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51312-01087-Utilization of RBI Methodology for T&I Extension

Picture for Utilization of RBI Methodology for T&I Extension
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Product Number: 51312-01087-SG
ISBN: 01087 2012 CP
Author: Munther A. Al-Hammad
Publication Date: 2012
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$20.00
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Through the application of Risk Based Inspection analysis (RBI) at Haradh Gas Plant (KSA) process variables and materials of construction are considered to identify the type of damage that can lead to failure. This includes consideration of the failure place the frequency of inspections that should take place and appropriate and cost-effective inspection techniques. The analysis was performed for three different process units where API RBI program was utilized. The analysis demonstrated that all major equipment included in the assessments are in low stable risk while stainless steel pining is in high potential risk of Chloride Stress Corrosion Cracking (ClSCC) due to the presence of chloride in the process stream. As a result items with a high probability of failure and subsequent impact are given a higher priority for inspection than items that are of low impact allowing for a more rational application of inspection resources. To mitigate the risk in the stainless steel pipes the study recommended to implement additional inspection plans to oversee the potential crack damage. By applying such mitigation plans the possibility of extending the T&I cycle from 5 years to 7 years was also considered. The entire process results in focusing resources on specific assets that are most likely to pose a risk to the facility. The studies provide opportunities to reduce NDE and gain additional valuable through put realized from having the operating units on stream for longer periods.
Through the application of Risk Based Inspection analysis (RBI) at Haradh Gas Plant (KSA) process variables and materials of construction are considered to identify the type of damage that can lead to failure. This includes consideration of the failure place the frequency of inspections that should take place and appropriate and cost-effective inspection techniques. The analysis was performed for three different process units where API RBI program was utilized. The analysis demonstrated that all major equipment included in the assessments are in low stable risk while stainless steel pining is in high potential risk of Chloride Stress Corrosion Cracking (ClSCC) due to the presence of chloride in the process stream. As a result items with a high probability of failure and subsequent impact are given a higher priority for inspection than items that are of low impact allowing for a more rational application of inspection resources. To mitigate the risk in the stainless steel pipes the study recommended to implement additional inspection plans to oversee the potential crack damage. By applying such mitigation plans the possibility of extending the T&I cycle from 5 years to 7 years was also considered. The entire process results in focusing resources on specific assets that are most likely to pose a risk to the facility. The studies provide opportunities to reduce NDE and gain additional valuable through put realized from having the operating units on stream for longer periods.
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