Pig Locating is the process of determining the location of a pig that has not continued to progress along the pipeline as expected or verifying that a pig is in the expected location for example a pig receiver.
Pig Tracking is used to confirm the passage of a moving pig at a particular location(s) most commonly by a team of operators using "leapfrogging."
Online’s pig locating and tracking solutions utilize two different technologies – acoustic and electromagnetic.
Acoustic pingers and receiver systems are suitable for subsea, liquid filled pipelines and allow for quick and accurate locating from long distances.
Online’s range of Electromagnetic transmitters and receivers can accurately pin-point the exact location of a stalled item. This advanced EM Pig locating system is very versatile and can be used onshore, topside or subsea with pipelines carrying liquid or gas and in trenched and pipe-in-pipe lines.