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Optimising Risk-Based Inspection with THEIA


Managing Operational Risks With Effective Technology

Over the last few years, it has become increasingly important to manage operational risks with the usage of effective technology and best practices for inspection and maintenance, whether it be a plant or pipeline. When looking at risk assessment practice in oil, gas and petrochemical plants, one of the most profitable maintenance methodologies today is the risk-based inspection (RBI). Risk-based inspection is a risk assessment and management process, which defines the risk as the function of the likelihood of the degradation of a material failure occurring and the consequences associated with that failure, which is usually loss of containment. The team behind THEIA, Penspen’s pipeline integrity management solution has developed a module centered specifically around Risk-Based Inspection, providing the capability to define and measure the risk of plant equipment in a cost-effective, reliable and quick manner.


THEIA’s Risk-Based Inspection Programme

THEIA’s ‘Risk-Based Inspection’ Programme is a fully quantitative RBI software that identifies damage mechanisms, calculates corrosion rates, determines damage susceptibilities, estimates current and future risks, and recommends optimum inspection plans. The programme consists of key capabilities to help users create a scheme of inspection for the machinery of a plant:

  • Corrosion Risk Assessment (CRA) – can identify the applicable damage mechanisms and quantify several corrosion and degradation mechanisms
  • Life Extension (LE) – can predict future potential risks, and create a documented Life Extension process that will be implemented
  • Remaining Life Assessment (RLA) – can evaluate and assess the remaining life of the asset


Improve Capability to Define and Measure Risk

Implementing THEIA’s RBI module will allow users to improve their capability to define and measure risk, which in turn creates a powerful tool for managing many of the important elements of a plant. Engineers can systematically reduce the likelihood of future failures by correctly utilising the inspection resources when said inspection is conducted. Ranging from subsea pipelines to heat exchangers & storage tanks, the software applies to a wide variety of cases, and will assist engineers in figuring out the how, where, when, and what to inspect.



Resource and Time Savings for Future Projects

THEIA’s ability to prioritise assets for inspection based on associated risk by focusing inspections on priority assets, allows users to maximise resources by concentrating them on equipment with higher risks while avoiding assets with inconsequential risk, saving engineers significant time and effort. The use of THEIA’s Risk-Based Inspection programme is a tool that can prove integral when conducting any form of risk assessment practice.

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