ATE170950T1 - CUTTING DEVICE FOR PIPES - Google Patents

CUTTING DEVICE FOR PIPES

Info

Publication number
ATE170950T1
ATE170950T1 AT95922631T AT95922631T ATE170950T1 AT E170950 T1 ATE170950 T1 AT E170950T1 AT 95922631 T AT95922631 T AT 95922631T AT 95922631 T AT95922631 T AT 95922631T AT E170950 T1 ATE170950 T1 AT E170950T1
Authority
AT
Austria
Prior art keywords
knives
storage position
biasing
biasing means
operating means
Prior art date
Application number
AT95922631T
Other languages
German (de)
Inventor
Bruce Mcgarian
Brian Tulloch
Original Assignee
Red Baron Oil Tools Rental
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 Red Baron Oil Tools Rental filed Critical Red Baron Oil Tools Rental
Application granted granted Critical
Publication of ATE170950T1 publication Critical patent/ATE170950T1/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

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Knives (AREA)
  • Drilling Tools (AREA)
  • Surgical Instruments (AREA)
  • Drilling And Boring (AREA)
  • Earth Drilling (AREA)

Abstract

A pipe cutter (1) suitable for cutting the casing of a well bore, comprises a body (2) having a plurality of knives (4) pivotally mounted thereon and each rotatable between a storage position (as shown) in which the knives do not extend radially outwardly of the body and a use position in which the knives extend radially outwardly of the body to engage a pipe to be cut. Operating means (6A) are selectively operable to move the knives from the storage position to the use position. Biasing means (9, 11) are provided for biasing the knives into the storage position whereby when said operating means is not in use the blades adopt the storage position under the influence of the biasing means. The operating means and biasing means permit fluid circulation through the tool. Means (16A) are provided for holding the biasing means out of contact with the knives to facilitate knife removal.
AT95922631T 1994-06-21 1995-06-21 CUTTING DEVICE FOR PIPES ATE170950T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9412408A GB9412408D0 (en) 1994-06-21 1994-06-21 Pipe cutter

Publications (1)

Publication Number Publication Date
ATE170950T1 true ATE170950T1 (en) 1998-09-15

Family

ID=10757063

Family Applications (1)

Application Number Title Priority Date Filing Date
AT95922631T ATE170950T1 (en) 1994-06-21 1995-06-21 CUTTING DEVICE FOR PIPES

Country Status (6)

Country Link
EP (1) EP0765428B1 (en)
AT (1) ATE170950T1 (en)
AU (1) AU2745995A (en)
DE (1) DE69504669D1 (en)
GB (1) GB9412408D0 (en)
WO (1) WO1995035429A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010065994A1 (en) * 2008-12-08 2010-06-17 Well Ops Sea Pty Ltd Subsea severing of stringer casings
US8602101B2 (en) * 2011-01-21 2013-12-10 Smith International, Inc. Multi-cycle pipe cutter and related methods
US9353589B2 (en) 2011-01-21 2016-05-31 Smith International, Inc. Multi-cycle pipe cutter and related methods
US11719089B2 (en) 2020-07-15 2023-08-08 Saudi Arabian Oil Company Analysis of drilling slurry solids by image processing
US11506044B2 (en) 2020-07-23 2022-11-22 Saudi Arabian Oil Company Automatic analysis of drill string dynamics
US11396789B2 (en) 2020-07-28 2022-07-26 Saudi Arabian Oil Company Isolating a wellbore with a wellbore isolation system
US11492862B2 (en) 2020-09-02 2022-11-08 Saudi Arabian Oil Company Cutting pipes in wellbores using downhole autonomous cutting tools
US11867008B2 (en) 2020-11-05 2024-01-09 Saudi Arabian Oil Company System and methods for the measurement of drilling mud flow in real-time
US11434714B2 (en) 2021-01-04 2022-09-06 Saudi Arabian Oil Company Adjustable seal for sealing a fluid flow at a wellhead
US11697991B2 (en) 2021-01-13 2023-07-11 Saudi Arabian Oil Company Rig sensor testing and calibration
US11572752B2 (en) 2021-02-24 2023-02-07 Saudi Arabian Oil Company Downhole cable deployment
US11727555B2 (en) 2021-02-25 2023-08-15 Saudi Arabian Oil Company Rig power system efficiency optimization through image processing
US11846151B2 (en) 2021-03-09 2023-12-19 Saudi Arabian Oil Company Repairing a cased wellbore
US11624265B1 (en) 2021-11-12 2023-04-11 Saudi Arabian Oil Company Cutting pipes in wellbores using downhole autonomous jet cutting tools
US11867012B2 (en) 2021-12-06 2024-01-09 Saudi Arabian Oil Company Gauge cutter and sampler apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2108330A (en) * 1935-12-02 1938-02-15 James T Ellis Pipe cutter
US2246711A (en) * 1939-11-16 1941-06-24 George J Barrett Cutting tool
US2299528A (en) * 1941-09-22 1942-10-20 Ray E Conner Casing mill
US2640537A (en) * 1950-11-27 1953-06-02 Frances Robertha Edwards Inside pipe cutter
US2709490A (en) * 1951-09-28 1955-05-31 A 1 Bit & Tool Company Inc Tool for severing and milling away a section of casing in the bore of a well
US2899000A (en) * 1957-08-05 1959-08-11 Houston Oil Field Mat Co Inc Piston actuated casing mill
US3073389A (en) * 1959-02-24 1963-01-15 Thelma L Conner Pipe cutter and milling tool

Also Published As

Publication number Publication date
GB9412408D0 (en) 1994-08-10
EP0765428B1 (en) 1998-09-09
DE69504669D1 (en) 1998-10-15
EP0765428A1 (en) 1997-04-02
AU2745995A (en) 1996-01-15
WO1995035429A1 (en) 1995-12-28

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Legal Events

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