Abstract At present, most of the insurance claims in offshore wind industry are due to cable failures where a large percentage occurs during installation array and export cables. As reliability cables depends on location method, it is important map risks involved, which can compromise cable’s integrity individual projects. This paper presents sensitivity analyses conducted crucial parameters la...

A vision of the digital twins subsea pipelines is provided in this paper, with a coverage current applications and challenges design, construction, service life, assessments life extension. Digital are described as paradigm combining multi-physics modelling data-driven analytics, which used to mirror its corresponding twin. Realistic virtual models structural systems shown bridge gap between de...

To bridge the gap that exists in key equipment of new subsea production control system, all-electric gate valve actuator, and exploit oil gas resources with high reliability safety while saving energy, this paper proposes a novel concept prototype an actuator which has functions redundant drive, failsafe closing, auxiliary override, position indication, low-power holding. It satisfied electrica...

Remotely operated vehicles used for inspection and maintenance of subsea installations are guided using visual feedback from several vehicle mounted video cameras. These are augmented by position estimates from a navigation subsystem. A system is described which improves the quality of the video images by real-time video enhancement. The current generation of vehicles are limited in their opera...

Subsea templates are steel structures used to support subsea well components. Normally, offshore crane vessels employed install them the target location on seabed. Crossing splash-zone during lowering of a template is considered most critical phase installation due slamming loads and needs be studied provide operational weather criterion planning phase. In this study, dynamic response analysis ...

Offshore windmills and pipeline networks are examples of strategic infrastructures used for the production clean energy storage long-distance transportation hydrocarbons, hydrogen water. The relevant structural elements mainly made welded portions steel pipes, which often interact with aggressive fluids hostile environments. Material aging is thus accelerated localized damage processes promoted...

Referential integrity underlies the relational representation of objeceoriented structures. The concept of referential integrity in relational databases is hindered by the confusion surrounding both the concept itself and its implementation by relational database management systems (RDBMS). Most of this confusion is caused by the diversity of relational representations for object-oriented struc...