ZA885344B - Device for steering a drilling tool and/or multiple drill rod unit - Google Patents

Device for steering a drilling tool and/or multiple drill rod unit

Info

Publication number
ZA885344B
ZA885344B ZA885344A ZA885344A ZA885344B ZA 885344 B ZA885344 B ZA 885344B ZA 885344 A ZA885344 A ZA 885344A ZA 885344 A ZA885344 A ZA 885344A ZA 885344 B ZA885344 B ZA 885344B
Authority
ZA
South Africa
Prior art keywords
steering
drilling tool
drill rod
rod unit
multiple drill
Prior art date
Application number
ZA885344A
Inventor
Alfred Eric Walter Fletcher
Eric Walter Fletcher Alfred
Trevellyn Moeller Coltman
Moeller Coltman Trevellyn
Bernhard Prevedell
Prevedell Bernhard
Original Assignee
Preussag Ag
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 Preussag Ag filed Critical Preussag Ag
Priority to ZA885344A priority Critical patent/ZA885344B/en
Publication of ZA885344B publication Critical patent/ZA885344B/en

Links

ZA885344A 1987-06-16 1988-07-22 Device for steering a drilling tool and/or multiple drill rod unit ZA885344B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA885344A ZA885344B (en) 1987-06-16 1988-07-22 Device for steering a drilling tool and/or multiple drill rod unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA874318 1987-06-16
ZA885344A ZA885344B (en) 1987-06-16 1988-07-22 Device for steering a drilling tool and/or multiple drill rod unit

Publications (1)

Publication Number Publication Date
ZA885344B true ZA885344B (en) 1989-03-29

Family

ID=27138224

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA885344A ZA885344B (en) 1987-06-16 1988-07-22 Device for steering a drilling tool and/or multiple drill rod unit

Country Status (1)

Country Link
ZA (1) ZA885344B (en)

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