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2. Pigging - Wikipedia

   en.wikipedia.org/wiki/Pigging

   In pipeline transportation, pigging is the practice of using pipeline inspection gauges or gadgets, devices generally referred to as pigs or scrapers, to perform various maintenance operations. This is done without stopping the flow of the product in the pipeline.

3. Robotic non-destructive testing - Wikipedia

   en.wikipedia.org/wiki/Robotic_Non-Destructive...

   Robotic non-destructive testing (NDT) is a method of inspection used to assess the structural integrity of petroleum, natural gas, and water installations. Crawler-based robotic tools are commonly used for in-line inspection (ILI) applications in pipelines that cannot be inspected using traditional intelligent pigging tools (or unpiggable pipelines).

4. Magnetic flux leakage - Wikipedia

   en.wikipedia.org/wiki/Magnetic_flux_leakage

   An MFL tool is known as an "intelligent" or "smart" inspection pig because it contains electronics and collects data real-time while traveling through the pipeline. Sophisticated electronics on board allow this tool to accurately detect anomalies as small as 1 mm 2 , which can include dimensions of a pipeline wall as well as its depth and ...

5. Hydraulically activated pipeline pigging - Wikipedia

   en.wikipedia.org/wiki/Hydraulically_Activated...

   Hydraulically activated pipeline pigging (HAPP) is a pigging technology applied for pipeline cleaning. The basic principle is that a pressure drop is created over a by-passable pig held back against a pipeline's fluid flow. The pipeline fluid passing through the pig's cleaning head is accelerated by this pressure drop, forming strong cleaning jets.

6. Corrosion engineering - Wikipedia

   en.wikipedia.org/wiki/Corrosion_engineering

   Thus special instruments for internal corrosion control and inspection are used that are not used in external corrosion control. Video scoping of pipes and high tech smart pigs are used for internal inspections. The smart pigs can be inserted into a pipe system at one point and "caught" far down the line.

7. Glossary of oilfield jargon - Wikipedia

   en.wikipedia.org/wiki/Glossary_of_oilfield_jargon

   Smart pig: An inline inspection tool inserted into a pipeline for defect inspection. Spud date: When drilling a new well, the spud date is the day on which the main drill bit begins drilling. For onshore drilling, spudding-in occurs after a wellsite has been prepared and a larger surface hole drilled and cased in preparation for the main drill ...