Smart Pigging

The pipeline industry has, for many years, used scrubbing and scraping devices to clean the inside of their piping systems. These devices – called “pigs” – reduce build-up of waxes and other contaminants along the pipe’s interior. Sophisticated and sensitive in-line inspection (ILI) tools travel through the pipe and measure and record irregularities that may represent corrosion, cracks, laminations, deformations (dents, gouges, etc.), or other defects. Data is collected and transmitted to gauge the health of the pipeline segment being scanned. As they run inside the pipe in a manner similar to the scrubbing and scraping devices known as pigs, these in-line inspection tools are often referred to as smart pigs.