines are installed at greater distances from the coast and in deeper waters. This leads to more and more...

... coordinate system wind energy social responsibility sustainability sustainable development offshore projects planning and execution single blade matrix installation tugger line gravity wind turbine control system wind-induced load platform design lifting vector simulator blade...

... analysis between the variation in cone resistance (which is determined by the CPT data) and the variation in penetration resistance (which is determined by in-situ installation records) at different penetration depths. Based on the installation record of a small number of suction bucket foundations...

..., the complex turret system ever built in China etc. Due to the criticality of the facilities, a comprehensive monitoring system was installed to the FPSO and mooring to collect environmental data, FPSO motion as well as mooring line angles. This article is intended to share the major challenges as well...

... the process from preliminary foundation proposal, design The SPM CALM Buoy System provides the supporting role to the phase to pile subsea installation in Brunei. Taking into account the Hengyi Industries Sdn Bhd s PMB petrochemical project. It is a typical effects of CAPEX and installability, an innovative...

.... passenger transportation ship consideration requirement passenger ship passenger gm margin gm curve damage stability stability foam installation installation vassalo life-cycle stability management marine transportation paterson boulougouris loading condition Proceedings of the Thirty...

... Abstract Using the time domain finite element analyses and considering 95% non-exceedance installation currents, the dropped PLET and flowline configurations as well as the resulting footprints on the seabed in the vicinity of two existing gas export pipelines were used as the guides...

... sustainability application accident frequency hazard freight & logistics services social responsibility ship ferry top event installation hazid battery room university consequence risk assessment dnv gl probability battery Proceedings of the Thirty-first (2021) International Ocean...