Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 18, Part 2American Society of Mechanical Engineers, 1999 - Arctic regions |
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Page 226
... PROTECTION The design approach of the cathodic protection of offshore platform has to take into account the following aspects : environmental conditions · lifetime of the platform • geometry of the structure • handling and marine ...
... PROTECTION The design approach of the cathodic protection of offshore platform has to take into account the following aspects : environmental conditions · lifetime of the platform • geometry of the structure • handling and marine ...
Page 227
... protected , the coating break down and the protection currents densities , the protection current demand ( Is ) is calculated for each stage of structure life by the following relationship : where : • Is Is = ( Swn + SwpxCB ) > iw + ...
... protected , the coating break down and the protection currents densities , the protection current demand ( Is ) is calculated for each stage of structure life by the following relationship : where : • Is Is = ( Swn + SwpxCB ) > iw + ...
Page 229
... protection potential readings carried out on the jacket during the previous underwater inspections show a satisfactory level of corrosion protection . In particular during 1992 inspection the minimum reading shows a figure close to ...
... protection potential readings carried out on the jacket during the previous underwater inspections show a satisfactory level of corrosion protection . In particular during 1992 inspection the minimum reading shows a figure close to ...
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Common terms and phrases
API RP applied ASME assessment axial Bay of Campeche bending bending moment brace calculated capacity cathodic protection chloride components Conference On Offshore considered Copyright correlation corrosion corrosion rate crack crest damage defined Det Norske Veritas detection developed element environmental equation estimated evaluated event extreme value extreme value distribution extreme wave factors failure modes failure probability failure rates fatigue Figure fractile Gumbel distribution hull initial inspection installation interaction joint linear load effect marine fouling mean value Mechanics and Arctic method Nakhodka nonlinear normal Offshore Mechanics offshore structures operating OREDA parameters PEMEX performed pipeline platform predicted probabilistic probability of failure procedure QA/QC random random variables ratio response riser risk safety scatter diagram scenarios sea-states ship simulation SINTEF spectral statistical strength stress surface Table tendon uncertainty variables wave groups wave height wavenumber Weibull distribution weld wellhead