5 entries found for "Damage Mechanisms"

  Risk Strategies for Pressure Retaining Equipment

by Michael Hurley, 7/11/2024

Tags: API 580 API 581 Damage Mechanisms Mechanical Integrity Risk Based Inspection

What are equipment/inspection strategies in relation to mechanical integrity (MI) and risk based inspection (RBI)? It is a simple answer, but can be complicated to produce a documented set. API RP 581 has gone as far as the RAGAGEP can go since it is up to the Owner/User to define them as they are responsible for their risk. Knowing strategy/effectiveness tables are likely to be used without modification therefore AOC created a set that can be used as inspection recommendations out of the box.


  A Practical Way to Incorporate the New PHMSA Underground Gas Storage Requirements Into your MI Program

by Michael Hurley, 3/11/2021

Tags: Damage Mechanisms Inspection Mechanical Integrity Process Safety Management Regulation Risk Analysis Risk Based Inspection Risk Management

PHMSA has out a new rule for underground natural gas storage facilities (UNGSFs). This is practical approach to incorporating gas wells into your mechanical integrity program with the rest of your surface and subsurface assets.


  Guidelines for Providing Process Conditions for RBI - Part 7: Environmentally Assisted Cracking and RBI

by James Leonard, 9/1/2019

Tags: Damage Mechanisms Data Collection Risk Based Inspection

The 7th installment in our series covers environmental cracking. James Leonard, RBI Team Leader, discusses the additional process data that may be needed to determine environmental cracking damage potential when environment, stress, and metallurgy are so alligned so as to indicate susceptibility to this damage mechanism.


  Guidelines for Providing Process Conditions for RBI - Part 6: High Temperature Hydrogen Attack (HTHA)

by Vibha Zaman, 8/26/2019

Tags: Damage Mechanisms Data Collection Risk Based Inspection

Gathering adequate process data to determine HTHA susceptibility is sometimes a difficult and time consuming task. Therefore a simple screening can be performed to determine if more detailed process data is required. Senior Corrosion Specialist, Vibha Zaman, discusses the screening process and what factors to consider when more data is required.


  Guidelines for Providing Process Conditions for RBI - Part 4: High Temperature Damage Mechanisms

by Leomar Penuela, 5/7/2019

Tags: Damage Mechanisms Probability Risk Based Inspection

In this fourth, of our eight-part series covering various guidelines for providing process conditions for Risk Based Inspection (RBI), a senior corrosion specialist discusses two groups of damage mechanisms that can result from high temperatures. We note that the standard inputs to your RBI software are not always sufficient to capture these damage mechanisms and provide some additional guidelines to take into consideration.