WO2008135747A3 - Pipe cutting apparatus - Google Patents

Pipe cutting apparatus Download PDF

Info

Publication number
WO2008135747A3
WO2008135747A3 PCT/GB2008/001545 GB2008001545W WO2008135747A3 WO 2008135747 A3 WO2008135747 A3 WO 2008135747A3 GB 2008001545 W GB2008001545 W GB 2008001545W WO 2008135747 A3 WO2008135747 A3 WO 2008135747A3
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
cut
pipe wall
cutting
cutting head
Prior art date
Application number
PCT/GB2008/001545
Other languages
French (fr)
Other versions
WO2008135747A2 (en
Inventor
George Silk
Original Assignee
Mirage Machines Ltd
George Silk
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 Mirage Machines Ltd, George Silk filed Critical Mirage Machines Ltd
Publication of WO2008135747A2 publication Critical patent/WO2008135747A2/en
Publication of WO2008135747A3 publication Critical patent/WO2008135747A3/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/002—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
    • E21B29/005—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe with a radially-expansible cutter rotating inside the pipe, e.g. for cutting an annular window
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D21/00—Machines or devices for shearing or cutting tubes
    • B23D21/14—Machines or devices for shearing or cutting tubes cutting inside the tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
    • B23D45/12—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade for cutting tubes
    • B23D45/128—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a circular saw blade for cutting tubes with the tool introduced into the tubes and cutting from the inside outwards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D57/00—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00
    • B23D57/0084—Sawing machines or sawing devices not covered by one of the preceding groups B23D45/00 - B23D55/00 specially adapted for sawing under water or at places accessible with difficulty

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Abstract

Apparatus for cutting through a pipe wall under water, as in decommissioning an offshore structure, has a body (16) which can be lowered down the pipe (10) and then locked in position, and a cutting head (20) at the bottom of the body with a toothed disc-like blade (52) which can be advanced radially into contact with the pipe wall and rotated about its own axis to cut through the pipe wall. The cutting head is then rotated and makes one revolution to cut right through the pipe wall to separate an upper pipe section from a lower pipe section. To keep the cut open as cutting proceeds, wedges (62) are fired into the cut around the pipe as the cutting head rotates and leaves an open cut behind it.
PCT/GB2008/001545 2007-05-03 2008-05-02 Pipe cutting apparatus WO2008135747A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0708570.7 2007-05-03
GB0708570A GB2448919A (en) 2007-05-03 2007-05-03 Cutting Apparatus

Publications (2)

Publication Number Publication Date
WO2008135747A2 WO2008135747A2 (en) 2008-11-13
WO2008135747A3 true WO2008135747A3 (en) 2009-04-23

Family

ID=38198675

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2008/001545 WO2008135747A2 (en) 2007-05-03 2008-05-02 Pipe cutting apparatus

Country Status (2)

Country Link
GB (1) GB2448919A (en)
WO (1) WO2008135747A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO332377B1 (en) 2008-04-30 2012-09-10 Beerenberg Corp As Device, unit and method for cutting pipe parts under water
CN101982276B (en) * 2010-10-25 2012-02-01 哈尔滨工程大学 Cutting machine in underwater pipeline
US20140000428A1 (en) * 2012-06-29 2014-01-02 Baker Hughes Incorporated Self-Lubricating Saw Blade Assembly with Debris Removal Paths
AU2015289775B2 (en) 2014-07-14 2018-08-09 Aarbakke Innovation A.S. Wellbore intervention tool for penetrating obstructions in a wellbore
EP2998054A1 (en) * 2014-09-19 2016-03-23 Alstom Technology Ltd Cutting device
GB201503267D0 (en) * 2015-02-26 2015-04-15 Westerton Uk Ltd Tool
GB2548104A (en) * 2016-03-07 2017-09-13 Shanghai Hengxu Mat Co Ltd Tubular cutting device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389765A (en) * 1981-05-04 1983-06-28 Crutcher Resources Corporation Piling removal
NL1002160C2 (en) * 1995-02-06 1996-09-11 Heeremac V O F Cutting method of longitudinal elements - uses two transverse cuts and one axial cut, with number of hollow sections
US5974924A (en) * 1998-03-11 1999-11-02 General Electric Canada Inc Cutting appliance for large cylindraceous objects

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5042334A (en) * 1989-10-26 1991-08-27 Nils Nygards Interior pipe cutter with safety extension

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389765A (en) * 1981-05-04 1983-06-28 Crutcher Resources Corporation Piling removal
NL1002160C2 (en) * 1995-02-06 1996-09-11 Heeremac V O F Cutting method of longitudinal elements - uses two transverse cuts and one axial cut, with number of hollow sections
US5974924A (en) * 1998-03-11 1999-11-02 General Electric Canada Inc Cutting appliance for large cylindraceous objects

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Derwent World Patents Index; AN 1996-400034, XP002490797 *

Also Published As

Publication number Publication date
WO2008135747A2 (en) 2008-11-13
GB2448919A (en) 2008-11-05
GB0708570D0 (en) 2007-06-13

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