GB1224503A - Improvements in or relating to drilling apparatus - Google Patents

Improvements in or relating to drilling apparatus

Info

Publication number
GB1224503A
GB1224503A GB719268A GB719268A GB1224503A GB 1224503 A GB1224503 A GB 1224503A GB 719268 A GB719268 A GB 719268A GB 719268 A GB719268 A GB 719268A GB 1224503 A GB1224503 A GB 1224503A
Authority
GB
United Kingdom
Prior art keywords
rim
cutter
rock
bit
teeth
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
GB719268A
Inventor
Tariel Georgievic Agoshashvili
Anatoly Stephanovich Mokshin
Leonid Pavlovich Konstantinov
Jury Evgenievich Vladislavlev
Edvard Lvovich Komm
Anatoly Petrovich Okulov
Rudolf Moissevich Eigeles
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.)
INST BUROVOI TEKHNIK
Original Assignee
INST BUROVOI TEKHNIK
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 INST BUROVOI TEKHNIK filed Critical INST BUROVOI TEKHNIK
Priority to GB719268A priority Critical patent/GB1224503A/en
Publication of GB1224503A publication Critical patent/GB1224503A/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
    • E21B10/08—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)

Abstract

1,224,503. Boring earth. VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY INSTITUT BUROVOI TEKHNIKI. 14 Feb., 1968, No. 7192/68. Heading E1F. At least two of the conical cutters I to III of a drill bit 1 are designed so that one toothed rim 4 of each cutter does not slip on the rock being drilled but rather the teeth thereof bite into the rock and form an annular "rack" therein, while a toothed rim 5 of another cutter which is set at the same radius from axis of the bit as the rim 4 has a lesser cutter radius than the rim 4, with the teeth of rim 5 slipping over the rock and reducing the height of the "rack" formed by the rim 4. As shown each cutter has a rim 4 set out at different radii from the axis of the bit. The construction of ,the cutters is expressed mathematically in the Specification.
GB719268A 1968-02-14 1968-02-14 Improvements in or relating to drilling apparatus Expired GB1224503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB719268A GB1224503A (en) 1968-02-14 1968-02-14 Improvements in or relating to drilling apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB719268A GB1224503A (en) 1968-02-14 1968-02-14 Improvements in or relating to drilling apparatus

Publications (1)

Publication Number Publication Date
GB1224503A true GB1224503A (en) 1971-03-10

Family

ID=9828367

Family Applications (1)

Application Number Title Priority Date Filing Date
GB719268A Expired GB1224503A (en) 1968-02-14 1968-02-14 Improvements in or relating to drilling apparatus

Country Status (1)

Country Link
GB (1) GB1224503A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132662A (en) * 1982-12-28 1984-07-11 Sumitomo Metal Mining Co Drill bit
EP2297423A2 (en) * 2008-04-21 2011-03-23 Baker Hughes Incorporated Anti-tracking feature for rock bits

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2132662A (en) * 1982-12-28 1984-07-11 Sumitomo Metal Mining Co Drill bit
EP2297423A2 (en) * 2008-04-21 2011-03-23 Baker Hughes Incorporated Anti-tracking feature for rock bits
EP2297423A4 (en) * 2008-04-21 2013-07-03 Baker Hughes Inc Anti-tracking feature for rock bits

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