GB1405900A - Earth drilling tools - Google Patents

Earth drilling tools

Info

Publication number
GB1405900A
GB1405900A GB4252972A GB4252972A GB1405900A GB 1405900 A GB1405900 A GB 1405900A GB 4252972 A GB4252972 A GB 4252972A GB 4252972 A GB4252972 A GB 4252972A GB 1405900 A GB1405900 A GB 1405900A
Authority
GB
United Kingdom
Prior art keywords
protuberance
earth drilling
drilling tools
sept
earth
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
GB4252972A
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.)
Total Compagnie Francaise des Petroles SA
Original Assignee
Compagnie Francaise des Petroles SA
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 Compagnie Francaise des Petroles SA filed Critical Compagnie Francaise des Petroles SA
Publication of GB1405900A publication Critical patent/GB1405900A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Sliding-Contact Bearings (AREA)
  • Drilling Tools (AREA)
GB4252972A 1971-09-13 1972-09-13 Earth drilling tools Expired GB1405900A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7132896A FR2152409B2 (enExample) 1971-09-13 1971-09-13

Publications (1)

Publication Number Publication Date
GB1405900A true GB1405900A (en) 1975-09-10

Family

ID=9082832

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4252972A Expired GB1405900A (en) 1971-09-13 1972-09-13 Earth drilling tools

Country Status (6)

Country Link
AR (1) AR195969A1 (enExample)
BE (1) BE785611R (enExample)
ES (1) ES396978A2 (enExample)
FR (1) FR2152409B2 (enExample)
GB (1) GB1405900A (enExample)
IT (1) IT998063B (enExample)

Also Published As

Publication number Publication date
FR2152409A2 (enExample) 1973-04-27
IT998063B (it) 1976-01-20
ES396978A2 (es) 1974-10-01
FR2152409B2 (enExample) 1974-05-31
BE785611R (fr) 1972-10-16
AR195969A1 (es) 1973-11-23

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]