NO920275L - Fremgangsmaate og apparat for retningsboring - Google Patents

Fremgangsmaate og apparat for retningsboring

Info

Publication number
NO920275L
NO920275L NO92920275A NO920275A NO920275L NO 920275 L NO920275 L NO 920275L NO 92920275 A NO92920275 A NO 92920275A NO 920275 A NO920275 A NO 920275A NO 920275 L NO920275 L NO 920275L
Authority
NO
Norway
Prior art keywords
procedure
directional drilling
drilling
directional
Prior art date
Application number
NO92920275A
Other languages
English (en)
Other versions
NO920275D0 (no
Inventor
Bernhard Prevedel
Warren Askew
Alan Eddison
Original Assignee
Anadrill Int Sa
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 Anadrill Int Sa filed Critical Anadrill Int Sa
Publication of NO920275D0 publication Critical patent/NO920275D0/no
Publication of NO920275L publication Critical patent/NO920275L/no

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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/067—Deflecting the direction of boreholes with means for locking sections of a pipe or of a guide for a shaft in angular relation, e.g. adjustable bent sub
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/068—Deflecting the direction of boreholes drilled by a down-hole drilling motor
NO92920275A 1991-02-01 1992-01-21 Fremgangsmaate og apparat for retningsboring NO920275L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/648,956 US5139094A (en) 1991-02-01 1991-02-01 Directional drilling methods and apparatus

Publications (2)

Publication Number Publication Date
NO920275D0 NO920275D0 (no) 1992-01-21
NO920275L true NO920275L (no) 1992-08-03

Family

ID=24602902

Family Applications (1)

Application Number Title Priority Date Filing Date
NO92920275A NO920275L (no) 1991-02-01 1992-01-21 Fremgangsmaate og apparat for retningsboring

Country Status (4)

Country Link
US (1) US5139094A (no)
EP (1) EP0497420A1 (no)
CA (1) CA2060449A1 (no)
NO (1) NO920275L (no)

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Also Published As

Publication number Publication date
US5139094A (en) 1992-08-18
NO920275D0 (no) 1992-01-21
EP0497420A1 (en) 1992-08-05
CA2060449A1 (en) 1992-08-02

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