Lloyd’s Register launches new risk-based inspection service for energy sector assets

Lloyds Register oil platform close to shore general viewLloyd’s Register has launched a new service for the energy industry which is likely to be of interest to operators of floating units at a fixed location, such as FPSO and FLNG vessels.

Called Risk-based Inspection (RBI), it enhances the traditional periodic approach to inspection planning and helps to achieve higher reliability and a longer operating time; minimising downtime and reducing risk.

To carry out a successful RBI program, Lloyd’s Register highlights that certain tasks need to be performed,  including: –

  • identification and definition of functional and physical relationships, interactions and dependencies of components
  • definition of the operating conditions and loading associated with each inspectable component
  • identification of the Common Cause Failure (CCF) of components
  • identification of the failure modes and degradation mechanism associated with individual components or group of components, and
  • identification of possible consequences due to failure of components.

Tim Walsh, Chief Operating Officer, Assurance Services, Lloyd’s Register, explained: “RBI techniques may be used to provide justification for the assignment of Class, and may be systematically applied to a hull structure and associated components or to individual systems, sub-systems or components.

“The most common deterioration mechanisms associated with hull structure components can range from coating failures, through to fatigue and stress built in to the structure during construction,”

“While the marine industry focuses on Class, the oil and gas industry applies asset integrity management and more often than not, a risk-based approach.

“To overcome this disparity in maintenance and management regimes there is a requirement of the Class societies to understand and appreciate what the FOI operators need and conversely the FOI operators need to understand what Class ‘does’. We are leading this approach for industry.”

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