MIC remaining life predictions in piping systems
MIC remaining life predictions in piping systems
(OP)
Dear All,
I would appreciate your help and input pertaining to remaining life assessments of MIC in piping systems. From my understanding MIC is both unpredictable and time independent which raises concerns when estimating remaining life from inspection data.
Q1: What is current practice for evaluation of the above?
Multiple damage mechanisms
Q2: When MIC is a potential damage mechanism in conjunction with a time dependent mechanism such as CO2 corrosion, how does one identify the driving damage mechanism and then estimate the remaining life?
Thank you,
RS
I would appreciate your help and input pertaining to remaining life assessments of MIC in piping systems. From my understanding MIC is both unpredictable and time independent which raises concerns when estimating remaining life from inspection data.
Q1: What is current practice for evaluation of the above?
Multiple damage mechanisms
Q2: When MIC is a potential damage mechanism in conjunction with a time dependent mechanism such as CO2 corrosion, how does one identify the driving damage mechanism and then estimate the remaining life?
Thank you,
RS





RE: MIC remaining life predictions in piping systems
What drives the remnant life assessment is the inspection results - regardless of whether it is CO2 corrosion , MIC, oxygen corrosion, or whatever other degradation mechanism - and any other monitoring data that can generate pertinent information. The challenge is to derive useful degradation rates from the inspection data as is discussed in NACE Corrosion 2006, Paper 06380 and in Inspectioneering Journal, September-October 2013, A Discussion on the Piping Thickness Management Process - Part 5: Circuit Thickness Data Analysis
Steve Jones
Corrosion Management Consultant
http://www.linkedin.com/pub/8/83b/b04
All answers are personal opinions only and are in no way connected with any employer.