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Plugging pig reduces line maintenance, repair costs

Journal Article · · Pipe Line Ind.; (United States)
OSTI ID:7361104
A relatively new technique involving the use of plugging pigs to seal-off thruput on liquids lines was used by Ashland Pipe Line Co. during consecutive maintenance and repair projects on a crude trunkline in Illinois. Following completion, cost of the two operations was estimated at about two-thirds of that for similar projects using conventional line-plugging equipment. The pigs are produced by International Pipeline Equipment Co. (IPE) and are inserted into the line from the standard cleaning and batching, pig-launching equipment installed on the system. Ashland used one of the special pigs during reconditioning of a gate valve at its Patoka terminal and then pumped it downstream to seal the line at the site of a damage repair project. The service is provided by Advance Valve Installations, Inc.
OSTI ID:
7361104
Journal Information:
Pipe Line Ind.; (United States), Journal Name: Pipe Line Ind.; (United States) Vol. 44:5; ISSN PLINA
Country of Publication:
United States
Language:
English

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