ZA943831B - Drill steel - Google Patents

Drill steel

Info

Publication number
ZA943831B
ZA943831B ZA943831A ZA943831A ZA943831B ZA 943831 B ZA943831 B ZA 943831B ZA 943831 A ZA943831 A ZA 943831A ZA 943831 A ZA943831 A ZA 943831A ZA 943831 B ZA943831 B ZA 943831B
Authority
ZA
South Africa
Prior art keywords
drill steel
drill
steel
Prior art date
Application number
ZA943831A
Inventor
Sture Hedman
Original Assignee
Sandvik Ab
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 Sandvik Ab filed Critical Sandvik Ab
Publication of ZA943831B publication Critical patent/ZA943831B/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
ZA943831A 1993-06-08 1994-06-01 Drill steel ZA943831B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9301943A SE9301943L (en) 1993-06-08 1993-06-08 Drilling steel for striking drilling

Publications (1)

Publication Number Publication Date
ZA943831B true ZA943831B (en) 1995-02-02

Family

ID=20390186

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA943831A ZA943831B (en) 1993-06-08 1994-06-01 Drill steel

Country Status (2)

Country Link
SE (1) SE9301943L (en)
ZA (1) ZA943831B (en)

Also Published As

Publication number Publication date
SE9301943D0 (en) 1993-06-08
SE501177C2 (en) 1994-12-05
SE9301943L (en) 1994-12-05

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