TAKING INSPECTION A STEP FURTHER
We provide a range of specialized industrial and inspection services to the petrochemical, refining and pipeline industries. Our inspection services primarily relate to ultrasonic inspection of pipelines, furnaces and heaters and include pre-cleaning and integrity assessments.
Various instrumented pigs are currently available for carrying out three general types of pipeline inspection surveys:
1. Metal loss survey
2. Geometry survey
3. Geography survey
The acclaimed Piglet® patented by our partners, combines the advantages of ‘free-swimming’ and ‘cable-operated’ inspection systems, thereby eliminating the disadvantages of both.
Perhaps, the most advantageous aspect of the Piglet system is the accurate geographical location of pipelines, especially in populated areas where the right of way has been obliterated. To take care of this increasing need on the part of pipeline owners, our partners pioneered the ‘inertial mapping survey’, which provides accurate geographical location of the pipeline, to be incorporated into client’s GIS.
The merits of the Piglet system include:
- Accurate geographical coordinates of any features found by the pipeline inspection tool, including metal loss areas, dents, ovalities and girth welds
- Identify orientation and physical characteristics of bends, e.g. radius, angle
- Identify local areas of pipeline movement (displacement) and use the data obtained for strain, or stress, analysis.
