ATE130396T1 - Mittel zum ablenken von schiferpartikeln für einen bohrmeissel mit versiegelten lagern. - Google Patents

Mittel zum ablenken von schiferpartikeln für einen bohrmeissel mit versiegelten lagern.

Info

Publication number
ATE130396T1
ATE130396T1 AT91115379T AT91115379T ATE130396T1 AT E130396 T1 ATE130396 T1 AT E130396T1 AT 91115379 T AT91115379 T AT 91115379T AT 91115379 T AT91115379 T AT 91115379T AT E130396 T1 ATE130396 T1 AT E130396T1
Authority
AT
Austria
Prior art keywords
drill bit
plug
sealed bearing
face
ship
Prior art date
Application number
AT91115379T
Other languages
English (en)
Inventor
Michael S Oliver
Chris E Cawthorne
Gary Erbeneck
Original Assignee
Smith International
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 Smith International filed Critical Smith International
Application granted granted Critical
Publication of ATE130396T1 publication Critical patent/ATE130396T1/de

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)
  • 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)
  • Crushing And Pulverization Processes (AREA)
AT91115379T 1990-09-17 1991-09-11 Mittel zum ablenken von schiferpartikeln für einen bohrmeissel mit versiegelten lagern. ATE130396T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/583,902 US5056610A (en) 1990-09-17 1990-09-17 Shale diverting means for a sealed bearing drill bit

Publications (1)

Publication Number Publication Date
ATE130396T1 true ATE130396T1 (de) 1995-12-15

Family

ID=24335071

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91115379T ATE130396T1 (de) 1990-09-17 1991-09-11 Mittel zum ablenken von schiferpartikeln für einen bohrmeissel mit versiegelten lagern.

Country Status (4)

Country Link
US (1) US5056610A (de)
EP (1) EP0476505B1 (de)
AT (1) ATE130396T1 (de)
DE (1) DE69114633D1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5358061A (en) * 1993-10-21 1994-10-25 Smith International, Inc. Seal protection for rock bits
US6264367B1 (en) 1995-12-19 2001-07-24 Smith International, Inc. Dual-seal drill bit with fluid cleaning capability
US5740871A (en) * 1996-05-01 1998-04-21 Dresser Industries, Inc. Flow diverter ring for a rotary drill bit and method
US6533051B1 (en) 1999-09-07 2003-03-18 Smith International, Inc. Roller cone drill bit shale diverter
WO2002088507A2 (en) * 2001-04-26 2002-11-07 Halliburton Energy Services, Inc. Roller cone bits with reduced packing
US7066287B2 (en) * 2004-02-17 2006-06-27 Baker Hughes Incorporated Mud debris diverter for earth-boring bit
US7066286B2 (en) * 2004-03-25 2006-06-27 Baker Hughes Incorporated Gage surface scraper
US7543660B2 (en) * 2006-02-21 2009-06-09 Halliburton Energy Services, Inc. Roller cone drill bit with debris diverter plugs
US8464813B2 (en) * 2006-06-20 2013-06-18 Atlas Copco Secoroc Llc Cutter assembly for a raise boring reamer
US20070289780A1 (en) * 2006-06-20 2007-12-20 Osborne Andrew J Cuttings removal wipers for cutter assemblies and method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1641261A (en) * 1927-09-06 Harold wkslock fletcher
US2260487A (en) * 1940-02-27 1941-10-28 Hughes Tool Co Fluid deflector for well drills
US2769616A (en) * 1953-02-09 1956-11-06 Hughes Tool Co Prevention of mud cutting in earth boring drills
US2960313A (en) * 1957-04-08 1960-11-15 Globe Oil Tools Co Drill bit construction having means for preventing mud-cutting
US3013621A (en) * 1958-07-08 1961-12-19 Chicago Pneumatic Tool Co Scraper for rock bit cutter
US3921735A (en) * 1975-02-27 1975-11-25 Dresser Ind Rotary rock bit with cone mouth air screen
US4359111A (en) * 1980-05-27 1982-11-16 Gonzalez Eduardo B Self compensating seal apparatus
US4515228A (en) * 1983-11-28 1985-05-07 Hughes Tool Company - Usa Air groove scraper
US4688651A (en) * 1986-03-21 1987-08-25 Dresser Industries, Inc. Cone mouth debris exclusion shield

Also Published As

Publication number Publication date
EP0476505A2 (de) 1992-03-25
DE69114633D1 (de) 1995-12-21
US5056610A (en) 1991-10-15
EP0476505A3 (en) 1992-11-19
EP0476505B1 (de) 1995-11-15

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