Risk Based Maintenance of Petroleum Pipelines Risk Based Maintenance of Petroleum Pipelines
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Engineering Critical Assessments of Marine Pipelines with 3D Surface Cracks Considering Weld Mismatch
Offshore pipelines are usually constructed by the use of girth welds, while welds may naturally contain flaws. Currently, fracture assessment procedures such as BS 7910 are based on the stress-based methods and their responses for situations with large plastic strain is suspicious. DNV-OS-F101 with limited modifications proposes a strain-based procedure for such plastic loads. In this paper 3D ...
متن کاملExperiences in Implementing Risk-Based Inspection
Some of the 'early adopters' of risk-based inspection (RBI) failed to cross the RBI technology chasm because as pioneers, they were essentially experimenting with the suitability of this new technology, Figure.1. The followers ('early and late majority') can benefit from the experiences (failures and successes) of these trailblazers. RBI has received considerable attention since the American So...
متن کاملارزیابی ریسک خطوط لوله انتقال نفت و گاز بر مبنای روش Bow-tie فازی شده
Introduction: Nowadays, gas and oil account for 60 percent of world energy resources. Transporting crude oil and its products are accomplished through a number of ways among which pipelines are of the utmost significance. Considering the extent of pipelines in installation and residential areas and also high potential for damage, the safety of these pipes and application of risk management prin...
متن کاملRisk Based Maintenance of a Cross-country Petroleum Pipeline System
This paper proposes a data-driven approach in determining an optimal inspection interval for a petroleum pipeline system. The approach accounts for the determination of both the probability of failure and its associated consequences. The probability of failure is estimated by fitting the historical data of failure of the pipeline into either a homogenous Poisson process or non-homogenous Poisso...
متن کاملEffect of Structural Changes on Corrosion Inhibition Behavior of Synthesized N2O4 Imine Compounds for Steel Pipelines in Oil and Gas Wells
The inhibition properties of synthesized imine compounds N,Nʹ-bis(2,4-dihydroxyhydroxybenzaldehyde)-1,3-Propandiimine, N, N′-bis(2,4-dihydroxypropiophenone)-2,2-dimethylpropandiimine, N,Nʹ-bis(2,4-dihydroxyacetophenone)-1,3-Propandiimine has been investigated for API-5L-X65 steel corrosion in hydrochloric acid by scanning electron microscopy, potentiodynamic polarization and impedance spectrosc...
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