The Petroleum Safety Authority Norway (PSA) has conducted a study with The Welding Institute (TWI) to obtain an overview of the information and knowledge required to determine whether an ageing offshore process facility can continue production beyond its design life.
The report is limited to main process equipment, technical safety systems and structures in the process facility, and is a continuation of the report entitled "Plant aging, management of equipment containing hazardous fluids or pressure" on aging process facilities, issued in 2006 by the British HSE.
The report describes areas in the process facility that have the greatest risk of faults, as well as the functional barriers needed to protect against such potential faults. Indicators for measuring the integrity of the facility are addressed, including design and operational lifetime, compliance with specifications and standards, inspection and measuring results, as well as other analyses and evaluations to check that the facility is capable of operating beyond the original lifetime.
Potential obstacles for life extension are discussed, and factors that may affect the risk, spread and speed of aging are identified.
This work is part of the PSA's main priority efforts in the area of aging and life extension.
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