IT1266855B1 - Scalpello di perforazione con struttura del dente a superficie indurita - Google Patents

Scalpello di perforazione con struttura del dente a superficie indurita

Info

Publication number
IT1266855B1
IT1266855B1 IT94TO000487A ITTO940487A IT1266855B1 IT 1266855 B1 IT1266855 B1 IT 1266855B1 IT 94TO000487 A IT94TO000487 A IT 94TO000487A IT TO940487 A ITTO940487 A IT TO940487A IT 1266855 B1 IT1266855 B1 IT 1266855B1
Authority
IT
Italy
Prior art keywords
tooth structure
hardened surface
surface tooth
drilling chisel
chisel
Prior art date
Application number
IT94TO000487A
Other languages
English (en)
Inventor
Anton F Zahradnok
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
Publication of ITTO940487A0 publication Critical patent/ITTO940487A0/it
Publication of ITTO940487A1 publication Critical patent/ITTO940487A1/it
Application granted granted Critical
Publication of IT1266855B1 publication Critical patent/IT1266855B1/it

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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type

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)
  • Drilling Tools (AREA)
IT94TO000487A 1993-06-14 1994-06-13 Scalpello di perforazione con struttura del dente a superficie indurita IT1266855B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/076,716 US5351771A (en) 1993-06-14 1993-06-14 Earth-boring bit having an improved hard-faced tooth structure

Publications (3)

Publication Number Publication Date
ITTO940487A0 ITTO940487A0 (it) 1994-06-13
ITTO940487A1 ITTO940487A1 (it) 1995-12-13
IT1266855B1 true IT1266855B1 (it) 1997-01-21

Family

ID=22133770

Family Applications (1)

Application Number Title Priority Date Filing Date
IT94TO000487A IT1266855B1 (it) 1993-06-14 1994-06-13 Scalpello di perforazione con struttura del dente a superficie indurita

Country Status (4)

Country Link
US (1) US5351771A (it)
FR (1) FR2708965A1 (it)
GB (1) GB2279094B (it)
IT (1) IT1266855B1 (it)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6547017B1 (en) 1994-09-07 2003-04-15 Smart Drilling And Completion, Inc. Rotary drill bit compensating for changes in hardness of geological formations
US5615747A (en) 1994-09-07 1997-04-01 Vail, Iii; William B. Monolithic self sharpening rotary drill bit having tungsten carbide rods cast in steel alloys
US5492186A (en) * 1994-09-30 1996-02-20 Baker Hughes Incorporated Steel tooth bit with a bi-metallic gage hardfacing
US5579856A (en) * 1995-06-05 1996-12-03 Dresser Industries, Inc. Gage surface and method for milled tooth cutting structure
US5755299A (en) 1995-08-03 1998-05-26 Dresser Industries, Inc. Hardfacing with coated diamond particles
US5813485A (en) * 1996-06-21 1998-09-29 Smith International, Inc. Cutter element adapted to withstand tensile stress
US5791423A (en) * 1996-08-02 1998-08-11 Baker Hughes Incorporated Earth-boring bit having an improved hard-faced tooth structure
US5752573A (en) * 1996-08-12 1998-05-19 Baker Hughes Incorporated Earth-boring bit having shear-cutting elements
US5921330A (en) * 1997-03-12 1999-07-13 Smith International, Inc. Rock bit with wear-and fracture-resistant hardfacing
US6029759A (en) * 1997-04-04 2000-02-29 Smith International, Inc. Hardfacing on steel tooth cutter element
US5868213A (en) * 1997-04-04 1999-02-09 Smith International, Inc. Steel tooth cutter element with gage facing knee
US5839526A (en) * 1997-04-04 1998-11-24 Smith International, Inc. Rolling cone steel tooth bit with enhancements in cutter shape and placement
US6138779A (en) 1998-01-16 2000-10-31 Dresser Industries, Inc. Hardfacing having coated ceramic particles or coated particles of other hard materials placed on a rotary cone cutter
US6170583B1 (en) 1998-01-16 2001-01-09 Dresser Industries, Inc. Inserts and compacts having coated or encrusted cubic boron nitride particles
US6102140A (en) 1998-01-16 2000-08-15 Dresser Industries, Inc. Inserts and compacts having coated or encrusted diamond particles
US6199645B1 (en) 1998-02-13 2001-03-13 Smith International, Inc. Engineered enhanced inserts for rock drilling bits
US5979575A (en) 1998-06-25 1999-11-09 Baker Hughes Incorporated Hybrid rock bit
US6206116B1 (en) 1998-07-13 2001-03-27 Dresser Industries, Inc. Rotary cone drill bit with machined cutting structure
US6206115B1 (en) 1998-08-21 2001-03-27 Baker Hughes Incorporated Steel tooth bit with extra-thick hardfacing
US6345673B1 (en) 1998-11-20 2002-02-12 Smith International, Inc. High offset bits with super-abrasive cutters
US6360832B1 (en) 2000-01-03 2002-03-26 Baker Hughes Incorporated Hardfacing with multiple grade layers
US6615936B1 (en) 2000-04-19 2003-09-09 Smith International, Inc. Method for applying hardfacing to a substrate and its application to construction of milled tooth drill bits
US6530441B1 (en) 2000-06-27 2003-03-11 Smith International, Inc. Cutting element geometry for roller cone drill bit
US7540340B2 (en) * 2002-11-04 2009-06-02 Smith International, Inc. Cutting element having enhanced cutting geometry
US8016059B2 (en) * 2007-02-09 2011-09-13 Smith International, Inc. Gage insert
WO2017100733A1 (en) 2015-12-11 2017-06-15 Smith International, Inc. Hardfacing material compositions

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2033594A (en) * 1931-09-24 1936-03-10 Stoody Co Scarifier tooth
US2058753A (en) * 1935-07-24 1936-10-27 John A Zublin Method of applying wear-resistant material to a tool
US2407642A (en) * 1945-11-23 1946-09-17 Hughes Tool Co Method of treating cutter teeth
US2660405A (en) * 1947-07-11 1953-11-24 Hughes Tool Co Cutting tool and method of making
US2911196A (en) * 1957-05-03 1959-11-03 American Coldset Corp Diamond drill bit
US3442342A (en) * 1967-07-06 1969-05-06 Hughes Tool Co Specially shaped inserts for compact rock bits,and rolling cutters and rock bits using such inserts
US4455278A (en) * 1980-12-02 1984-06-19 Skf Industrial Trading & Development Company, B.V. Method for producing an object on which an exterior layer is applied by thermal spraying and object, in particular a drill bit, obtained pursuant to this method
US4365679A (en) * 1980-12-02 1982-12-28 Skf Engineering And Research Centre, B.V. Drill bit
US4630692A (en) * 1984-07-23 1986-12-23 Cdp, Ltd. Consolidation of a drilling element from separate metallic components
US4751972A (en) * 1986-03-13 1988-06-21 Smith International, Inc. Revolving cutters for rock bits
US4781770A (en) * 1986-03-24 1988-11-01 Smith International, Inc. Process for laser hardfacing drill bit cones having hard cutter inserts
US4726432A (en) * 1987-07-13 1988-02-23 Hughes Tool Company-Usa Differentially hardfaced rock bit
US4836307A (en) * 1987-12-29 1989-06-06 Smith International, Inc. Hard facing for milled tooth rock bits
US4811801A (en) * 1988-03-16 1989-03-14 Smith International, Inc. Rock bits and inserts therefor
CA1336387C (en) * 1988-06-29 1995-07-25 Madapusi Kande Keshavan Rod for applying hard surfacing to a surface and method of making same
US5051112A (en) * 1988-06-29 1991-09-24 Smith International, Inc. Hard facing
US4969378A (en) * 1989-10-13 1990-11-13 Reed Tool Company Case hardened roller cutter for a rotary drill bit and method of making
US5152194A (en) * 1991-04-24 1992-10-06 Smith International, Inc. Hardfaced mill tooth rotary cone rock bit

Also Published As

Publication number Publication date
GB2279094B (en) 1996-06-05
FR2708965A1 (fr) 1995-02-17
ITTO940487A1 (it) 1995-12-13
GB2279094A (en) 1994-12-21
US5351771A (en) 1994-10-04
GB9411442D0 (en) 1994-07-27
ITTO940487A0 (it) 1994-06-13

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970626