NO158637C - DRIVE UNIT. - Google Patents

DRIVE UNIT.

Info

Publication number
NO158637C
NO158637C NO85854343A NO854343A NO158637C NO 158637 C NO158637 C NO 158637C NO 85854343 A NO85854343 A NO 85854343A NO 854343 A NO854343 A NO 854343A NO 158637 C NO158637 C NO 158637C
Authority
NO
Norway
Prior art keywords
drive unit
drive
unit
Prior art date
Application number
NO85854343A
Other languages
Norwegian (no)
Other versions
NO854343L (en
NO158637B (en
Inventor
George I Boyadjieff
Original Assignee
Varco Int
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
Priority claimed from US06/404,896 external-priority patent/US4449596A/en
Publication of NO854343L publication Critical patent/NO854343L/en
Application filed by Varco Int filed Critical Varco Int
Publication of NO158637B publication Critical patent/NO158637B/en
Publication of NO158637C publication Critical patent/NO158637C/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16—Connecting or disconnecting pipe couplings or joints
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/02—Rod or cable suspensions

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling And Boring (AREA)
  • Earth Drilling (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Vehicle Body Suspensions (AREA)
  • Control Of Direct Current Motors (AREA)
NO85854343A 1982-08-03 1985-10-31 DRIVE UNIT. NO158637C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/404,896 US4449596A (en) 1982-08-03 1982-08-03 Drilling of wells with top drive unit
NO832774A NO157630C (en) 1982-08-03 1983-08-01 DRILLING DEVICE WITH A DRIVING DEVICE LOCATED UPPER IN A DRILLING STREET.

Publications (3)

Publication Number Publication Date
NO854343L NO854343L (en) 1984-02-06
NO158637B NO158637B (en) 1988-07-04
NO158637C true NO158637C (en) 1988-10-12

Family

ID=40174223

Family Applications (3)

Application Number Title Priority Date Filing Date
NO85854202A NO157710C (en) 1982-08-03 1985-10-22 DRIVING UNIT VERTICALLY MOVABLE IN A DRILL.
NO85854343A NO158637C (en) 1982-08-03 1985-10-31 DRIVE UNIT.
NO85854358A NO157709C (en) 1982-08-03 1985-11-01 DRIVING UNIT VERTICALLY MOVABLE IN A DRILL.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NO85854202A NO157710C (en) 1982-08-03 1985-10-22 DRIVING UNIT VERTICALLY MOVABLE IN A DRILL.

Family Applications After (1)

Application Number Title Priority Date Filing Date
NO85854358A NO157709C (en) 1982-08-03 1985-11-01 DRIVING UNIT VERTICALLY MOVABLE IN A DRILL.

Country Status (1)

Country Link
NO (3) NO157710C (en)

Also Published As

Publication number Publication date
NO157710C (en) 1988-05-04
NO854202L (en) 1984-02-06
NO854343L (en) 1984-02-06
NO157710B (en) 1988-01-25
NO158637B (en) 1988-07-04
NO157709C (en) 1988-05-04
NO854358L (en) 1984-02-06
NO157709B (en) 1988-01-25

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Legal Events

Date Code Title Description
MK1K Patent expired

Free format text: EXPIRED IN AUGUST 2003