EP0274265A3 - Roller reamer assembly - Google Patents

Roller reamer assembly Download PDF

Info

Publication number
EP0274265A3
EP0274265A3 EP87311264A EP87311264A EP0274265A3 EP 0274265 A3 EP0274265 A3 EP 0274265A3 EP 87311264 A EP87311264 A EP 87311264A EP 87311264 A EP87311264 A EP 87311264A EP 0274265 A3 EP0274265 A3 EP 0274265A3
Authority
EP
European Patent Office
Prior art keywords
spindle
cutter
roller
tubular
rotary
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.)
Withdrawn
Application number
EP87311264A
Other languages
German (de)
French (fr)
Other versions
EP0274265A2 (en
Inventor
Ian George Boyington
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.)
Darron Tool & Engineering (sheffield) Ltd
Original Assignee
Darron Tool & Engineering (sheffield) 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 Darron Tool & Engineering (sheffield) Ltd filed Critical Darron Tool & Engineering (sheffield) Ltd
Publication of EP0274265A2 publication Critical patent/EP0274265A2/en
Publication of EP0274265A3 publication Critical patent/EP0274265A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B10/246—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details with pumping means for feeding lubricant

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)
  • Auxiliary Devices For Machine Tools (AREA)

Abstract

The invention relates to a drill member and particularly to a so called roller reamer. Roller reamers are known to form part of a drill string whereby to maintain the gauge of a hole during drilling, and known to comprise a number of roller cutters each mounted on the spindle and located in equal spaced relationship around a carrier body. Ordinarily the spindle is mounted in bearing blocks themselves located on a carrier body, and it is known to pack grease around the spindle to minimise wear between the roller cutter and the spindle during use. In use it is known for damage to be occasioned to the bearing box and equally during long usage there can be a loss of lubricant/grease from between the roller cutter and the spindle. The object of the invention is to provide an improved cutter assembly for a roller reamer which objective is met by a construction comprising a cutter assembly for a roller reamer comprising a tubular spindle bearing blocks secured to the ends of the spindle and a rotary cutter rotatably mounted on the spindle characterised by rotary seals 11 between the cutter 9 and the spindle 4 at each end of the cutter, a spring loaded piston 12 mounted within the tubular spindle 4, a passageway 16 through one bearing member 5 communicating with the interior of the tubular spindle 4, valve or nipple means 17 closing the inlet to the passageway 16 and at least one outlet hole 18 through the wall of the spindle 4 communicating with at least one groove 19 extending along the outer face of the spindle 4 over substantially the length of the spindle 4 lying within the rotary cutter 9.
EP87311264A 1987-01-06 1987-12-21 Roller reamer assembly Withdrawn EP0274265A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878700109A GB8700109D0 (en) 1987-01-06 1987-01-06 Drill member
GB8700109 1987-01-06

Publications (2)

Publication Number Publication Date
EP0274265A2 EP0274265A2 (en) 1988-07-13
EP0274265A3 true EP0274265A3 (en) 1989-09-06

Family

ID=10610272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87311264A Withdrawn EP0274265A3 (en) 1987-01-06 1987-12-21 Roller reamer assembly

Country Status (4)

Country Link
EP (1) EP0274265A3 (en)
DK (1) DK1788A (en)
GB (1) GB8700109D0 (en)
NO (1) NO880017L (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU594885C (en) * 1987-07-07 2004-10-07 Gearhart United Pty Ltd Rotary roller reamer
WO1995013452A1 (en) * 1993-11-10 1995-05-18 Gearhart United Pty. Ltd. Improved rotary roller reamer
AU701439B2 (en) * 1995-03-20 1999-01-28 Gearhart United Pty Ltd Bi-directional roller reamer
AUPN183295A0 (en) * 1995-03-20 1995-04-13 Gearhart United Pty Ltd Bi-directional roller reamer
AUPP946199A0 (en) * 1999-03-26 1999-04-22 Gearhart Australia Limited Reaming stabilizer roller
CA2720411C (en) 2002-11-07 2013-08-13 Extreme Machining Australia Pty Ltd An improved rotary roller reamer
CA2523767A1 (en) * 2003-05-07 2004-11-18 Extreme Machining Australia Pty Ltd Stabilising band for a roller assembly
AU2004236273B2 (en) * 2003-05-07 2010-12-02 Extreme Machining Australia Pty Ltd Stabilising band for a roller assembly
US20080202818A1 (en) * 2003-09-03 2008-08-28 Gearhart United Pty Ltd. Rotary Roller Reamer
AU2004269049B2 (en) * 2003-09-03 2009-06-18 Gearhart United Pty Ltd Rotary roller reamer
AU2010307012A1 (en) * 2009-10-12 2012-05-03 Atlas Copco Secoroc Llc Downhole tool
US9157282B2 (en) 2011-11-30 2015-10-13 Smith International, Inc. Roller reamer compound wedge retention
US10718165B2 (en) * 2017-11-30 2020-07-21 Duane Shotwell Roller reamer integral pressure relief assembly

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1565788A (en) * 1925-01-26 1925-12-15 Anthony E Carlson Reamer
FR1438748A (en) * 1965-06-22 1966-05-13 Improvements to drill bits
US3251634A (en) * 1963-07-01 1966-05-17 Exxon Production Research Co Drill bit bearing lubricator
US3907048A (en) * 1974-05-13 1975-09-23 Bralorne Resources Ltd Air cleaned and lubricated stabilizer
GB2053319A (en) * 1979-06-21 1981-02-04 Dresser Ind Earth boring apparatus
GB2138870A (en) * 1980-08-01 1984-10-31 Oncar Corp A roller-reamer unit for roller-reamer apparatus
US4508184A (en) * 1983-05-27 1985-04-02 Hansen Michael S Roller reamer/stabilizer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1565788A (en) * 1925-01-26 1925-12-15 Anthony E Carlson Reamer
US3251634A (en) * 1963-07-01 1966-05-17 Exxon Production Research Co Drill bit bearing lubricator
FR1438748A (en) * 1965-06-22 1966-05-13 Improvements to drill bits
US3907048A (en) * 1974-05-13 1975-09-23 Bralorne Resources Ltd Air cleaned and lubricated stabilizer
GB2053319A (en) * 1979-06-21 1981-02-04 Dresser Ind Earth boring apparatus
GB2138870A (en) * 1980-08-01 1984-10-31 Oncar Corp A roller-reamer unit for roller-reamer apparatus
US4508184A (en) * 1983-05-27 1985-04-02 Hansen Michael S Roller reamer/stabilizer

Also Published As

Publication number Publication date
DK1788A (en) 1988-07-07
NO880017D0 (en) 1988-01-05
EP0274265A2 (en) 1988-07-13
DK1788D0 (en) 1988-01-05
GB8700109D0 (en) 1987-02-11
NO880017L (en) 1988-07-07

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