NO995534L - Method of propelling a spike along a pipeline - Google Patents

Method of propelling a spike along a pipeline

Info

Publication number
NO995534L
NO995534L NO995534A NO995534A NO995534L NO 995534 L NO995534 L NO 995534L NO 995534 A NO995534 A NO 995534A NO 995534 A NO995534 A NO 995534A NO 995534 L NO995534 L NO 995534L
Authority
NO
Norway
Prior art keywords
pipeline
spike
pressure
distal end
propelling
Prior art date
Application number
NO995534A
Other languages
Norwegian (no)
Other versions
NO995534D0 (en
Inventor
George Charles Bruce
Original Assignee
George Charles Bruce
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 George Charles Bruce filed Critical George Charles Bruce
Publication of NO995534D0 publication Critical patent/NO995534D0/en
Publication of NO995534L publication Critical patent/NO995534L/en

Links

Classifications

    • 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
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
    • F16L55/38—Constructional aspects of the propulsion means, e.g. towed by cables driven by fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
    • B08B9/0551—Control mechanisms therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B22/00—Buoys

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Pipeline Systems (AREA)
  • Cleaning In General (AREA)

Abstract

Det er beskrevet en fremgangsmåte for fremdrift av en pigg (9) langs en luftfylt undervannsrørledning (11), omfattende de trinn å åpne et rørledningsinnløp (3) for å tillate innstramning av vann i rørledningsanordningen ved et trykk som stort sett svarer til det omgivende vanntrykk ved en proksimal ende (8) av rørledningen, og å kople et rørledningsutløp (5) ved en distal ende (6) av rørledningen til et fluidventileringssystem (10, 11, 17) i hvilket luft opprettholdes på et trykk som ligger tilstrekkelig under det omgivende vanntrykk ved rørledningens proksimale ende til å frembringe en trykkforskjell over piggen som er tilstrekkelig stor til å bringe luften i rørledningen til å ventileres fra dennes distale ende, slik at piggen drives frem langs rørledningen. Det er også beskrevet en fremgangsmåte for fremdrift av piggen langs en rørledning (1) når den er fylt av vann, ved hvilken rørledningsutløpet (5) er koplet til et fluidventileringssystem i hvilket fluid opprettholdes på et trykk som ligger tilstrekkelig under det omgivende vanntrykk ved rørledningens distale ende (6) til å bringe vann foran piggen til å ventileres fra utløpet ved rørledningens distale ende inn i fluidventileringssystemet.A method of propelling a spike (9) is described along an air-filled subsea pipeline (11), comprising the steps of opening a pipeline inlet (3) to allow entrainment of water in the pipeline device at a pressure substantially equal to ambient water pressure. at a proximal end (8) of the pipeline, and connecting a pipeline outlet (5) at a distal end (6) of the pipeline to a fluid venting system (10, 11, 17) in which air is maintained at a pressure sufficiently below ambient water pressure at the proximal end of the pipeline to produce a pressure difference across the spike sufficiently large to cause the air in the pipeline to be vented from its distal end so that the spike is propelled along the pipeline. Also disclosed is a method of propelling the spike along a pipeline (1) when filled with water, wherein the pipeline outlet (5) is coupled to a fluid venting system in which fluid is maintained at a pressure sufficiently below ambient water pressure at the pipeline. distal end (6) to bring water in front of the spike to be vented from the outlet at the distal end of the pipeline into the fluid ventilation system.

NO995534A 1997-05-15 1999-11-12 Method of propelling a spike along a pipeline NO995534L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9709864A GB2325293A (en) 1997-05-15 1997-05-15 Method for propelling a pig along a pipeline
PCT/GB1998/001389 WO1998051959A1 (en) 1997-05-15 1998-05-15 Method for propelling a pig along a pipeline

Publications (2)

Publication Number Publication Date
NO995534D0 NO995534D0 (en) 1999-11-12
NO995534L true NO995534L (en) 2000-01-06

Family

ID=10812354

Family Applications (1)

Application Number Title Priority Date Filing Date
NO995534A NO995534L (en) 1997-05-15 1999-11-12 Method of propelling a spike along a pipeline

Country Status (5)

Country Link
AU (1) AU7440498A (en)
BR (1) BR9808815A (en)
GB (2) GB2325293A (en)
NO (1) NO995534L (en)
WO (1) WO1998051959A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0123627D0 (en) * 2001-10-02 2001-11-21 Stolt Offshore Sa Installation of subsea pipelines
FR2875889B1 (en) 2004-09-30 2008-05-02 Technip France Sa INSTALLATION AND METHOD FOR DRIVING AN UNDERWATER DRIVING SCRAPER
FR3042839B1 (en) 2015-10-26 2018-05-04 Saipem S.A. METHOD FOR DRAINING AN UNDERWATER DUCT FROM FLUID TRANSPORT WHICH IS IMMERED AND FILLED WITH WATER
CN114754217B (en) * 2021-01-08 2023-10-27 中国石油天然气股份有限公司 Pipe cleaner exhausting method in water intermodal operation process

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1420049A (en) * 1973-09-11 1976-01-07 Exxon Production Research Co Recovery of marine pipelines
US3961493A (en) * 1975-01-22 1976-06-08 Brown & Root, Inc. Methods and apparatus for purging liquid from an offshore pipeline and/or scanning a pipeline interior
GB9515474D0 (en) * 1995-07-28 1995-09-27 Copipe Systems Ltd Improvements in or relating to underwater pipeline apparatus for delivering a pig unit through a sea-bed pipeline
GB9519247D0 (en) * 1995-09-21 1995-11-22 Coflexip Stena Offshore Ltd Improvements in or relating to pipeline pigging

Also Published As

Publication number Publication date
GB2340198B (en) 2001-10-24
BR9808815A (en) 2000-07-18
WO1998051959A1 (en) 1998-11-19
GB9926816D0 (en) 2000-01-12
GB9709864D0 (en) 1997-07-09
AU7440498A (en) 1998-12-08
GB2325293A (en) 1998-11-18
GB2340198A (en) 2000-02-16
NO995534D0 (en) 1999-11-12

Similar Documents

Publication Publication Date Title
NO20075356L (en) Arrangement comprising a catheter and connector, and valve for passage of a catheter
WO2004010845A3 (en) Bronchial flow control devices with membrane seal
EP1356834A3 (en) Surgical aspiration system
KR860006195A (en) Cultivator using a mixture of water and air
MY113777A (en) A method for lining a branch pipe of an underground pipe
NO20060893L (en) Laryngelmaske
DK2044921T3 (en) Exhalation valve for a mechanical ventilator
WO2005065244A3 (en) Gas delivery, evacuation and respiratory monitoring system
ES2114269T3 (en) VALVE FOR CONTROLLING THE RECIRCULATION OF THE EXHAUST GAS.
AU4732889A (en) Process and device for regulating a flow of liquid co2, and application thereof in a cooling tunnel
WO2004091283A3 (en) Fluid control system for air/liquid
NO995534L (en) Method of propelling a spike along a pipeline
NO990921L (en) Apparatus for measuring fluid flow
AU4371689A (en) A sanitary fitting
BR0306503A (en) Pressure control apparatus and method of providing the same
EP1070509A3 (en) Safety device for vacuum-assisted venous drainage
SE9102787D0 (en) OERONSPOLNINGSUTRUSTNING
WO2000027339A3 (en) Apparatus and method for cleansing tissue
SE8804581L (en) DEVICE FOR INTRAPLEURAL ANESTHESIA
EP0808804A3 (en) Distributor for introducing gas into elastic tubes
PT895020E (en) Device for introducing air into a hydropneumatic reservoir
EP0823260A3 (en) Mouth-to-mouth resuscitation device
NL9101495A (en) Member for positioning in the airways of a patient
SE9604309L (en) Pump
FR2739170B1 (en) HYDROPNEUMATIC ANTI-BELIER TANK WITH AIR INTAKE AND REGULATION DEVICE, AIR INTAKE METHOD

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application