Identifying Leaks Through Sound Signatures
Leaks in pressurized systems generate distinct high-frequency acoustic signals as escaping fluids or gases create turbulence. Acoustic Emission (AE) leak detection leverages this phenomenon to identify leaks by "listening" for their unique sound patterns, even when they are minute, buried, or in noisy facilities.
Unlike detectors that sense the leaking substance, AE captures the sound energy produced at the leak source. Sensors mounted externally on pipelines, valves, or tank walls detect signal strength and arrival time differences to pinpoint the leak’s exact position.
BQCIS applies advanced AE systems for detecting through-wall leaks in buried pipelines, above-ground lines, and storage tanks, providing a non-intrusive, real-time diagnostic approach that enhances safety and reduces downtime.
Key AE Leak Detection Activities
Key Benefits of AE Leak Detection
Early Leak Detection
Detects small leaks at inception, preventing fluid loss, product contamination, or environmental damage.
Accurate Leak Location
Triangulates leak sources to within one meter, even on buried or insulated pipelines, minimizing excavation and repair costs.
Non-Intrusive Testing
External sensors allow continuous leak monitoring without shutdowns or internal access, preserving system integrity.
Effective in Noisy Environments
Advanced signal filtering and frequency isolation ensure accurate leak detection even amid high industrial background noise.
Success Story
AE Locates Pin-Hole Leak in Buried Pipeline Section
A buried hydrocarbon pipeline showed gradual pressure decay, suggesting a leak—but its location was uncertain along several kilometers of line.
BQCIS deployed portable AE sensors along accessible pipeline sections. Leak sound propagation and signal delays were analyzed to pinpoint the leak origin.
AE analysis identified a localized emission zone. Excavation confirmed a small pin-hole leak from corrosion. Early detection prevented significant product loss and environmental contamination.