NO921207L - Borkrone med beskyttet forsegling - Google Patents

Borkrone med beskyttet forsegling

Info

Publication number
NO921207L
NO921207L NO92921207A NO921207A NO921207L NO 921207 L NO921207 L NO 921207L NO 92921207 A NO92921207 A NO 92921207A NO 921207 A NO921207 A NO 921207A NO 921207 L NO921207 L NO 921207L
Authority
NO
Norway
Prior art keywords
drill core
protected seal
protected
seal
drill
Prior art date
Application number
NO92921207A
Other languages
English (en)
Other versions
NO921207D0 (no
Inventor
James R Hall
Cary A Maurstad
Original Assignee
Hughes Tool Co
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 Hughes Tool Co filed Critical Hughes Tool Co
Publication of NO921207D0 publication Critical patent/NO921207D0/no
Publication of NO921207L publication Critical patent/NO921207L/no

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3436—Pressing means
    • F16J15/3456—Pressing means without external means for pressing the ring against the face, e.g. slip-ring with a resilient lip

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Sealing Devices (AREA)
NO92921207A 1991-05-31 1992-03-27 Borkrone med beskyttet forsegling NO921207L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/708,854 US5129471A (en) 1991-05-31 1991-05-31 Earth boring bit with protected seal means

Publications (2)

Publication Number Publication Date
NO921207D0 NO921207D0 (no) 1992-03-27
NO921207L true NO921207L (no) 1992-12-01

Family

ID=24847428

Family Applications (1)

Application Number Title Priority Date Filing Date
NO92921207A NO921207L (no) 1991-05-31 1992-03-27 Borkrone med beskyttet forsegling

Country Status (4)

Country Link
US (1) US5129471A (no)
EP (1) EP0515780B1 (no)
DE (1) DE69215002T2 (no)
NO (1) NO921207L (no)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5524718A (en) * 1995-01-31 1996-06-11 Baker Hughes Incorporated Earth-boring bit with improved bearing seal assembly
EP1632643B1 (en) 1995-02-16 2011-06-01 Baker Hughes Incorporated Method and apparatus for monitoring and recording of operating conditions of a downhole drill bit during drilling operations
US5655611A (en) * 1995-08-04 1997-08-12 Baker Hughes Inc. Earth-boring bit with improved bearing seal
US6336512B1 (en) * 1999-02-02 2002-01-08 Smith International, Inc. Drill bit having canted seal
US6279671B1 (en) * 1999-03-01 2001-08-28 Amiya K. Panigrahi Roller cone bit with improved seal gland design
FR2791390B1 (fr) 1999-03-26 2001-06-29 Hutchinson Tete de forage presentant un trepan a cones
US7036613B2 (en) 2003-09-12 2006-05-02 Reedhycalog, L.P. Lip seal for roller cone drill bit
US20060065445A1 (en) * 2004-09-28 2006-03-30 Smith International, Inc. Rock-bit seals with asymmetric contact profiles
US8100196B2 (en) * 2005-06-07 2012-01-24 Baker Hughes Incorporated Method and apparatus for collecting drill bit performance data
US7604072B2 (en) * 2005-06-07 2009-10-20 Baker Hughes Incorporated Method and apparatus for collecting drill bit performance data
US8376065B2 (en) * 2005-06-07 2013-02-19 Baker Hughes Incorporated Monitoring drilling performance in a sub-based unit
US7849934B2 (en) * 2005-06-07 2010-12-14 Baker Hughes Incorporated Method and apparatus for collecting drill bit performance data
DE102007038604A1 (de) * 2007-08-16 2009-02-26 Ab Skf Lager
US7721827B2 (en) * 2007-08-17 2010-05-25 Varel International Ind., L.P. Rock bit having a seal gland with a conical sealing surface
US7982459B2 (en) * 2008-06-30 2011-07-19 Eaton Corporation Hydraulic cylinder rod position sensing method
US8746374B2 (en) * 2011-01-28 2014-06-10 Varel International Ind., L.P. Method and apparatus for reducing lubricant pressure pulsation within a rotary cone rock bit
CN104937209B (zh) * 2012-12-31 2017-04-26 哈利伯顿能源服务公司 对称高纵横比密封件
US10689912B1 (en) 2019-12-12 2020-06-23 PDB Tools, Inc. Sealed bearing rock bit with a low profile seal

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
SE454527B (sv) * 1984-01-03 1988-05-09 Santrade Ltd Tetningsanordning vid rullborrkrona
US4641976A (en) * 1984-02-09 1987-02-10 Smith International, Inc. Copper-based spinodal alloy bearings
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

Also Published As

Publication number Publication date
DE69215002D1 (de) 1996-12-12
EP0515780B1 (en) 1996-11-06
US5129471A (en) 1992-07-14
NO921207D0 (no) 1992-03-27
EP0515780A1 (en) 1992-12-02
DE69215002T2 (de) 1997-03-06

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