GB2078826B - Drill bit with dispersed cutter inserts - Google Patents

Drill bit with dispersed cutter inserts

Info

Publication number
GB2078826B
GB2078826B GB8112352A GB8112352A GB2078826B GB 2078826 B GB2078826 B GB 2078826B GB 8112352 A GB8112352 A GB 8112352A GB 8112352 A GB8112352 A GB 8112352A GB 2078826 B GB2078826 B GB 2078826B
Authority
GB
United Kingdom
Prior art keywords
dispersed
drill bit
cutter inserts
cutter
inserts
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
GB8112352A
Other languages
English (en)
Other versions
GB2078826A (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.)
Hughes Tool Co
Original Assignee
Hughes Tool Co
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 Hughes Tool Co filed Critical Hughes Tool Co
Publication of GB2078826A publication Critical patent/GB2078826A/en
Application granted granted Critical
Publication of GB2078826B publication Critical patent/GB2078826B/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
    • 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)
  • 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)
  • Excavating Of Shafts Or Tunnels (AREA)
GB8112352A 1980-06-23 1981-04-21 Drill bit with dispersed cutter inserts Expired GB2078826B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16197780A 1980-06-23 1980-06-23

Publications (2)

Publication Number Publication Date
GB2078826A GB2078826A (en) 1982-01-13
GB2078826B true GB2078826B (en) 1983-12-07

Family

ID=22583644

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8112352A Expired GB2078826B (en) 1980-06-23 1981-04-21 Drill bit with dispersed cutter inserts

Country Status (8)

Country Link
JP (1) JPS5715796A (de)
AU (1) AU543784B2 (de)
CA (1) CA1154752A (de)
DE (1) DE3117268A1 (de)
GB (1) GB2078826B (de)
NO (1) NO156952C (de)
SE (1) SE448015B (de)
ZA (1) ZA812521B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29907492U1 (de) * 1999-04-29 2000-09-28 Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 41812 Erkelenz Werkzeug zum Lösen von Erdreich

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2230569A (en) * 1939-12-20 1941-02-04 Globe Oil Tools Co Roller cutter
US2774571A (en) * 1954-07-06 1956-12-18 Hughes Tool Co Cone type well drill
US3726350A (en) * 1971-05-24 1973-04-10 Hughes Tool Co Anti-tracking earth boring drill
US3871488A (en) * 1974-02-13 1975-03-18 Daniel R Sabre Rock drilling
US4187922A (en) * 1978-05-12 1980-02-12 Dresser Industries, Inc. Varied pitch rotary rock bit

Also Published As

Publication number Publication date
SE448015B (sv) 1987-01-12
AU6961581A (en) 1982-01-07
NO156952B (no) 1987-09-14
DE3117268A1 (de) 1982-04-15
NO811356L (no) 1981-12-28
ZA812521B (en) 1982-04-28
JPH0258433B2 (de) 1990-12-07
AU543784B2 (en) 1985-05-02
GB2078826A (en) 1982-01-13
CA1154752A (en) 1983-10-04
SE8102397L (sv) 1981-12-24
JPS5715796A (en) 1982-01-27
NO156952C (no) 1987-12-23
DE3117268C2 (de) 1991-06-06

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20010420