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WO1997011326A1 - Procede et dispositif pour refrigerer de gros tuyaux - Google Patents

Procede et dispositif pour refrigerer de gros tuyaux Download PDF

Info

Publication number
WO1997011326A1
WO1997011326A1 PCT/US1995/011879 US9511879W WO9711326A1 WO 1997011326 A1 WO1997011326 A1 WO 1997011326A1 US 9511879 W US9511879 W US 9511879W WO 9711326 A1 WO9711326 A1 WO 9711326A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
jacket
refrigeration unit
subsea
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1995/011879
Other languages
English (en)
Inventor
Stuart D. Clouston
Paul S. Goodwin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nowsco Well Service Ltd
Nowscow Uk Ltd
Nowsco Well Service Inc
Original Assignee
Nowsco Well Service Ltd
Nowscow Uk Ltd
Nowsco Well Service Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nowsco Well Service Ltd, Nowscow Uk Ltd, Nowsco Well Service Inc filed Critical Nowsco Well Service Ltd
Priority to US08/646,372 priority Critical patent/US5836167A/en
Priority to GB9612428A priority patent/GB2307735B/en
Priority to PCT/US1995/011879 priority patent/WO1997011326A1/fr
Publication of WO1997011326A1 publication Critical patent/WO1997011326A1/fr
Priority to NO980966A priority patent/NO308968B1/no
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow in pipes or hoses
    • F16L55/103—Means for stopping flow in pipes or hoses by temporarily freezing liquid sections in the pipe
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/02—Subcoolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D15/00—Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/13—Economisers

Definitions

  • cryogenic fluid tanks themselves were located on the surface vessel, with insulated hoses used to pump the "cooling medium” from the vessel to a jacket located around the subsea pipe. Hoses also returned the cooling medium to the surface. "Consumed” cryogenic fluid was released to the atmosphere.
  • the "cooling medium” comprised either the cryogen itself or a secondary coolant working fluid that was circulated through a heat exchanger on the vessel in cooling contact with the cryogen.
  • the present invention further teaches (3) using the encircling pipe jacket itself for the evaporation chamber of the refrigeration unit.
  • Such design enhances cooling efficiency and distribution without sacrificing temperature control.
  • Such design eliminates the inefficiency and complications associated with use of secondary "working" fluids in order to perform a "controlled temperature” freeze.
  • the large pipe is anticipated to comprise pipe of outside diameter between 10 and 50 inches.
  • the jacket has a length of at least one and one half times the pipe outside diameter and defines within it a baffled interior fluid passageway.
  • a control unit can be employed to operate and monitor the deployed refrigerator system.
  • a data logging system may also record all instrumentation data throughout the whole operation.
  • the control unit may also operate, optionally, as a "closed-loop" system where no operator input is required to control the cool down or the maintenance of the pipe during freeze.
  • Software control could not only, for example, in conjunction with the refrigeration unit of the present design, maintain the pipewall at a specified temperature but could also monitor various parameters within the operating unit to allow automatic control of housing environment temperature and refrigerant sub-cooling.
  • the refrigerator would in most cases be located off the pipe (see Fig. 6) .
  • the refrigeration unit of the present design is sufficiently compact and mobile as to be allowed to be placed proximate the pipe to be frozen in even those locations where space is scarce, such as in plants and offshore platforms and on vessels.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)

Abstract

Procédé et dispositif pour réfrigérer de gros tuyaux, notamment des applications sous-marines. Le dispositif comprend une chemise (14) conçue pour entourer une partie d'un gros tuyau (P), une unité de réfrigération de recyclage reliée à ladite chemise, celle-ci faisant office de chambre d'évaporation et, pour les applications sous-marines, une enceinte submersible (11) contenant une partie de ladite unité de réfrigération. Le procédé comprend la descente d'une unité submersible de réfrigération à recyclage au-dessus ou près d'un tuyau (P) et le recyclage, de préférence le recyclage inversé, d'un réfrigérant dans celle-ci.
PCT/US1995/011879 1995-09-18 1995-09-18 Procede et dispositif pour refrigerer de gros tuyaux Ceased WO1997011326A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US08/646,372 US5836167A (en) 1995-09-18 1995-09-18 Method and apparatus for freezing large pipe
GB9612428A GB2307735B (en) 1995-09-18 1995-09-18 Method and apparatus for freezing large pipe
PCT/US1995/011879 WO1997011326A1 (fr) 1995-09-18 1995-09-18 Procede et dispositif pour refrigerer de gros tuyaux
NO980966A NO308968B1 (no) 1995-09-18 1998-03-06 Bærbart apparat og fremgangsmÕte for frysing av en plugg for et stort rør

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1995/011879 WO1997011326A1 (fr) 1995-09-18 1995-09-18 Procede et dispositif pour refrigerer de gros tuyaux

Publications (1)

Publication Number Publication Date
WO1997011326A1 true WO1997011326A1 (fr) 1997-03-27

Family

ID=22249794

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/011879 Ceased WO1997011326A1 (fr) 1995-09-18 1995-09-18 Procede et dispositif pour refrigerer de gros tuyaux

Country Status (2)

Country Link
GB (1) GB2307735B (fr)
WO (1) WO1997011326A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011159355A3 (fr) * 2010-06-15 2012-08-16 Biofilm Ip, Llc Procédés, dispositifs, systèmes pour l'extraction d'énergie thermique d'un conduit métallique conducteur de la chaleur
CN105371534A (zh) * 2014-08-11 2016-03-02 斯贝利公司 管道冷冻机系统
US9605789B2 (en) 2013-09-13 2017-03-28 Biofilm Ip, Llc Magneto-cryogenic valves, systems and methods for modulating flow in a conduit
US9677714B2 (en) 2011-12-16 2017-06-13 Biofilm Ip, Llc Cryogenic injection compositions, systems and methods for cryogenically modulating flow in a conduit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483082A (en) * 1944-12-18 1949-09-27 Freez Seal Equipment Company L Repairing water pipes and equipment for use therein
US4267699A (en) * 1979-02-21 1981-05-19 Bahrenburg Harry H Freeze isolation seal
US4309875A (en) * 1979-05-14 1982-01-12 Gerald M. D'Agostino Pipe freezer or the like
US4416118A (en) * 1981-12-21 1983-11-22 Brister Beryle D Method and apparatus for controlling the formation of a temporary plug in a fluid transmission line
US4441328A (en) * 1981-12-08 1984-04-10 Brister, Incorporated Method and apparatus for forming a temporary plug in a submarine conduit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3477417D1 (en) * 1983-08-02 1989-04-27 Ronald Hallett Pipe freezing device
GB2195738A (en) * 1986-10-06 1988-04-13 Shell Int Research Method of isolating a portion of a pipeline
US5548965A (en) * 1995-05-31 1996-08-27 Spectronics Corporation Multi-cavity evaporator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483082A (en) * 1944-12-18 1949-09-27 Freez Seal Equipment Company L Repairing water pipes and equipment for use therein
US4267699A (en) * 1979-02-21 1981-05-19 Bahrenburg Harry H Freeze isolation seal
US4309875A (en) * 1979-05-14 1982-01-12 Gerald M. D'Agostino Pipe freezer or the like
US4441328A (en) * 1981-12-08 1984-04-10 Brister, Incorporated Method and apparatus for forming a temporary plug in a submarine conduit
US4416118A (en) * 1981-12-21 1983-11-22 Brister Beryle D Method and apparatus for controlling the formation of a temporary plug in a fluid transmission line

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011159355A3 (fr) * 2010-06-15 2012-08-16 Biofilm Ip, Llc Procédés, dispositifs, systèmes pour l'extraction d'énergie thermique d'un conduit métallique conducteur de la chaleur
CN103238019A (zh) * 2010-06-15 2013-08-07 生物膜Ip有限责任公司 从导热金属管道撤出热能的方法、装置和系统
US9010132B2 (en) 2010-06-15 2015-04-21 Biofilm Ip, Llc Methods, devices and systems for extraction of thermal energy from a heat conducting metal conduit
US9528780B2 (en) 2010-06-15 2016-12-27 Biofilm Ip, Llc Methods, devices and systems for extraction of thermal energy from a heat conducting metal conduit
EA026872B1 (ru) * 2010-06-15 2017-05-31 Байофилм Ип, Ллц Способы, устройства и системы для получения тепловой энергии из теплопроводящего металлического трубопровода
US9677714B2 (en) 2011-12-16 2017-06-13 Biofilm Ip, Llc Cryogenic injection compositions, systems and methods for cryogenically modulating flow in a conduit
US9605789B2 (en) 2013-09-13 2017-03-28 Biofilm Ip, Llc Magneto-cryogenic valves, systems and methods for modulating flow in a conduit
CN105371534A (zh) * 2014-08-11 2016-03-02 斯贝利公司 管道冷冻机系统
CN105371534B (zh) * 2014-08-11 2018-07-03 斯贝利公司 管道冷冻机系统

Also Published As

Publication number Publication date
GB2307735B (en) 1999-03-31
GB9612428D0 (en) 1996-08-28
GB2307735A (en) 1997-06-04

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