FR2198048A1 - Drill bit roller cutter - with circumferential chisel-shaped webs having cutting inserts - Google Patents

Drill bit roller cutter - with circumferential chisel-shaped webs having cutting inserts

Info

Publication number
FR2198048A1
FR2198048A1 FR7231083A FR7231083A FR2198048A1 FR 2198048 A1 FR2198048 A1 FR 2198048A1 FR 7231083 A FR7231083 A FR 7231083A FR 7231083 A FR7231083 A FR 7231083A FR 2198048 A1 FR2198048 A1 FR 2198048A1
Authority
FR
France
Prior art keywords
chisel
web
circumferential
roller cutter
drill bit
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.)
Granted
Application number
FR7231083A
Other languages
French (fr)
Other versions
FR2198048B1 (en
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.)
GW Murphy Industries Inc
Original Assignee
GW Murphy Industries 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 GW Murphy Industries Inc filed Critical GW Murphy Industries Inc
Priority to FR7231083A priority Critical patent/FR2198048A1/en
Publication of FR2198048A1 publication Critical patent/FR2198048A1/en
Application granted granted Critical
Publication of FR2198048B1 publication Critical patent/FR2198048B1/fr
Granted 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
    • E21B10/46—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
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/10—Roller bits with roller axle supported at both ends
    • 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

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)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

A roller cutter including a body contains >=1 substantially chisel-shaped circumferential web extending outwardly from the body, and several hardened wear-resistant inserts, one end of which is substantially chisel-shaped, positioned in the web and the body so that the cross-sectional shape of the web and the inserts have substantially the same included angle, the combination of the web and the inserts presenting a relatively continuous chisel-shaped surface to the formation whereby on rotation of the body the chisel-shaped surface cuts >=1 circular kerf in the formation. Cutter is capable of drilling large dia. holes in hard formations.
FR7231083A 1972-09-01 1972-09-01 Drill bit roller cutter - with circumferential chisel-shaped webs having cutting inserts Granted FR2198048A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7231083A FR2198048A1 (en) 1972-09-01 1972-09-01 Drill bit roller cutter - with circumferential chisel-shaped webs having cutting inserts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7231083A FR2198048A1 (en) 1972-09-01 1972-09-01 Drill bit roller cutter - with circumferential chisel-shaped webs having cutting inserts

Publications (2)

Publication Number Publication Date
FR2198048A1 true FR2198048A1 (en) 1974-03-29
FR2198048B1 FR2198048B1 (en) 1976-05-21

Family

ID=9103779

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7231083A Granted FR2198048A1 (en) 1972-09-01 1972-09-01 Drill bit roller cutter - with circumferential chisel-shaped webs having cutting inserts

Country Status (1)

Country Link
FR (1) FR2198048A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538441A1 (en) * 1982-12-28 1984-06-29 Sumitomo Metal Mining Co DRILL BIT WITH WHEELS

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1241797A (en) * 1959-08-10 1960-09-23 Materiel De Forage Soc De Fab Wheel for drilling tool
US3411380A (en) * 1965-07-24 1968-11-19 Daimler Benz Ag Means for increasing the endurance limit of highly stressed structural parts, especially of crank shafts for motor vehicles
US3679009A (en) * 1971-02-02 1972-07-25 Kennametal Inc Rotary cutter for excavation, especially for use with raise boring and tunnel boring machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1241797A (en) * 1959-08-10 1960-09-23 Materiel De Forage Soc De Fab Wheel for drilling tool
US3411380A (en) * 1965-07-24 1968-11-19 Daimler Benz Ag Means for increasing the endurance limit of highly stressed structural parts, especially of crank shafts for motor vehicles
US3679009A (en) * 1971-02-02 1972-07-25 Kennametal Inc Rotary cutter for excavation, especially for use with raise boring and tunnel boring machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538441A1 (en) * 1982-12-28 1984-06-29 Sumitomo Metal Mining Co DRILL BIT WITH WHEELS

Also Published As

Publication number Publication date
FR2198048B1 (en) 1976-05-21

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Legal Events

Date Code Title Description
ST Notification of lapse