... resulting in potential loss of asset integrity, environment pollution and operator's reputation. In regions with a high level of fishing activities, a protection frame is often deployed to protect the critical components of the seabed tree to ensure its safe and continued operation. In the present study...

... with mooring chain winches, allowing for pull-in of the chains during installation/hook-up and replacements, and for adjusting position or tension during operation. For these platforms the excess chains are stored on the platform, normally in chain lockers. These chains, not loaded in daily operation...

... Association) and promoted by New Energy and Industrial Technology Development Organization (NEDO) in Japan. This pilot LH2C, the "Suiso Frontier," debuted in 2021 to demonstrate a series of operational stages ranging from the initial cooling down/ loading/unloading of LH2 to sea-going operations using a newly...

... ABSTRACT Crew transfer vessels (CTVs) play important roles for operation and maintenance in conditions of offshore wind. When engineers are needed to transfer to offshore wind facilities for various maintenance operations on site, in most cases, the captain of the CTV pushes the vessel bow...

... matrix operation artificial intelligence rao simulation crane vessel crane load crane load motion natural frequency crane pendulum lift condition crane operation model test load case simulation model originate Proceedings of the Thirty-third (2023) International Ocean and Polar...

... ABSTRACT Launching is one of the crucial operations during offshore installation of a mega deep-water jacket. Haiji-1 mega jacket successfully launched in South China Sea at a water depth of 283 meters on April 10, 2022. In this paper, a comparative study on field motion measurement...

... legs. The launch weight of the Jacket is 30,200 m-tons, the module operating weight is approximately 17,000 m-tons which was installed by offshore lifting, the east and west module lifting weight are both about 3,500 m-tons. The LF15-1 platform configuration is shown in Figure 1. compartment...

... in this field. Hence, a framework is introduced by specifying each operation in the process such as decommissioning, demounting, cleaning, modification, material quality and geometry checks. An index is introduced to check the degree of reusability. Knowledge and research gaps related to technical, economic...

... steel gravity-based structure sim offshore steel gb operation substructure assessment api rp 2sim caspian sea non-structural hazard Proceedings of the Thirty-third (2023) International Ocean and Polar Engineering Conference Ottawa, Canada, June 19-23, 2023 Copyright © 2023...

... failure mechanism gabrielsen high strength upstream oil & gas wind energy high-strength mooring chain martensite stern roller mooring system anchor incident standard update installasjoner untempered martensite consideration operation proceedings ndteringskonferansen hardness mobile...

... ABSTRACT In recent years several incidents related to failures of high strength mooring chains used in mobile offshore units mooring systems have been reported. Investigations of some of these incidents have been carried out by, or on behalf of, the chain owner, the rig owner or the operator...

... residual curvature method operation installation integrity asia government orientation lateral hydrotest offshore pipeline designing residual curvature method horizontal orientation flowline buoyancy module rc orientation span Proceedings of the Thirty-third (2023) International Ocean...

... trunnion receptacle protection frame old riser clearance installation new riser operation topside arrangement clamp receptacle clamp elevation platform Proceedings of the Thirty-third (2023) International Ocean and Polar Engineering Conference Ottawa, Canada, June 19-23, 2023 Copyright ©...

... ABSTRACT Deepwater drilling riser is the key technology equipment in deepwater drilling, and its safe and reliable operation is related to the success and economy of deepwater drilling operations. Under certain operating conditions, the riser will be in hang-off mode. Ensuring the safety...

... deposition in deep water pipeline is conducted, and the relevant pigging operation principles are given. The allowable maximum wax deposition thickness of the total flow line profile is recommended for the subsea production system. Since the wax removal simulation is dependent on the selection of modeling...

... production storage and offloading united states government fpso platform platform winch uta umbilical end stiffener crane initial installation floating production storage & offloading controls and umbilicals winch junction box operation requirement cable tensioner surface unit...

... ABSTRACT The trawling operation is one of the main ways of the fishing operation. Among them, warp tension can be used as an important parameter for the trawling automatic control. We independently designed and produced two important devices, and applied them in the real sea trials. After...

... navigation at fixed depth, thus saving energy. INTRODUCTION As an important substitute and executor of human activities in the ocean, especially in the deep sea, AUV has been widely used in scientific research, ocean operations, salvage and lifesaving, and its application prospects are very broad...

... ABSTRACT Additional strengthening of vessels intended to operate in ice range from very light scantling increases to accommodate minor interaction with ice up to the creation of very significant icebreaking structures. These structures are measured by an Ice Class notation assigned...

... ABSTRACT Marine operations require careful early planning and thereafter detailed planning prior to project execution. The time from initiating an operation to finalization of the activity is typically several days. The activity can only be conducted during limited weather conditions...