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WO2008073873A3 - Joint de bit de terre magnétique - Google Patents

Joint de bit de terre magnétique Download PDF

Info

Publication number
WO2008073873A3
WO2008073873A3 PCT/US2007/086937 US2007086937W WO2008073873A3 WO 2008073873 A3 WO2008073873 A3 WO 2008073873A3 US 2007086937 W US2007086937 W US 2007086937W WO 2008073873 A3 WO2008073873 A3 WO 2008073873A3
Authority
WO
WIPO (PCT)
Prior art keywords
earth bit
bit seal
lug
cone
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.)
Ceased
Application number
PCT/US2007/086937
Other languages
English (en)
Other versions
WO2008073873A2 (fr
Inventor
Gregory W Peterson
Jim W Langford
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.)
Epiroc Drilling Tools LLC
Original Assignee
Atlas Copco Secoroc LLC
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 Atlas Copco Secoroc LLC filed Critical Atlas Copco Secoroc LLC
Publication of WO2008073873A2 publication Critical patent/WO2008073873A2/fr
Publication of WO2008073873A3 publication Critical patent/WO2008073873A3/fr
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

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)
  • Sealing Devices (AREA)

Abstract

L'invention concerne un joint de bit de terre qui comprend un anneau magnétique déterminant la force avec laquelle le joint de bit de terre vient en prise avec une saillie et/ou un cône d'un bit de terre. Le joint de bit de terre comprend également un anneau flexible positionné à distance de toute surface de scellage dynamique qui met en prise la saillie ou le cône. L'anneau flexible est positionné à distance des surfaces de scellage dynamique de sorte que, s'il est imprégné de débris, il n'agit pas comme un anneau abrasif qui élimine de manière non souhaitable le matériau de celle-ci, ou de la saillie et du cône.
PCT/US2007/086937 2006-12-11 2007-12-10 Joint de bit de terre magnétique Ceased WO2008073873A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US86949406P 2006-12-11 2006-12-11
US60/869,494 2006-12-11
US11/952,736 2007-12-07
US11/952,736 US20080179103A1 (en) 2006-12-11 2007-12-07 Magnetic earth bit seal

Publications (2)

Publication Number Publication Date
WO2008073873A2 WO2008073873A2 (fr) 2008-06-19
WO2008073873A3 true WO2008073873A3 (fr) 2008-08-14

Family

ID=39512425

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/086937 Ceased WO2008073873A2 (fr) 2006-12-11 2007-12-10 Joint de bit de terre magnétique

Country Status (2)

Country Link
US (1) US20080179103A1 (fr)
WO (1) WO2008073873A2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7735583B2 (en) * 2007-11-21 2010-06-15 Baker Hughes Incorporated Roller cone bit bearing with elastomeric seal having self break-in property and method
US8353369B2 (en) 2008-08-06 2013-01-15 Atlas Copco Secoroc, LLC Percussion assisted rotary earth bit and method of operating the same
US20100102513A1 (en) * 2008-10-23 2010-04-29 Atlas Copco Secoroc Llc Seal assembly for a rotary earth bit
US8844656B2 (en) * 2009-03-16 2014-09-30 Atlas Copco Secoroc Llc Seal assembly for a rotary earth bit
US9091130B2 (en) 2013-02-13 2015-07-28 Varel International, Ind., L.P. Rock bit having a radially self-aligning metal faced seal
US9163458B2 (en) * 2013-02-13 2015-10-20 Varel International, Ind., L.P. Rock bit having a flexible metal faced seal
US9163459B2 (en) * 2013-02-13 2015-10-20 Varel International, Ind., L.P. Rock bit having a pressure balanced metal faced seal
CN107620571B (zh) * 2017-11-03 2019-01-01 西南石油大学 一种套管损坏井修复用长寿命复合钻头

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4762189A (en) * 1987-05-28 1988-08-09 Tatum David M Seal and seal shield assembly for rotary drill bits
US20070045008A1 (en) * 2005-08-26 2007-03-01 Baker Hughes Incorporated Magnetic face seal for rock drill bit bearings

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2815967A (en) * 1954-05-24 1957-12-10 Crane Packing Co Rotary mechanical seal and method of assembling the same
US3128104A (en) * 1961-12-15 1964-04-07 Teske Fritz Magnetic labyrinth-type seal for shafts
US4434863A (en) * 1979-05-14 1984-03-06 Smith International, Inc. Drill string splined resilient tubular telescopic joint for balanced load drilling of deep holes
US4294492A (en) * 1979-11-19 1981-10-13 Evans Robert F Caliper seal assembly
US4344629A (en) * 1980-10-14 1982-08-17 Smith International, Inc. Self-lapping high speed seal with wear-in lip
US4822057A (en) * 1988-03-31 1989-04-18 Smith International, Inc. Mechanical face seal for rock bits
US5015001A (en) * 1990-07-23 1991-05-14 Mather Seal Company Low friction seal assembly
US5137097A (en) * 1990-10-30 1992-08-11 Modular Engineering Modular drill bit
US5441282A (en) * 1993-05-03 1995-08-15 Ciotola; Alfredo A. Mechanical seal
US5458420A (en) * 1993-12-10 1995-10-17 The Timken Company Bearing seal with encoder
GB9402216D0 (en) * 1994-02-04 1994-03-30 Bp Exploration Operating Drilling bit assembly and apparatus
US5553870A (en) * 1994-02-16 1996-09-10 The Timken Company Lip seal separating oil and grease
US5842701A (en) * 1996-10-08 1998-12-01 Smith International, Inc. Dual functioning seal for rock bits
FR2791390B1 (fr) * 1999-03-26 2001-06-29 Hutchinson Tete de forage presentant un trepan a cones
IT1318196B1 (it) * 2000-07-19 2003-07-28 Rft Spa Complesso di tenuta per due organi reciprocamente rotanti, inparticolare i due anelli di un cuscinetto a rotolamento
US7121555B2 (en) * 2001-03-22 2006-10-17 Komatsu Ltd. Seal assembly and crawler-track connection structure
US7117961B2 (en) * 2003-07-31 2006-10-10 Smith International, Inc. Dynamic seal with soft interface

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4762189A (en) * 1987-05-28 1988-08-09 Tatum David M Seal and seal shield assembly for rotary drill bits
US20070045008A1 (en) * 2005-08-26 2007-03-01 Baker Hughes Incorporated Magnetic face seal for rock drill bit bearings

Also Published As

Publication number Publication date
US20080179103A1 (en) 2008-07-31
WO2008073873A2 (fr) 2008-06-19

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