CA974976A - Stabilizing roller - Google Patents

Stabilizing roller

Info

Publication number
CA974976A
CA974976A CA183,286A CA183286A CA974976A CA 974976 A CA974976 A CA 974976A CA 183286 A CA183286 A CA 183286A CA 974976 A CA974976 A CA 974976A
Authority
CA
Canada
Prior art keywords
stabilizing roller
stabilizing
roller
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
Application number
CA183,286A
Inventor
Robert D. Goodfellow
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.)
Kennametal Inc
Original Assignee
Kennametal 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 Kennametal Inc filed Critical Kennametal Inc
Application granted granted Critical
Publication of CA974976A publication Critical patent/CA974976A/en
Expired 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve
    • 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
    • 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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/28—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
    • E21B10/30—Longitudinal axis roller reamers, e.g. reamer stabilisers
    • 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
    • E21B10/52—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-type inserts
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
CA183,286A 1972-11-21 1973-10-12 Stabilizing roller Expired CA974976A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US30841172A 1972-11-21 1972-11-21

Publications (1)

Publication Number Publication Date
CA974976A true CA974976A (en) 1975-09-23

Family

ID=23193887

Family Applications (1)

Application Number Title Priority Date Filing Date
CA183,286A Expired CA974976A (en) 1972-11-21 1973-10-12 Stabilizing roller

Country Status (2)

Country Link
US (1) US3797592A (en)
CA (1) CA974976A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142598A (en) * 1977-05-23 1979-03-06 Smith International, Inc. Two stage large diameter drill bit
US4316515A (en) * 1979-05-29 1982-02-23 Hughes Tool Company Shaft drill bit with improved cutter bearing and seal arrangement and cutter insert arrangement
US4301876A (en) * 1979-08-24 1981-11-24 Smith International, Inc. Non-rotating stabilizer for raise boring
USRE34167E (en) * 1985-10-11 1993-01-26 Santrade Limited Drill bit and roller cutter for said drill bit
SE459436B (en) * 1985-10-11 1989-07-03 Sandvik Ab DRILL HEAD AND CUTTING ROLL INTENDED TO USE THIS
GB2203774A (en) * 1987-04-21 1988-10-26 Cledisc Int Bv Rotary drilling device
CA2283847C (en) 1997-03-11 2007-12-11 Weatherford U.S., L.P. Friction reducing tool
GB2331534B (en) 1998-02-23 2000-01-19 Weatherford Lamb Centralizer
WO1999045229A1 (en) 1998-03-05 1999-09-10 Weatherford U.S, L.P. An axle, a friction reducing fitting and an axle installation method
AU760978B2 (en) 1999-01-22 2003-05-29 Weatherford Technology Holdings, Llc Friction reducing tool and method for its use in a wellbore

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3216513A (en) * 1964-01-06 1965-11-09 Robbins & Assoc James S Cutter assemblies for rock drilling
US3303900A (en) * 1964-05-25 1967-02-14 Drilco Oil Tools Inc Bore control device
US3659660A (en) * 1970-04-10 1972-05-02 Dresser Ind Large diameter bit for shallow angle holes
US3752243A (en) * 1971-09-20 1973-08-14 Durametallic Corp Roller cutter assembly with improved bearing seal ring

Also Published As

Publication number Publication date
US3797592A (en) 1974-03-19

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