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1. WO2000040886 - HEAT INSULATING DEVICE AND METHOD FOR INSULATING AT LEAST A SUBMARINE PIPELINE AT GREAT DEPTH

Publication Number WO/2000/040886
Publication Date 13.07.2000
International Application No. PCT/FR1999/003322
International Filing Date 30.12.1999
IPC
E21B 17/01 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings
01Risers
E21B 36/00 2006.01
EFIXED CONSTRUCTIONS
21EARTH OR ROCK DRILLING; MINING
BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
36Heating, cooling, or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
F16L 53/00 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
53Heating of pipes or pipe systems; Cooling of pipes or pipe systems
F16L 59/14 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
59Thermal insulation in general
14Arrangements for the insulation of pipes or pipe systems
CPC
E21B 17/01
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
17Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods ; ; Cables; Casings; Tubings
01Risers
E21B 36/003
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
36Heating, cooling, insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
003Insulating arrangements
E21B 43/01
EFIXED CONSTRUCTIONS
21EARTH DRILLING; MINING
BEARTH DRILLING, e.g. DEEP DRILLING
43Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
01specially adapted for obtaining from underwater installations
F16L 1/16
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
1Laying or reclaiming pipes; Repairing or joining pipes on or under water
12Laying or reclaiming pipes on or under water
16on the bottom
F16L 53/38
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
53Heating of pipes or pipe systems; Cooling of pipes or pipe systems
30Heating of pipes or pipe systems
35Ohmic-resistance heating
38using elongate electric heating elements, e.g. wires or ribbons
F16L 59/14
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
59Thermal insulation in general
14Arrangements for the insulation of pipes or pipe systems
Applicants
  • BOUYGUES OFFSHORE [FR/FR]; 3, rue Stephenson Montigny-le-Bretonneux F-78884 Saint Quentin en Yvelines, FR (AllExceptUS)
  • BAYLOT, Michel [FR/FR]; FR (UsOnly)
  • HALLOT, Raymond [FR/FR]; FR (UsOnly)
  • PIONETTI, Régis [FR/FR]; FR (UsOnly)
  • ROCHER, Xavier [FR/FR]; FR (UsOnly)
Inventors
  • BAYLOT, Michel; FR
  • HALLOT, Raymond; FR
  • PIONETTI, Régis; FR
  • ROCHER, Xavier; FR
Agents
  • DOMANGE, Maxime; Cabinet Beau de Loménie 232, avenue du Prado F-13295 Marseille Cedex 08, FR
Priority Data
98/1679131.12.1998FR
99/0098526.01.1999FR
Publication Language French (FR)
Filing Language French (FR)
Designated States
Title
(EN) HEAT INSULATING DEVICE AND METHOD FOR INSULATING AT LEAST A SUBMARINE PIPELINE AT GREAT DEPTH
(FR) DISPOSITIF ET PROCEDE THERMIQUE D'ISOLATION D'AU MOINS UNE CONDUITE SOUS-MARINE A GRANDE PROFONDEUR
Abstract
(EN)
The invention concerns a heat insulating device for at least a submarine pipeline (1) designed to be laid on the seafloor at great depth, comprising an insulating coating enclosing it and protective sheath. The invention is characterised in that said insulating coating comprising a quasi-incompressible material (4) with liquid-solid phase change at a melting temperature T0 higher than that T2 of the medium around the pipeline (1) when it is in operation and lower than that T1 of the effluents circulating in the pipeline, and said material (4) being preferably impregnated in an absorbent matrix (2) enclosing the pipeline (1), preferably closest to its outer surface, which protective sheath (3) is resistant and deformable, and ensures confinement against and around said insulating coating.
(FR)
La présente invention a pour objet un dispositif d'isolation thermique d'au moins une conduite sous-marine (1) destinée à être posée sur le fond à grande profondeur, comportant une revêtement isolant entourant celle-ci et une enveloppe de protection (3), caractérisé en ce que ledit revêtement isolant comprenant un matériau quasi incompressible (4) à changement de phase liquide-solide à une température de fusion T0 supérieure à celle T2 du milieu environnant la conduite (1) en opération et inférieure à celle T1 des effluents circulant dans la conduite, et ledit matériau (4) étant de préférence imprégné dans une matrice absorbante (2) entourant la conduite (1), de préférence au plus près de sa surface extérieure, laquelle enveloppe de protection (3) est résistante et déformable et assure un confinement contre et autour dudit revêtement isolant.
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