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Title:
INSULATION OF PIPE-IN-PIPE SYSTEMS
Document Type and Number:
WIPO Patent Application WO/2019/123008
Kind Code:
A3
Abstract:
A pipe-in-pipe section (10) comprises an inner pipe (12) spaced within an outer pipe (14) to define an annulus (16) between the inner and outer pipes. The annulus contains a solid insulating material (18), which may be a microporous aerogel, and an inert gas such as krypton at near-atmospheric pressure.

Inventors:
LODEHO OLIVIER (FR)
WEGNER ALEXIS (FR)
Application Number:
PCT/IB2018/001562
Publication Date:
November 14, 2019
Filing Date:
December 17, 2018
Export Citation:
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Assignee:
ACERGY FRANCE SAS (FR)
International Classes:
F16L59/14; E21B17/01; E21B36/00; E21B43/01; F16L9/18; F16L59/07
Domestic Patent References:
WO1995000797A11995-01-05
Foreign References:
US20110197987A12011-08-18
US7441602B22008-10-28
US20090301596A12009-12-10
CN204476300U2015-07-15
Attorney, Agent or Firm:
CUMMINGS, Sean Patrick (GB)
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