US1731553A - Apparatus for cutting openings in deep-well casings - Google Patents

Apparatus for cutting openings in deep-well casings Download PDF

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Publication number
US1731553A
US1731553A US336675A US33667529A US1731553A US 1731553 A US1731553 A US 1731553A US 336675 A US336675 A US 336675A US 33667529 A US33667529 A US 33667529A US 1731553 A US1731553 A US 1731553A
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United States
Prior art keywords
cutter
holder
housing
casing
gear wheel
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.)
Expired - Lifetime
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US336675A
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English (en)
Inventor
Godefridus Hendrikus Cl Keulen
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Individual
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Individual
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Publication date
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Publication of US1731553A publication Critical patent/US1731553A/en
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    • 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
    • E21B29/06—Cutting windows, e.g. directional window cutters for whipstock operations
    • 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
    • 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

Definitions

  • This invention relates to apparatus for cuttin apertures in, or for cutting off the casing.
  • my novel apparatus comprises a housing adapted to be lowered into a deep well casing by means of a supporting pipe and carrying a holder in which a cutter is revolubly mounted, said holder being adapted, under the inliuence of a spring or equivalent means, to
  • Said cutter is turned by a rod adapted to be lowered into the casing simultaneously with the pipe for supporting the housing through gears mounted on said rod and on the cutter, in addition to a gear Wheel rotatable about the swinging axis of the cutter holder.
  • Fig. 1 is a side elevational view of ⁇ the apparatus, suspended from a string of pipes in a deep well casing, the latter being shown in section,
  • Fig. 2 is a side elevational view of said apparatus, taken at right angles to that shown in Fig. 1 I
  • Fig. 3 is a longitudinal sectional view taken along the line III-III in Fig. 1 and drawn to an enlarged scale and l Fig. 4 is a cross sectional view along the line IV--IV in Fig. 3.
  • the substantially cylindrical housing 10 is provided in its upper portion with a hole through which passes a vertical spindle 11 adapted to be coupled to the turn rod 12, see Fig. 1.
  • Supported in bearings 14 of inwardly projecting cheeks 13 of said housing are the horizontal trunnions 15 of a holder 16 for a cutter 17 provided with a spindle portion revolubly mounted within the holder and carrying a mitre gear 18 meshing with a mitre wheel 19 'which is loosely mounted on one .of the trunnions 15 and in turn meshes withv a 60 conical wheel 20 secured to the lower end of spindle 11. It will thus be seen that swinging motion of the holder 16 about the trunnions 15 does not 'interfere with the meshing of the aforesaid three gear wheels.
  • each trunnion 15 Secured to each trunnion 15 is a grooved pulley 21 and connected to these are the ends of a rope or cord 22 passing over a loose ulley 24 loaded by a coiled spring 23. aid spring is enclosed within a sleeve 25 screwed on the housing 10 and can be tensioned by means .of a threaded rod 26.
  • Spring 23 tends to swing the cutter 17 from the position shown in Fig. 3 upwards, but owing to the presence of a lthin plate 27 screwed to the housing 10 in the path of the cutter, the latter, as long as it is not rotated, is prevented from projecting from its housing and cannot, therefore, interfere with the descending motion of the apparatus within the deep well casing 28. As soon, however, as cutter 17 is driven by rod 12, it readily cuts through plate 27 to engage the inner wall of casing 28.
  • a spring cage of known construction is provided around tube 31, said cage having for its duty to frictionally engage the inner wall of casing 28 without, however, interfering with the required vertical motions of the apparatus.
  • Said spring cage consists of two vertically spaced rings 32, 33 interconnected by three convex spring blades 34, the central portions of which are in frictional contact with the casing.
  • ring 33 Also secured to ring 33 are the lower ends of three spring blades 40 which face the inner sides of springs 34 and the free upper ends of which tend to engage the outer Vwall of tube 31 intermediate l etween rings 32, 33.
  • a third ring' 39 which encircles tube 31 intermediate between rings 32, 33, are three spring blades 37 extending in upward direc; tion and provided at their upper ends with enlarged clutches 38, which tend to engage the outer face of a conical socket 35 screwed on the upper end of tube 31 and adapted for easy rotation thereon.
  • Socket 35 is provided at its lower end witha collar 36 having three notches for receiving the springs 37 secured to ring 39.
  • rings 32, 33 and 39 are adapted for easy sliding motion over tube 31.
  • cutter 17 is put into opera- 5 tion.
  • the cutter 17 After having vertically cut throughthe thin plate 27 under the combined actions of spindle-11 and spring 23, the cutter 17 will assume a substantially horizontal position, when its holder 16 engages a face 41 of inember 10 so as to be'prevented from further upward swinging motion. Meanwhile, cutter 17 willalready have engaged the Wall of easing 28 and, casu quo, also the wall of a second casing that may surround casing 28. This depends, inter alia, upon the lengthof thecutter.
  • the cutter will follow this movement so as to eut through the casing.
  • the cutter is also displaced in vertical direction owing to the screw ⁇ connection between the rotating tube 31 and the stationary socket 35,150 that it moves along a helicoidal path and can be usedl to cut away any desired length of the casing.
  • Water may be introduced through the string of pipes 29, tube 31 and vertical passages 42 in member 10'.
  • the apparatus can again be hoisted, when the cutter 17 will slide along the inner wall of the casing 28.
  • the apparatus may be used for making holesin the wall of the casing at a smaller depth, for although plate 27 has then already been cut through, so that cutter 17 projects from its housing in a downwardly inclined position, the apparatus can-without diiiculty be lowered through a small distance y(which is necessary forl forcing the clutches Ya ratchet wheel'43 screwed thereon, care being taken thata suiiicient amount of frictional resistance is offered against rotation of wheel 43 on its screw.
  • a spring pawl 44 pivotally mounted-in the housing, cooperates with the ratchet wheel 43 in such a manner that it inoperatively glides over the ratchet wheel whenever the cutter swings upwards, but checks rotation of said wheel when the cutter, during the hoisting of the apparatus, swings downwards.-
  • the axial position of the ratchet wheel 43 on its screw threaded trunnion 15 thus indicates the number of times the cutter has been forced downwards.
  • plate 27 may be replaced by a series of superposed cross pins or by other means, provided that these can be cut through by the cutter.
  • said cutter extending crosswise of the axis of rotation of-said holder and ada ted to project from said housing, a gear W eel on said cutter, a second gear wheel rotatable about theswinging axis of said holder and 1 meshing with the first said gear wheel, and ⁇ a third -gear wheel adapted for rotation about v a vertical axis and meshing with the second said gear wheel.
  • vapparatus for cutting openings in deep Well casings the combination of a housing, a holder mounted within said housing for swinging about a horizontal axis, means tending'to impart swinging motion to said holder, a cutter rotatable Within said holder,
  • said cutter extending crosswise of the axis of rotation of said holder andadapted to project from said housing, a gear wheel on said cut' pter, a second gear wheel rotatable about the swinging axis of ⁇ said holder and meshing with the first said gear wheel, a third gear wheel adapted for rotation about a vertical axis and meshing with the second said gear wheel, steadying means vertically slidable relative to said housing, a nut member in screwed engagement with the housing, and means cooperating with said steadying means and adapted on vertical movement of said nut member relative to said steadying means to radially expand while in engagement with said nut member.
  • a housing a holder mounted within said housing for swinging about a horizontal axis, means tending to impart swinging motion to said holder, a cutter rotatable within said holder, said cutter extending crosswise of the axis of rotation of said holder and ada ted to project from said housing, a gear w eel on said cutter, a second gear Wheel rotatable 'about the swinging axis of said holder and meshing with the first said gear Wheel, a third gear wheel adapted for rotation about a vertical axis and meshing with the second said gear wheel, radially resilient and expandible vmeans vertically slidable relative to said housing, a nut member in screwed engagement with the housing, an external conical a face on said nut member, a clutch ada ted for sliding movement over said conical ace, and means coupled with said clutch and in tripping engagement with said radially resilient and expandible

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
US336675A 1928-12-28 1929-02-01 Apparatus for cutting openings in deep-well casings Expired - Lifetime US1731553A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1731553X 1928-12-28

Publications (1)

Publication Number Publication Date
US1731553A true US1731553A (en) 1929-10-15

Family

ID=19873020

Family Applications (1)

Application Number Title Priority Date Filing Date
US336675A Expired - Lifetime US1731553A (en) 1928-12-28 1929-02-01 Apparatus for cutting openings in deep-well casings

Country Status (2)

Country Link
US (1) US1731553A (no)
NL (1) NL23055C (no)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0819822A2 (en) * 1996-07-15 1998-01-21 Halliburton Energy Services, Inc. Apparatus for completing subterranean well and method of using same
WO1999064715A1 (en) * 1998-06-10 1999-12-16 Shell Internationale Research Maatschappij B.V. Downhole milling device
US20090242198A1 (en) * 2008-03-26 2009-10-01 Baker Hughes Incorporated Selectively Angled Perforating
WO2009152532A1 (en) 2008-06-14 2009-12-17 Wesley Mark Mcafee Method and apparatus for programmable robotic rotary mill cutting of multiple nested tubulars
US20100126774A1 (en) * 2008-11-26 2010-05-27 Schlumberger Technology Corporation Valve-controlled downhole motor
US20200102815A1 (en) * 2018-10-02 2020-04-02 Exacta-Frac Energy Services, Inc. Mechanical perforator with guide skates
US20200102794A1 (en) * 2018-10-02 2020-04-02 Exacta-Frac Energy Services, Inc. Mechanically perforated well casing collar
US20200109613A1 (en) * 2018-10-09 2020-04-09 Exacta-Frac Energy Services, Inc. Mechanical perforator

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0819822A3 (en) * 1996-07-15 1999-05-26 Halliburton Energy Services, Inc. Apparatus for completing subterranean well and method of using same
EP0819822A2 (en) * 1996-07-15 1998-01-21 Halliburton Energy Services, Inc. Apparatus for completing subterranean well and method of using same
WO1999064715A1 (en) * 1998-06-10 1999-12-16 Shell Internationale Research Maatschappij B.V. Downhole milling device
AU741468B2 (en) * 1998-06-10 2001-11-29 Shell Internationale Research Maatschappij B.V. Downhole milling device
US20090242198A1 (en) * 2008-03-26 2009-10-01 Baker Hughes Incorporated Selectively Angled Perforating
US8127848B2 (en) 2008-03-26 2012-03-06 Baker Hughes Incorporated Selectively angled perforating
EP2358972A1 (en) * 2008-06-14 2011-08-24 Wesley Mark Mcafee Method and apparatus for programmable robotic rotary mill cutting of multiple nested tubulars
WO2009152532A1 (en) 2008-06-14 2009-12-17 Wesley Mark Mcafee Method and apparatus for programmable robotic rotary mill cutting of multiple nested tubulars
EP2358972A4 (en) * 2008-06-14 2013-07-24 Wesley Mark Macfee PROCESS AND DEVICE FOR PROGRAMMABLE ROBOT MILLING OF MULTIPLE NESTED TUBES
GB2478248A (en) * 2008-11-26 2011-08-31 Schlumberger Holdings Valve-controlled downhole motor
WO2010061168A3 (en) * 2008-11-26 2010-10-14 Schlumberger Holdings Limited Valve-controlled downhole motor
WO2010061168A2 (en) * 2008-11-26 2010-06-03 Schlumberger Holdings Limited Valve-controlled downhole motor
US8146679B2 (en) 2008-11-26 2012-04-03 Schlumberger Technology Corporation Valve-controlled downhole motor
US20100126774A1 (en) * 2008-11-26 2010-05-27 Schlumberger Technology Corporation Valve-controlled downhole motor
GB2478248B (en) * 2008-11-26 2013-08-14 Schlumberger Holdings Valve-controlled downhole motor
US20200102815A1 (en) * 2018-10-02 2020-04-02 Exacta-Frac Energy Services, Inc. Mechanical perforator with guide skates
US20200102794A1 (en) * 2018-10-02 2020-04-02 Exacta-Frac Energy Services, Inc. Mechanically perforated well casing collar
US10822886B2 (en) * 2018-10-02 2020-11-03 Exacta-Frac Energy Services, Inc. Mechanically perforated well casing collar
US10900336B2 (en) * 2018-10-02 2021-01-26 Exacta-Frac Energy Services, Inc. Mechanical perforator with guide skates
US20200109613A1 (en) * 2018-10-09 2020-04-09 Exacta-Frac Energy Services, Inc. Mechanical perforator
US10947802B2 (en) * 2018-10-09 2021-03-16 Exacta-Frac Energy Services, Inc. Mechanical perforator

Also Published As

Publication number Publication date
NL23055C (no) 1930-05-15

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