FR2403446A1 - Element rapporte pour outil conique de coupe d'un trepan de forage - Google Patents

Element rapporte pour outil conique de coupe d'un trepan de forage

Info

Publication number
FR2403446A1
FR2403446A1 FR7824897A FR7824897A FR2403446A1 FR 2403446 A1 FR2403446 A1 FR 2403446A1 FR 7824897 A FR7824897 A FR 7824897A FR 7824897 A FR7824897 A FR 7824897A FR 2403446 A1 FR2403446 A1 FR 2403446A1
Authority
FR
France
Prior art keywords
well
cylindrical base
dia
flat
roller 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.)
Withdrawn
Application number
FR7824897A
Other languages
English (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.)
Smith International Inc
Original Assignee
Smith International 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 Smith International Inc filed Critical Smith International Inc
Publication of FR2403446A1 publication Critical patent/FR2403446A1/fr
Withdrawn legal-status Critical Current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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts

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

L'invention concerne une pièce rapportée, destinée à être montée en saillie sur un outil de coupe d'un trépan de forage. La pièce rapportée 30 comprend une partie cylindrique 31 au moyen de laquelle elle est montée dans l'outil de coupe, et une partie en saillie 32 comprenant une base tronconique 34 à sommet arrondi 35 et une surface plate de coupe 36. L'invention concerne les outils de coupe des trépans de forage.
FR7824897A 1977-09-19 1978-08-29 Element rapporte pour outil conique de coupe d'un trepan de forage Withdrawn FR2403446A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83400977A 1977-09-19 1977-09-19

Publications (1)

Publication Number Publication Date
FR2403446A1 true FR2403446A1 (fr) 1979-04-13

Family

ID=25265866

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7824897A Withdrawn FR2403446A1 (fr) 1977-09-19 1978-08-29 Element rapporte pour outil conique de coupe d'un trepan de forage

Country Status (3)

Country Link
DE (1) DE2836474A1 (fr)
FR (1) FR2403446A1 (fr)
SE (1) SE7808550L (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8307010L (sv) * 1983-12-19 1985-06-20 Santrade Ltd Stift for slagborrande borrkrona och borrkrona derfor
SE507098C2 (sv) * 1994-10-12 1998-03-30 Sandvik Ab Stift av hårdmetall och bergborrkrona för slående borrning
CN113153164B (zh) * 2021-04-20 2024-02-23 金沙县仁德钻探工具有限公司 一种四翼平顶八齿钻头

Also Published As

Publication number Publication date
SE7808550L (sv) 1979-03-20
DE2836474A1 (de) 1979-03-29

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Legal Events

Date Code Title Description
ST Notification of lapse