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The wire brush encircles the shaft and scours the interior of the pipeline. A scraper pig shown at the Trans-Alaska Pipeline System Visitors Center. 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 ...
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 ...
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).
In October 2013, the company carried out the longest nonstop inspection run until that time in the Nord Stream Pipeline (1,224 km). [14] Hermann Rosen has managed the corporate group [15] since its inception. Only for the time period from the beginning of 2013 to the end of 2014, Friedrich Hecker acted as CEO. [16]
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.
Smart" pigs, which contain a variety of sensors, can perform multiple tasks. [165] Typically, these pigs are inserted at Prudhoe Bay and travel the length of the pipeline. In July 2009, a pig launcher was installed at Pump Station 8, near the midpoint of the pipeline. [165] A third type of common maintenance is the installation and replacement ...