Pigging and In-Line Inspection


EPCM offers a complete range of pipeline pigging services – covering both mechanical cleaning and intelligent in-line inspection ILI pigs. Our pigging solutions remove damaging debris or flow-restricting deposits, prevent corrosion cell formation, and provide data for line integrity and flow efficiency. From mandrel pigs, foam pigs, sphere pigs, solid cast pigs and gel pigs, ILI tools to temporary or permanent launching and receiving stations; we can advise, engineer and execute world-class pigging solutions. And we have done so, with many successful and safe pigging projects delivered in multiple countries.

Mechanical Pigging

During pipeline construction, pigs remove construction debris, initial acceptance testing and pre-commissioning. While during pipeline operations, batching, cleaning, condensate removal, inspection, rehabilitation and regular maintenance activities benefit from the use of an effective pigging system and regime.

In-line Inspection (ILI) Pigging

In collaboration with our formal technology partners, and the use of in-line inspection pigs, we can perform non-destructive testing (NDT) of both the interior and exterior of pipelines.

Caliper pigs, each with an array of mechanical levers mounted on the body, are used to measure the internal geometry of a pipeline. Ultrasonic ILIs are used for corrosion inspection and circumferential crack detection with unmatched accuracy.

Magnetic Flux Leakage (MFL) tools use an applied magnetic field to detect changes in wall thickness and pipe wall cracks. Geometry pigs are designed to record dents, wrinkles, bend radius and angle etc. by making measurements of the inside surface of the pipeline. Monitoring defect growth regularly reduces the risk of costly pipeline failure which may lead to system downtime, have negative environmental impacts or endanger lives. Our smart pigging solutions enable our clients to plan and schedule pipeline maintenance effectively.

Pigging Services

Some of the pigging services EPCM offers include:

  • Pig design and fabrication – body, seals, cleaning elements
  • Pig launcher/receiver design and fabrication
  • Product Supply – A variety of pigs, signallers, tracking equipment, etc.
  • Piggability studies, consulting and engineering
  • Pipeline cleaning
  • Pipeline proving and gauging;
  • In-line inspections (caliper, ultrasonic, MFL, geometry)
  • Pig detection and tracking
  • Pigging schedules and maintenance
  • Data Analysis and Reporting