CH492116A - Boring rod composed of several identical sections for hammer drilling deep holes - Google Patents

Boring rod composed of several identical sections for hammer drilling deep holes

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
German (de)
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/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
CH987566A 1965-07-08 1966-07-07 Boring rod composed of several identical sections for hammer drilling deep holes CH492116A (en)

Applications Claiming Priority (1)

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

Publications (1)

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

Family

ID=20275593

Family Applications (1)

Application Number Title Priority Date Filing Date
CH987566A CH492116A (en) 1965-07-08 1966-07-07 Boring rod composed of several identical sections for hammer drilling deep holes

Country Status (7)

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

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 (en) * 1996-08-21 1996-11-21 Roehrenwerk Kupferdreh Carl Ha Probing device, especially for the investigation of soil and contaminated sites
ITMI20071992A1 (en) * 2007-10-16 2009-04-17 Foxley Ventures Llc TUBE FOR ROTO-PERCUSSION

Also Published As

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

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Legal Events

Date Code Title Description
PL Patent ceased