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Technology >
“Studies in a number of countries have attempted to determine the cost of corrosion. The most extensive of these studies was one carried out in the United States in 1976; it found that the overall annual cost of metallic corrosion to the U.S. economy was $70 billion, or 4.2% of the GNP.”
IC-Finesse is Wood Group Integrity Management’s pipeline Fitness-For-Purpose (FFP) assessment tool, developed internally and fully validated to assess fitness-for-service to a number of internationally recognised codes. It is designed to assess the fitness-for-purpose of asset(s) with regards to its current and future operating condition, utilising inspection data from inspection tools and corrosion management data. The focus is primarily on pipeline FFP, but a flexible hierarchy system allows collation and assessment of other pressure retaining equipment.
Data from inspection tools (including ultrasonic probes and magnetic flux leakage intelligent pigs) are imported into this system and the data assessed/manipulated to determine fitness-for-service and repairs needed for the pipeline in question.
IC-Finesse allows for rapid assessment of pipeline defect information (specifically pigging data), against a broad range of international FFP codes. It accommodates specific pigging information such as tool uncertainty, corrosion growth models, complex defect assessment and interacting 'defect colony' fitness-for-service. It also allows forward-looking repair schedules to be generated based on known or expected defect growth.
IC-Finesse can deliver the following benefits when used to assess pipeline fitness-for-purpose:
- Calculation time is replaced with analysis time
- ‘What If Analysis’, based on future asset fitness-for-purpose, allows operators to optimise the return on asset
- Repair scenarios assists the operator with planning and budgeting
- Anomaly mapping (type and position) and overlays of relevant data (e.g.
Bathymetric Survey) can provide insights into modes of damage
- Following successive IP surveys, run comparisons can provide assistance with determining if anomaly growth is under control
IC-Finesse allows the operator to understand the current and future fitness-for-purpose of their assets assessed to the following codes/recommended practices:
- ASME B31G
- AS 2885.3
- NG-18
- RSTRENG (simplified and LAPA/effective area methods)
- DNV RP F101 (allowable stress approach and partial safety factor methods)
- API RP 579 (only for brittle fracture of pressure vessels and associated piping using add-ins)
- Shell 92
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