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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 ...
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.
The most recent was the 2010 San Bruno pipeline explosion that killed at least four people, injured 60 and more victims are still missing. [19] Portions of the San Bruno pipeline had been built in 1956. In ideal situations, pipeline inspection gauges or a “PIG” (see Pigging) is used to inspect and ensure the safe operation of natural gas ...
Enterprise Products Partners L.P. (NYSE: EPD) is an American midstream natural gas and crude oil pipeline company with headquarters in Houston, Texas. [6] It acquired GulfTerra in September 2004. The company ranked No. 105 in the 2018 Fortune 500 list of the largest United States corporations by total revenue. [7]
Ice pigging is a technique used for cleaning pipes, distinguished from traditional pigging by the use of a semi-solid 'pig' made of ice, rather than a solid object. This ice pig is capable of flowing through pipes, navigating obstructions such as valves and variations in pipe diameter, due to its fluid-like properties.
A teenage hunter allegedly shot dead his parents and younger brother before taking his own life in a horrifying murder-suicide. Clifford Hunt Jr., 19, is believed to have shot parents Michelle, 48 ...