DE2214021A1 - - Google Patents

Info

Publication number
DE2214021A1
DE2214021A1 DE19722214021 DE2214021A DE2214021A1 DE 2214021 A1 DE2214021 A1 DE 2214021A1 DE 19722214021 DE19722214021 DE 19722214021 DE 2214021 A DE2214021 A DE 2214021A DE 2214021 A1 DE2214021 A1 DE 2214021A1
Authority
DE
Germany
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.)
Granted
Application number
DE19722214021
Other languages
German (de)
Other versions
DE2214021B1 (de
DE2214021C2 (de
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 filed Critical
Priority to DE2214021A priority Critical patent/DE2214021C2/de
Publication of DE2214021B1 publication Critical patent/DE2214021B1/de
Publication of DE2214021A1 publication Critical patent/DE2214021A1/de
Application granted granted Critical
Publication of DE2214021C2 publication Critical patent/DE2214021C2/de
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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/22—Rods or pipes with helical structure
    • 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
    • E21B10/02—Core bits

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)
  • Sampling And Sample Adjustment (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
DE2214021A 1972-03-23 1972-03-23 Werkzeuge zum Ausbohren von Erd kernen Expired DE2214021C2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2214021A DE2214021C2 (de) 1972-03-23 1972-03-23 Werkzeuge zum Ausbohren von Erd kernen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2214021A DE2214021C2 (de) 1972-03-23 1972-03-23 Werkzeuge zum Ausbohren von Erd kernen

Publications (3)

Publication Number Publication Date
DE2214021B1 DE2214021B1 (de) 1973-03-01
DE2214021A1 true DE2214021A1 (cs) 1973-03-01
DE2214021C2 DE2214021C2 (de) 1973-09-20

Family

ID=5839826

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2214021A Expired DE2214021C2 (de) 1972-03-23 1972-03-23 Werkzeuge zum Ausbohren von Erd kernen

Country Status (1)

Country Link
DE (1) DE2214021C2 (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3822249A1 (de) * 1988-07-01 1990-01-04 Hilti Ag Hohlbohrwerkzeug

Also Published As

Publication number Publication date
DE2214021B1 (de) 1973-03-01
DE2214021C2 (de) 1973-09-20

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Legal Events

Date Code Title Description
B1 Publication of the examined application without previous publication of unexamined application
C2 Grant after previous publication (2nd publication)