WO1995013452A1 - Aleseur ameliore a rouleaux rotatifs - Google Patents

Aleseur ameliore a rouleaux rotatifs Download PDF

Info

Publication number
WO1995013452A1
WO1995013452A1 PCT/AU1994/000691 AU9400691W WO9513452A1 WO 1995013452 A1 WO1995013452 A1 WO 1995013452A1 AU 9400691 W AU9400691 W AU 9400691W WO 9513452 A1 WO9513452 A1 WO 9513452A1
Authority
WO
WIPO (PCT)
Prior art keywords
spindle
passage
roller
reamer
extending
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/AU1994/000691
Other languages
English (en)
Inventor
John Francis Kennedy
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.)
Gearhart United Pty Ltd
Original Assignee
Gearhart United Pty Ltd
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 Gearhart United Pty Ltd filed Critical Gearhart United Pty Ltd
Priority to HU9502230A priority Critical patent/HU218196B/hu
Priority to AU81346/94A priority patent/AU675186B2/en
Priority to EP95900553A priority patent/EP0678150B1/fr
Priority to DE69432786T priority patent/DE69432786T2/de
Priority to AT95900553T priority patent/ATE242417T1/de
Priority to RU95114368A priority patent/RU2105122C1/ru
Priority to CA002154285A priority patent/CA2154285C/fr
Publication of WO1995013452A1 publication Critical patent/WO1995013452A1/fr
Priority to BG99845A priority patent/BG62058B1/bg
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
    • E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
    • 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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/28—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
    • E21B10/30—Longitudinal axis roller reamers, e.g. reamer stabilisers

Definitions

  • This invention relates to a rotary roller reamer of the general type which is used in boreholes, and described and illustrated in the Applicant's earlier Australian Patent No 594885.
  • the main object of this invention is to provide a more satisfactory bearing arrangement, and this has been achieved by utilising a piston which floats freely in a cylindrical lubricant passage and lies between a bearing surface of the roller and the pressure space exterior of the roller, so that the piston will apply the same pressure to lubricant as the external pressure, thereby reducing the pressure differential and in turn retaining the lubricant in the bearing structure.
  • Fig 1 is a fragmentary view of a reamer body, showing two of three roller sets;
  • Fig 2 is a longitudinal section through Fig 1 and drawn to a slightly larger scale
  • Fig 3 is a split cross-section taken on line 3-3 of Fig 2, drawn to a still further larger scale.
  • a rotary roller reamer 10 is of the type which is used for reaming a hole cut by a drill on the end of a drill string.
  • the functions of a reamer are first to maintain a hole size when wear causes the effective diameter of a drill to reduce, and second to smooth the surface of the borehole.
  • the rotary roller reamer arrangement of this invention performs those functions.
  • the reamer 10 shown in Fig 1 contains several rollers 11 each with a plurality of tungsten carbide buttons 12 arranged circumferential ly around it.
  • the spindle 13 is retained in respect to the blocks 14 either by retainer fasteners, herein grub screws 15, and these come away with the blocks 14 when they are removed so that they can be separately removed and there is no access difficulty as with the early prior art.
  • passages 19 Running centrally part way into the spindle 13 from its ends are passages 19, shown partly in Fig 2 as being formed by the walls of an aperture extending from one end , and partly by the bore of a tube 20 extending from the other, the wall of tube 20 functioning as a heat transfer wall to reduce surface temperatures of the adjacent bearing.
  • the tube 20 is illustrated to contain a piston 21 which can conveniently be of elastomeric material, and that piston is freely slidable within the tube 20.
  • the outer end of the tube 20 opens to a "breather" aperture 22 in the reamer body, and the piston then being slidable imparts the same pressure inside the passage 19 as exists around the drill string, with very little pressure differential.
  • the interior of the roller is charged with grease through a pressure plug 27, and that grease is pressured by the piston 21 to be the same as the external pressure. It is possible to use two resilient seals, and the resilient seals 28 between spindle 13 and roller 11 are lubricated by the grease and seal it against expulsion, while the resilient seals 29 sealing between a said block 14, spindle 13 and roller 11 , and performing the primary function of reducing the ingress of abrasive material to the seals 28 and the secondary function of partly effecting a seal against ingress of moisture.
  • the spindle 13 is provided with two flats 30 connected to the passages 19 through diametral apertures 31 , and this lubrication is of great importance in the difficult environment of a bore hole, flow of grease being impelled from tube 20 to the flats 30, and thereby to the bearing surface of spindle 13, by externally supplied pressure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Massaging Devices (AREA)
  • Sliding-Contact Bearings (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Joints Allowing Movement (AREA)
  • Cleaning In General (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

Un aléseur (10) à rouleaux rotatifs, destinés à un puits de forage, comprend plusieurs rouleaux (11) dont chacun tourne autour d'un axe (13) fixe maintenu à ses extrémités dans des cales en biseau. L'axe (13) comporte deux passages (19) centraux, un à chaque extrémité. A une extrémité, le passage (19) contient un piston (21) coulissant soumis à la pression extérieure par la présence d'une prise d'air (22). Le passage (19) de l'autre extrémité est fermé par un bouchon (27) de pression qui, une fois retiré, permet l'injection de graisse dans les passages qui incluent les surfaces de paliers du rouleau (11) et de l'axe (13). La pression extérieure est appliquée à cette graisse par le piston (21), de façon qu'il n'existe que peu ou pas de différence de pression qui chasse la boue dans les paliers.
PCT/AU1994/000691 1993-11-10 1994-11-10 Aleseur ameliore a rouleaux rotatifs Ceased WO1995013452A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
HU9502230A HU218196B (hu) 1993-11-10 1994-11-10 Forgó görgős fúrólyuktágító
AU81346/94A AU675186B2 (en) 1993-11-10 1994-11-10 Improved rotary roller reamer
EP95900553A EP0678150B1 (fr) 1993-11-10 1994-11-10 Aleseur ameliore a rouleaux rotatifs
DE69432786T DE69432786T2 (de) 1993-11-10 1994-11-10 Verbesserter rotierender räumer mit rollen
AT95900553T ATE242417T1 (de) 1993-11-10 1994-11-10 Verbesserter rotierender räumer mit rollen
RU95114368A RU2105122C1 (ru) 1993-11-10 1994-11-10 Расширитель наддолотный шарошечный
CA002154285A CA2154285C (fr) 1993-11-10 1994-11-10 Aleseur ameliore a rouleaux rotatifs
BG99845A BG62058B1 (bg) 1993-11-10 1995-08-03 Ротационен ролков райбер

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPM230593 1993-11-10
AUPM2305 1993-11-10

Publications (1)

Publication Number Publication Date
WO1995013452A1 true WO1995013452A1 (fr) 1995-05-18

Family

ID=3777338

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1994/000691 Ceased WO1995013452A1 (fr) 1993-11-10 1994-11-10 Aleseur ameliore a rouleaux rotatifs

Country Status (8)

Country Link
EP (1) EP0678150B1 (fr)
AT (1) ATE242417T1 (fr)
BG (1) BG62058B1 (fr)
CA (1) CA2154285C (fr)
DE (1) DE69432786T2 (fr)
HU (1) HU218196B (fr)
RU (1) RU2105122C1 (fr)
WO (1) WO1995013452A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2360537A (en) * 2000-03-22 2001-09-26 Design Engineering Ltd Roller reaming tool with thrust bearing
WO2004042184A1 (fr) * 2002-11-07 2004-05-21 Extreme Machining Australia Pty Ltd Aleseur a rouleau rotatif ameliore
WO2008006146A1 (fr) * 2006-07-12 2008-01-17 Omni Oil Technologies Alésoir à cylindre
GB2472848A (en) * 2009-08-21 2011-02-23 Paul Bernard Lee Downhole reamer apparatus
WO2013082465A1 (fr) * 2011-11-30 2013-06-06 Smith International Inc. Rétention à coins composites d'alésoir à rouleaux

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5926293B2 (ja) * 2011-02-17 2016-05-25 ザ ロビンス カンパニー 圧力補償を有するトンネルボーリングマシンのためのカッターアセンブリ
RU2579101C1 (ru) * 2015-03-05 2016-03-27 ООО "Камышинский завод бурового инструмента" (ООО "КЗБИ") Шарошка бурового долота
RU2612171C1 (ru) * 2015-09-09 2017-03-02 Общество с ограниченной ответственностью "Камышинский завод бурового инструмента" (ООО "КЗБИ") Шарошка бурового долота

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB176048A (en) * 1920-10-25 1922-02-27 Clarence Edward Reed Improvements in or relating to well-boring drills
AU5149269A (en) * 1969-03-05 1970-09-10 Reamer-stabilizer
US3820613A (en) * 1972-12-29 1974-06-28 Western Rock Bit Co Ltd Roller reamer stabilizer
AU1859188A (en) * 1987-07-07 1989-01-12 Gearhart United Pty Ltd Rotary roller reamer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1407776A (fr) * 1964-06-24 1965-08-06 Aquitaine Petrole Perfectionnements apportés aux trépans à molettes utilisés pour le forage
CA1018511A (fr) * 1975-06-15 1977-10-04 Bralorne Resources Limited Stabilisateur a excentrique
CA1044220A (fr) * 1976-12-16 1978-12-12 Bralorne Resources Limited Stabilisateur a sous-ensembles echangeables
US4254839A (en) * 1979-06-21 1981-03-10 Dresser Industries, Inc. Radial force anti-extrusion device for sealed drill string unit
US4792000A (en) * 1986-08-04 1988-12-20 Oil Patch Group, Inc. Method and apparatus for well drilling
GB8700109D0 (en) * 1987-01-06 1987-02-11 Darron Tool & Eng Sheffield Lt Drill member

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB176048A (en) * 1920-10-25 1922-02-27 Clarence Edward Reed Improvements in or relating to well-boring drills
AU5149269A (en) * 1969-03-05 1970-09-10 Reamer-stabilizer
US3820613A (en) * 1972-12-29 1974-06-28 Western Rock Bit Co Ltd Roller reamer stabilizer
AU1859188A (en) * 1987-07-07 1989-01-12 Gearhart United Pty Ltd Rotary roller reamer

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2360537A (en) * 2000-03-22 2001-09-26 Design Engineering Ltd Roller reaming tool with thrust bearing
GB2360537B (en) * 2000-03-22 2004-01-14 Design Engineering Ltd Roller reamer with thrust bearing
WO2004042184A1 (fr) * 2002-11-07 2004-05-21 Extreme Machining Australia Pty Ltd Aleseur a rouleau rotatif ameliore
US7530409B2 (en) 2002-11-07 2009-05-12 Extreme Machining Australia Pty Ltd. Rotary roller reamer
US7793715B2 (en) 2002-11-07 2010-09-14 Extreme Machining Australia Pty Ltd. Rotary roller reamer
WO2008006146A1 (fr) * 2006-07-12 2008-01-17 Omni Oil Technologies Alésoir à cylindre
GB2472848A (en) * 2009-08-21 2011-02-23 Paul Bernard Lee Downhole reamer apparatus
WO2011021047A2 (fr) 2009-08-21 2011-02-24 Byworth, Ian, James Appareil formant roulement à rouleaux expansible pour fond de trou
US9133666B2 (en) 2009-08-21 2015-09-15 Paul Bernard Lee Expandable downhole tool apparatus
US9181755B2 (en) 2009-08-21 2015-11-10 Paul Bernard Lee Downhole expandable roller bearing apparatus
WO2013082465A1 (fr) * 2011-11-30 2013-06-06 Smith International Inc. Rétention à coins composites d'alésoir à rouleaux
US9157282B2 (en) 2011-11-30 2015-10-13 Smith International, Inc. Roller reamer compound wedge retention

Also Published As

Publication number Publication date
BG99845A (bg) 1996-04-30
HUT72293A (en) 1996-04-29
EP0678150A1 (fr) 1995-10-25
CA2154285A1 (fr) 1995-05-18
ATE242417T1 (de) 2003-06-15
BG62058B1 (bg) 1999-01-29
CA2154285C (fr) 2005-10-11
HU9502230D0 (en) 1995-09-28
HU218196B (hu) 2000-06-28
EP0678150A4 (fr) 1999-06-16
EP0678150B1 (fr) 2003-06-04
DE69432786T2 (de) 2004-05-13
DE69432786D1 (de) 2003-07-10
RU2105122C1 (ru) 1998-02-20

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