ZA792111B - Drill string - Google Patents

Drill string

Info

Publication number
ZA792111B
ZA792111B ZA792111A ZA792111A ZA792111B ZA 792111 B ZA792111 B ZA 792111B ZA 792111 A ZA792111 A ZA 792111A ZA 792111 A ZA792111 A ZA 792111A ZA 792111 B ZA792111 B ZA 792111B
Authority
ZA
South Africa
Prior art keywords
drill string
drill
string
Prior art date
Application number
ZA792111A
Inventor
E Bailey
Original Assignee
Joy Mfg Co
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 Joy Mfg Co filed Critical Joy Mfg Co
Publication of ZA792111B publication Critical patent/ZA792111B/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
ZA792111A 1978-06-22 1979-05-02 Drill string ZA792111B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US91819578A 1978-06-22 1978-06-22

Publications (1)

Publication Number Publication Date
ZA792111B true ZA792111B (en) 1980-05-28

Family

ID=25439957

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA792111A ZA792111B (en) 1978-06-22 1979-05-02 Drill string

Country Status (4)

Country Link
CA (1) CA1101407A (en)
FI (1) FI791927A (en)
SE (1) SE7905381L (en)
ZA (1) ZA792111B (en)

Also Published As

Publication number Publication date
CA1101407A (en) 1981-05-19
SE7905381L (en) 1979-12-23
FI791927A (en) 1979-12-23

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