000 02380nmc a2200229 4500
005 20260520010350.0
008 260224s xxu
082 _aPD I116 4 0015588
245 0 0 _aInspection cost reduction for fixed offshore platforms based on risk based inspection approach through advanced fatigue analysis
270 _a5/6/2019 ; 29/06/2017
300 _a11 p.
520 _aIt is a common offshore practice to define the inspection plan for condition monitoring based on simplified standards recommendations and engineering judgment / experience. As results of the inspection program, a general visual inspection associated with a more accurate method is commonly selected by owners / operators in order to inspect critical components based mainly on platform qualitative risk categorization and structure integrity assessment. Considering the high influence of fatigue degradation on the safety of fixed installations, standards consider this failure mechanism as the key aspect to define an inspection plan. Aiming inspection cost reduction, a risk based inspection approach was proposed. Risk Based Inspection (RBI) provides a consistent framework for decision making under uncertainties in which the optimal inspection strategy can be selected based on the risk it implies. The cost reduction is even more evident when the RBI is associated with advanced fatigue analysis. In contrast with the traditional fatigue analysis, the main focus of this paper is to show the advantages of performing advanced analyses in order to reduce the conservatism in the calculation and, consequently, to acquire a more accurate fatigue life. With the purpose of identifying the influence of the proposed advanced approach in the inspection cost reduction against the traditional approach, a case study was developed and comparison is presented in this paper.
773 _g
942 _cCONGTP
100 1 _aNascimento, Paula T.
_956781
100 1 _aMello, Thalita S.
_956782
100 1 _aCoelho, Cecilia M. M.
_956783
100 1 _aRodrigues, Marcos
_956766
111 2 _aCongreso de integridad en instalaciones en el upstream y downstream de petrĂ³leo y gas (3er. : 2017 30 mayo - 1 jun. : Buenos Aires)
_956732
999 _c190516
_d190516
856 _uhttps://biblioteca.iapg.org.ar/ArchivosAdjuntos/CongresoDeIntegridadEnInstalaciones2017/941.pdf