Surveys
- CIPS-Close Interval Potential Survey
- DCVG method for locating the insulation defects of pipe line
- GPS-Global Positioning System
- Cathodic protection of city steel pipeline systems
- Stray current interference testing
- Soil Electrical resistivity survey
- Soil pH and Redox potential survey
- Pipeline Depth Measurement
Corrosion Inspection of Pipelines
“Corrocont Ltd. developed the integrated intensive method”, the unique combination of the CIPS and DCVG inspection.
Some typical application
- to evaluate pipeline coating and define rehabilitation requirements
- to locate insulation defects
- to collect on and off potential data along the pipeline
- to analyze the protection level with special regard to the potential value at the coating defects
- to classify defects
- to define weaknesses in the cathodic protection system
- to investigate stray current
- to find short-circuited casing, etc.
- to propose the necessary action
Simultaneous CIPS and DCVG methods
The simultaneous application of the CIPS and DCVG methods has numerous advantages over other diagnostical solutions:
- every insulation defect belongs to structure/corrosion potential value
- these measured (real) values serve the basis for the calculation of the insulation defects (% IR)
- the potential measurement takes place exactly above the pipeline
- the measurement needs only one team performing one survey