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pipeline
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Trans-Alaska Pipeline
How the world's first oil pipeline was built
How are high-pressure oil and gas pipelines made?
oil pipeline in Alaska
How the Ormen Lange gas pipeline was engineered
Ground-level view of an elevated portion of the Trans-Alaska Pipeline, Alaska, U.S. Large white tanks and pipes form a compressor station on a natural gas pipeline in Texas, with a fence in the foreground and solar panels and grassy hills in the background. Map showing oil pipelines originating from the Alberta tar sands in Canada, with routes extending south through the United States. The map uses different lines to distinguish existing pipelines, proposed Keystone XL routes (including an abandoned route through the Nebraska Sand Hills), and other proposed or existing pipelines such as Flanagan South, Seaway, and Enbridge Northern Gateway. The Alberta tar sands region is shaded in orange, and the Ogallala aquifer is marked in pink beneath parts of Central Asia's oil resererves and pipelines.
Learn about pipelines inspections by using an inspection device called PIGs
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Trans-Alaska Pipeline
Trans-Alaska Pipeline Completed in 1977, the Trans-Alaska Pipeline transports oil more than 800 miles (1,300 km), from Prudhoe Bay in northern Alaska to Valdez in the south.

pipeline

technology
Written by
Henry Liu
Professor of Civil Engineering; Director, Capsule Pipeline Research Center, University of Missouri, Columbia. Coeditor of Freight Pipelines.
Henry Liu
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Britannica Editors
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....
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History

pipeline, line of pipe equipped with pumps and valves and other control devices for moving liquids, gases, and slurries (fine particles suspended in liquid). Pipeline sizes vary from the 2-inch- (5-centimetre-) diameter lines used in oil-well gathering systems to lines 30 feet (9 metres) across in high-volume water and sewage networks. Pipelines usually consist of sections of pipe made of metal (e.g., steel, cast iron, and aluminum), though some are constructed of concrete, clay products,...

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