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U.S. Department of Energy
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New way to protect high pressure lines

Journal Article · · Pipe Line Ind.; (United States)
OSTI ID:5559353
A system using high-density polyethylene (HDPE) pipe to reline sour-gas service has proven successful in a 15.5 mile water injection installation at Judy Creek, Alberta. Officially called the expanded liner system for high pressure service, the technique consists of pulling the HDPE liner through the steel pipe already in place and using hot water under pressure to expand the polyethylene into a snug fit. The annular space between the steel pipe and linear is evacuated of air to eliminate the possibility of vacuum collapse. With this approach, the steel provides the needed containment for high pressure systems (multiphase flow lines, gas and liquid injection lines, and gas-gathering systems) while the polyethylene protects the line from corrosive fluids.
OSTI ID:
5559353
Journal Information:
Pipe Line Ind.; (United States), Journal Name: Pipe Line Ind.; (United States) Vol. 54; ISSN PLINA
Country of Publication:
United States
Language:
English

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