TERMIUM Plus®

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PIPE-IN-PIPE-IN-PIPE [1 record]

Record 1 2011-12-14

English

Subject field(s)
  • Transport of Oil and Natural Gas
  • Long-Distance Pipelines
CONT

Transfer subsea LNG [liquefied natural gas] and LPG [liquefied petroleum gas]. - This unit promotes and markets the use of subsea export/import cryogenic lines (pipe-in-pipe-in-pipe or pipe-in-pipe) for the transfer of LNG/LPG which allows a significant reduction of civil engineering cost and visual impact by doing away with terminal jetties and related civil works.

OBS

Typical subsea cryogenic pipeline designs consist of two coaxial pipes, or Pipe-in-Pipe (PiP) concept. Some designs add a secondary containment (third pipe) to create the so called Pipe-in-Pipe-in-Pipe (PiPiP) concept. The inner pipe transports the cryogenic fluid, the annular space provides the necessary insulation properties and the outer pipe(s) offers protection from the external environment (pressure, corrosion, impacts).

French

Domaine(s)
  • Transport du pétrole et du gaz naturel
  • Canalisations à grande distance
OBS

Par analogie avec «conduite à double enveloppe» et «pipeline à double enveloppe».

Spanish

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