... Abstract Petrobras has operated offshore production units on the Brazilian coast for over 25 years. Over time, its facilities are expected to degrade due to the variety of mechanisms of damage that the offshore environment provides. Mooring systems are among the assets that present degradation...

..., the wave-drift load may increase due to the presence of current. A DP system will give much stronger damping than a mooring system of similar restoring stiffness. This will alter the characteristic of the vessel's low frequency motion, which will tend to be exponentially distributed. A consequence...

.... Mean offset is also compensated. Position gains, damping gains and wind feed forward included. Position control, damping and environmental compensation included. Mooring-DP load sharing = 0 Mooring system in pretension setup, all offsets are to be compensated by the thrusters Pre-tension mooring...

... Abstract In 2009, the Vito field was discovered in more than 4,000 ft of water approximately 150 miles offshore from New Orleans, Louisiana. The project produces from reservoirs nearly 30,000 feet below sea level. This paper provides an overview of the Hull & Mooring system, executing...

... Abstract DNV initiated the TAM JIP in 2019 motivated by i) that the industry has experienced mooring line failures where non-optimal operation of thruster assisted mooring systems is believed to be a contributing factor, and ii) that last generation semi-submersible drilling units rely more...

... of the platform, was identified as the main cause for the reduced VIM response. In this paper a coupled approach between the CFD code ReFRESCO and the time-domain mooring code aNySIM-XMF is utilized to investigate the effect of the damping from the riser and mooring systems on the VIM response of a semi...

... Production Unit (FPU). This work addresses the feasibility of an optimized FSHR concept, the Free-Standing Integrated Riser (FSIR), where the pipeline is integrated to the riser by means of a transition section, which is kept in place by a multiple line mooring system, which is designed to keep...

... and innovation on Floating Offshore Wind Turbine (FOWT) technology are progressing to improve the feasibility as well as the economy of the projects. Mooring system is part of major costs components in Floating Offshore Wind (FOW). Reducing mooring loads is desirable to create more room for optimization...

... and discussed in both frequency and time domain to understand its impact on the mooring system response. The yaw misalignments studies are presented for the normal operational DLC1.1 and DLC1.3 with both colinear and cross combinations of the wave, wind, and current conditions. Challenges and benefits...

...Introduction: Turret Mooring Systems Turret and other Single Point Mooring (SPM) systems have been in operation for over 50 years, with several still operating for over 30 years. The key to operational performance, many times beyond the original design life, has been a combination of robust...

... Abstract This paper presents the mooring system supply and management model and the design of anchors for a semi-commercial Floating Offshore Wind Farm (FOWF): WindFloat Atlantic. A Project Management and Engineering (PME) model has been developed and employed for effective delivery of various...

... The WindFloat was designed to support the MHI Vestas V-164 8.4 MW wind turbine onto one column for each of the identical units of the WFA project. Three mooring lines are arranged in an asymmetrical fashion to provide a mooring system with low pretension requirements. The mooring system...

...-electric developments. ocean energy umbilical sustainable development controls and umbilicals mooring system subsea system subsea production equipment renewable energy sustainability social responsibility north sea deployment umbilical cable seafloor junction box subsea battery pb3...

... digital twin wellbore design information mooring integrity management subsea system mooring system mechanical engineer international conference case study external environmental condition offshore technology conference fatigue life inspection data template Introduction and Background...

... Abstract Safe and reliable access to offshore energy, whether it be through hydrocarbon or renewable sources, requires offshore infrastructure held on station by well designed, well installed and well monitored mooring systems. The bounds of what is possible with mooring integrity monitoring...

... The challenges and evolutions in the offshore field have also provided this outpouring of the use of polymeric synthetic fibers in mooring systems. The facilities developed were: Floating Production, Storage and Offloading (FPSO), Floating Point Unit (FPU), Floating Offshore Wind Turbines (FOWT...

... was connected to lazy wave to achieve this transient configuration, maintaining the operating radius of the power cable, with correct I-tube entry angle. For Windfloat floater design, the I.tube are disconnectable from the floater and is self standing in case of disconnection of floater. mooring system...

... Extreme environment condition used in the mooring system design are summarized in Table 3 . Design Criteria The mooring system is designed to withstand a 25-year lifetime without dry-docking after installation of the FLNG on site. The safety factors [ 1 ] and maximum allowable FLNG...

... mooring system bar diameter centerline side straight section caliper measurement procedure inter-grip length mooring chain weld side Introduction The authors undertook an inspection that demonstrated the technology for high-fidelity imaging and accurate contactless measurement of mooring...

... of floating stability. fpso drilling equipment subsea system floating production storage & offloading process safety mooring system upstream oil & gas floating production storage and offloading proactive management fatality safeguard operation collision scenario vessel collision...