... Abstract Subsea Umbilicals are design to supply different functions, according to the needs of subsea production systems. These needs can include power distribution, monitoring, hydraulic and electric control. Ultra deep waters already present a challenge to the mechanical design...

... Abstract With the development of deep-water offshore oil & gas and the extensive application of subsea high-voltage equipment, integration of 66kV power cable into umbilical will become a trend. With the increasing water depth of oil & gas field development, how to verify...

... based on linear wave theory that do not include NLS and MDB in their calculations. nonlinear ocean waves nonlinear Schrödinger equation umbilical mooring-line bending stiffness open-source wave energy WEC-Sim Proceedings of the ASME 2023 42nd International Conference on Ocean, Offshore...

... optimized power cable configurations have a shorter cable length than the initial configurations. Dynamic analyses of the optimized configuration show that it satisfies the design limits. optimization dynamic cable configuration umbilical power cable floating offshore wind turbine Proceedings...

... Abstract Concrete mattresses are widely used in the offshore industry for a variety of purposes, including to stabilise pipelines, flowlines and umbilicals, provide supports for span correction or crossings over other services and for scour mitigation. Despite their widespread use...

... Abstract It is essential to calculate the mechanical stress efficiently in power cables, umbilicals and hybrids to reduce the risk of failure and halts during production, transportation, installation and operation phases. The global analysis, where these conditions are simulated, can under...

... to the consumer — whether the collection device at the end of the line is wave, tidal, fixed or floating wind. These novel design methods are equally applicable to umbilicals and other small diameter pipelines. Existing oil and gas pipeline codes overlook much of the physics that is relevant to small diameter...

... Abstract Subsea umbilical cable modeling has been widely employed in solving practical engineering problems, including wave energy converter (WEC) array system, offshore oil and gas platforms and floating production systems, remotely operated vehicles (ROVs) in naval operations...

... Abstract Subsea earthquakes have the potential to cause mudslides on the seafloor. These extreme events can have a significant impact on the structural integrity of subsea flowlines and umbilicals. A numerical geohazard study is performed on a subsea mudslide event occurring at an escarpment...

... Abstract Integrity and stability of Remotely Operated Vehicle (ROV) when passing through the splash zone is one of the main concerns in the design of an ROV-umbilical system. Due to the lightweight nature of ROV in water, the umbilical experiences repetitive rapid transitions between slack...

... Abstract The umbilical which consists of hydraulic tubes, electrical cables and optical cables is a key equipment in the subsea production system. Each components perform different physical properties, so different cross-sections will present different geometrical characteristic, carrying...

... Abstract Unique umbilical designs for wave energy converters (WECs), including the ability to handle significantly larger motions and loads over long deployments, are often required when conventional marine umbilical designs for offshore oil and gas and offshore wind may not meet the design...

... Abstract One of the major failure modes of an umbilical is found to occur under simultaneous bending, tension and torsion. Umbilical cables are compatible in bending but have a rigid response to tension and torsion, hence validation the axisymmetric performance of it, is a significant matter...

... Abstract Nowadays, the weight of steel pipelines restricts the development process of deep-water oil and gas. Using spiral carbon fiber reinforced rod instead of the steel armored layer in the umbilical can effectively solve the contradiction between carrying capacity and self-weight...

... Abstract Two dynamic umbilicals in a tethered lazy wave configuration were required to be wet parked in an ultra-deep environment with a water depth in excess of 2900m. The close proximity to the pre-installed mooring lines, along with the in-place configuration requirements (seabed connection...

... Umbilicals use steel tubing of different sizes to carry various pressurized fluids. During manufacturing, transportation and installation of the umbilicals, the tubing is subjected to reeling and unreeling operations, resulting in a cumulative amount of plastic strain. The amount of strain...

... VIV fatigue bandwidth umbilical riser The application of a method for fatigue damage assessment applied to the relative effects of mooring, wave, and Vortex Induced Vibration (VIV) is presented. It is a simpler procedure than rainflow counting and uses a bandwidth parameter...

... the Foinaven Umbilical Monitoring System (FUMS) have enabled a detailed review of more than 22,000 records of curvature and other key parameters, each of about 7 minutes duration from January to May 2001. A strategy had to be established to process in an efficient manner the very many records. This paper...

... 07 10 2008 One key component of umbilicals is the steel tubing carrying the pressurized fluids. During manufacturing and deployment of the umbilical, the tubing is subjected to a series of reeling and unreeling operations, resulting in a cumulative amount of plastic strain...