TANK INSPECTION

BACKGROUND

Inspecta International uses the Floormap VS2i, a computerised magnetic flux leakage system designed to detect, size and map underfloor corrosion on above ground storage tanks. 

Key features include:

• High grade magnets to improve corrosion detection,
• Accuracy to within 3mm on 8 metre length,
• Maximum thickness of 12 – 20 mm (depending on mode)
• Combined defect profiling & amplitude analysis.
• Real time data acquisition,
• Automatic CAD Drawing
• Ability to add data from VT, UT, MT, Vac box.

PROCEDURE 

1. Powerful magnets are used to generate magnetic fields in the test material.
2. Where there is a discontinuity, the field “leaks” from the plate, and is detected by a sensor in between the poles.
3. The leaks are then used to characterize any defects.
4. The motorized Floormap VS2i moves along the surface at 0.5m/sec creating a corrosion map.

REPORTING & ANALYSIS

• Colour coded CAD drawing of tank floor and individual plates.
• All data >20% loss of nominal is re-analysed to identify the defect.
• Additional NDT data added to create a comprehensive map (including annular plates).
• Subsequent data can be overlaid to identify corrosion growth.
• Statistics created for entire tank or individual plates.
• Patch plate design tool produces a repairs list of material and amounts.

Should you require further information regarding our Pipeline Integrity services, please contact petrohouse by emailing reda@petrohouse-eg.com, or contact your local office who will be happy to answer any queries www.petrohouse-eg.com.