Buried pipeline coatings must be evaluated regularly to assess condition, identify degradation, and prevent potential integrity failures. An Alternating Current Voltage Gradient (ACVG) survey is an advanced indirect inspection technique designed to evaluate the coating condition of buried pipelines and accurately locate coating defects, or “holidays”.
ACVG survey services typically include:
- Application of AC signals
- Voltage gradient soil measurements
- Pipeline coating evaluation
- High-precision defect pinpointing
- ECDA support & direct inspection targeting
- Expert data analysis
