DE69628509D1 - Bohrmeissel mit verbesserter Lagerdichtung - Google Patents

Bohrmeissel mit verbesserter Lagerdichtung

Info

Publication number
DE69628509D1
DE69628509D1 DE69628509T DE69628509T DE69628509D1 DE 69628509 D1 DE69628509 D1 DE 69628509D1 DE 69628509 T DE69628509 T DE 69628509T DE 69628509 T DE69628509 T DE 69628509T DE 69628509 D1 DE69628509 D1 DE 69628509D1
Authority
DE
Germany
Prior art keywords
drill bit
bearing seal
improved bearing
improved
seal
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
Application number
DE69628509T
Other languages
English (en)
Inventor
George E Dolezal
Thomas M Harris
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.)
Baker Hughes Holdings LLC
Original Assignee
Baker Hughes Inc
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 Baker Hughes Inc filed Critical Baker Hughes Inc
Application granted granted Critical
Publication of DE69628509D1 publication Critical patent/DE69628509D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E21B10/25—Roller bits characterised by bearing, lubrication or sealing details characterised by sealing details

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Sealing Devices (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
DE69628509T 1995-08-04 1996-08-02 Bohrmeissel mit verbesserter Lagerdichtung Expired - Lifetime DE69628509D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/511,509 US5655611A (en) 1995-08-04 1995-08-04 Earth-boring bit with improved bearing seal

Publications (1)

Publication Number Publication Date
DE69628509D1 true DE69628509D1 (de) 2003-07-10

Family

ID=24035204

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69628509T Expired - Lifetime DE69628509D1 (de) 1995-08-04 1996-08-02 Bohrmeissel mit verbesserter Lagerdichtung

Country Status (3)

Country Link
US (1) US5655611A (de)
EP (1) EP0757154B1 (de)
DE (1) DE69628509D1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6279671B1 (en) * 1999-03-01 2001-08-28 Amiya K. Panigrahi Roller cone bit with improved seal gland design
US6450271B1 (en) 2000-07-21 2002-09-17 Baker Hughes Incorporated Surface modifications for rotary drill bits
US6769500B2 (en) 2001-08-31 2004-08-03 Halliburton Energy Services, Inc. Optimized earth boring seal means
US6837317B2 (en) * 2001-11-16 2005-01-04 Varel International, Ltd. Bearing seal
US7036613B2 (en) * 2003-09-12 2006-05-02 Reedhycalog, L.P. Lip seal for roller cone drill bit
US7721827B2 (en) * 2007-08-17 2010-05-25 Varel International Ind., L.P. Rock bit having a seal gland with a conical sealing surface
US20110024198A1 (en) * 2008-02-19 2011-02-03 Baker Hughes Incorporated Bearing systems containing diamond enhanced materials and downhole applications for same
US8967301B2 (en) 2010-02-03 2015-03-03 Baker Hughes Incorporated Composite metallic elastomeric sealing components for roller cone drill bits
US8834026B2 (en) * 2010-10-01 2014-09-16 Baker Hughes Incorporated Bearings for downhole tools, downhole tools incorporating such bearings, and methods of cooling such bearings
US10260560B2 (en) * 2013-12-04 2019-04-16 Us Synthetic Corporation Compact bearing assemblies including superhard bearing surfaces, bearing apparatuses, and methods of use
US10689912B1 (en) 2019-12-12 2020-06-23 PDB Tools, Inc. Sealed bearing rock bit with a low profile seal

Family Cites Families (19)

* 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
US3449024A (en) * 1965-03-08 1969-06-10 Dresser Ind Seal arrangement between relatively rotatable members
US3397928A (en) * 1965-11-08 1968-08-20 Edward M. Galle Seal means for drill bit bearings
US3765495A (en) * 1972-08-02 1973-10-16 G W Murphey Ind Inc Drill bit seals
US4014595A (en) * 1975-05-30 1977-03-29 Hughes Tool Company Drill bit with seal ring compensator
US4209890A (en) * 1979-01-19 1980-07-01 Dresser Industries, Inc. Method of making a rotary rock bit with seal recess washer
SE8002882L (sv) * 1980-04-17 1981-10-18 Sandvik Ab Bergborrkrona
US4428687A (en) * 1981-05-11 1984-01-31 Hughes Tool Company Floating seal for earth boring bit
US4372624A (en) * 1981-06-04 1983-02-08 Smith International, Inc. Dynamic O-ring seal
US4516641A (en) * 1983-10-17 1985-05-14 Hughes Tool Company-Usa Earth boring bit with pressure compensating rigid face seal
US4753303A (en) * 1983-10-17 1988-06-28 Hughes Tool Company--USA Earth boring bit with two piece bearing and rigid face seal assembly
SE454527B (sv) * 1984-01-03 1988-05-09 Santrade Ltd Tetningsanordning vid rullborrkrona
US4623028A (en) * 1985-09-16 1986-11-18 Reed Tool Company Seal assembly for drill bits
US4727942A (en) * 1986-11-05 1988-03-01 Hughes Tool Company Compensator for earth boring bits
US4753304A (en) * 1987-03-09 1988-06-28 Hughes Tool Company Volume and pressure balanced rigid face seal for rock bits
US4923020A (en) * 1988-06-23 1990-05-08 Hughes Tool Company Rock bit with rigid face seals and recessed energizers
US4955440A (en) * 1989-07-19 1990-09-11 Intevep, S.A. Rotary drill bits with plural sealing systems
US5129471A (en) * 1991-05-31 1992-07-14 Hughes Tool Company Earth boring bit with protected seal means
RU2055142C1 (ru) * 1993-10-11 1996-02-27 Акционерное общество закрытого типа "Спецстройсервис" Буровое шарошечное долото

Also Published As

Publication number Publication date
EP0757154B1 (de) 2003-06-04
EP0757154A2 (de) 1997-02-05
US5655611A (en) 1997-08-12
EP0757154A3 (de) 1998-07-08

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Legal Events

Date Code Title Description
8332 No legal effect for de