CH492116A - Aus mehreren gleichen Teilstücken zusammengesetzte Bohrstange zum Schlagbohren von tiefen Löchern - Google Patents

Aus mehreren gleichen Teilstücken zusammengesetzte Bohrstange zum Schlagbohren von tiefen Löchern

Info

Publication number
CH492116A
CH492116A CH987566A CH987566A CH492116A CH 492116 A CH492116 A CH 492116A CH 987566 A CH987566 A CH 987566A CH 987566 A CH987566 A CH 987566A CH 492116 A CH492116 A CH 492116A
Authority
CH
Switzerland
Prior art keywords
several identical
deep holes
boring rod
identical sections
hammer drilling
Prior art date
Application number
CH987566A
Other languages
English (en)
Inventor
Anders Hjalsten John
Original Assignee
Sandco Ltd
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 Sandco Ltd filed Critical Sandco Ltd
Publication of CH492116A publication Critical patent/CH492116A/de

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
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042—Threaded
    • E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods

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)
  • Percussive Tools And Related Accessories (AREA)
CH987566A 1965-07-08 1966-07-07 Aus mehreren gleichen Teilstücken zusammengesetzte Bohrstange zum Schlagbohren von tiefen Löchern CH492116A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE900965 1965-07-08

Publications (1)

Publication Number Publication Date
CH492116A true CH492116A (de) 1970-06-15

Family

ID=20275593

Family Applications (1)

Application Number Title Priority Date Filing Date
CH987566A CH492116A (de) 1965-07-08 1966-07-07 Aus mehreren gleichen Teilstücken zusammengesetzte Bohrstange zum Schlagbohren von tiefen Löchern

Country Status (7)

Country Link
AT (1) AT269777B (de)
BE (1) BE683860A (de)
CH (1) CH492116A (de)
DE (1) DE1483863A1 (de)
DK (1) DK113561B (de)
GB (1) GB1120388A (de)
NL (1) NL6609441A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730286A (en) * 1972-06-29 1973-05-01 Exxon Production Research Co Apparatus for improving rotary drilling operations
CA1029365A (en) * 1975-03-03 1978-04-11 Lloyd B. Hansen Method and apparatus for roof drilling
GB9512250D0 (en) * 1995-06-16 1995-08-16 Boart Longyear Ltd A drill string
DE29614490U1 (de) * 1996-08-21 1996-11-21 Röhrenwerk Kupferdreh Carl Hamm GmbH, 45257 Essen Sondiervorrichtung, insbesondere zur Baugrund- und Altlastenerkundung
ITMI20071992A1 (it) * 2007-10-16 2009-04-17 Foxley Ventures Llc Tubo per roto-percussione

Also Published As

Publication number Publication date
BE683860A (de) 1966-12-16
AT269777B (de) 1969-04-10
DE1483863A1 (de) 1970-03-05
NL6609441A (de) 1967-01-09
GB1120388A (en) 1968-07-17
DK113561B (da) 1969-04-08

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Legal Events

Date Code Title Description
PL Patent ceased