3405 Guidelines for the assessment of corrosion threats in risk-based inspection

Overview:

This Guidance provides detailed information to help the upstream oil and gas industry align on good practice for Corrosion Threat Assessment (CTA) to direct Risk Based Inspection (RBI) and other corrosion management activities.  It is consistent with key available public domain guidance but emphasises important factors for success with reference to North Sea experience.

The purpose of CTA is to assess and document material degradation / corrosion threats against equipment items ensuring that corrosion management activities such as inspection and monitoring activities are aligned to risk. Understanding equipment condition provides visibility of risk, enabling targeted programs of work to be delivered which has significant benefits particularly in a constrained operating climate.