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ATE5911T1 - Rollenbohrmeissel. - Google Patents

Rollenbohrmeissel.

Info

Publication number
ATE5911T1
ATE5911T1 AT81301218T AT81301218T ATE5911T1 AT E5911 T1 ATE5911 T1 AT E5911T1 AT 81301218 T AT81301218 T AT 81301218T AT 81301218 T AT81301218 T AT 81301218T AT E5911 T1 ATE5911 T1 AT E5911T1
Authority
AT
Austria
Prior art keywords
drill bits
bit
roller drill
cutters
rolling cone
Prior art date
Application number
AT81301218T
Other languages
English (en)
Inventor
Percy William Schumacher
Original Assignee
Reed Rock Bit Company
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 Reed Rock Bit Company filed Critical Reed Rock Bit Company
Application granted granted Critical
Publication of ATE5911T1 publication Critical patent/ATE5911T1/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
    • E21B10/46—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
    • E21B10/16—Roller bits characterised by tooth form or arrangement

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Vending Machines For Individual Products (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
AT81301218T 1980-03-24 1981-03-23 Rollenbohrmeissel. ATE5911T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13295180A 1980-03-24 1980-03-24
EP81301218A EP0038125B1 (de) 1980-03-24 1981-03-23 Rollenbohrmeissel

Publications (1)

Publication Number Publication Date
ATE5911T1 true ATE5911T1 (de) 1984-02-15

Family

ID=22456323

Family Applications (1)

Application Number Title Priority Date Filing Date
AT81301218T ATE5911T1 (de) 1980-03-24 1981-03-23 Rollenbohrmeissel.

Country Status (5)

Country Link
EP (1) EP0038125B1 (de)
AT (1) ATE5911T1 (de)
CA (1) CA1146530A (de)
DE (1) DE3161922D1 (de)
NO (1) NO810915L (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4989680A (en) * 1980-03-24 1991-02-05 Camco International Inc. Drill bit having improved hydraulic action for directing drilling fluid
US4741406A (en) * 1980-03-24 1988-05-03 Reed Tool Company Drill bit having offset roller cutters and improved nozzles
US4848476A (en) * 1980-03-24 1989-07-18 Reed Tool Company Drill bit having offset roller cutters and improved nozzles
US4784231A (en) * 1987-08-07 1988-11-15 Dresser Industries, Inc. Extended drill bit nozzle having side discharge ports

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1388456A (en) * 1921-01-29 1921-08-23 Harold W Fletcher Roller boring-drill
US2038386A (en) * 1935-03-09 1936-04-21 Hughes Tool Co Cutter for well drills
US2148372A (en) * 1936-03-21 1939-02-21 Hughes Tool Co Offset tricone bit
US3389761A (en) * 1965-12-06 1968-06-25 Dresser Ind Drill bit and inserts therefor
US3495668A (en) * 1968-07-05 1970-02-17 Murphy Ind Inc G W Drill bit
US3696876A (en) * 1971-03-15 1972-10-10 Dresser Ind Soft formation insert bits
CA1009645A (en) * 1974-07-03 1977-05-03 Stanley R. Scales Earth boring tool with improved inserts

Also Published As

Publication number Publication date
EP0038125B1 (de) 1984-01-18
EP0038125A3 (en) 1981-11-11
NO810915L (no) 1981-09-25
EP0038125A2 (de) 1981-10-21
CA1146530A (en) 1983-05-17
DE3161922D1 (en) 1984-02-23

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties