GB9825690D0 - Top drive - Google Patents

Top drive

Info

Publication number
GB9825690D0
GB9825690D0 GBGB9825690.2A GB9825690A GB9825690D0 GB 9825690 D0 GB9825690 D0 GB 9825690D0 GB 9825690 A GB9825690 A GB 9825690A GB 9825690 D0 GB9825690 D0 GB 9825690D0
Authority
GB
United Kingdom
Prior art keywords
top drive
drive
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
GBGB9825690.2A
Other versions
GB2344121A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MACTAGGART SCOTT
MacTaggart Scott Holdings Ltd
Original Assignee
MACTAGGART SCOTT
MacTaggart Scott Holdings Ltd
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 MACTAGGART SCOTT, MacTaggart Scott Holdings Ltd filed Critical MACTAGGART SCOTT
Priority to GB9825690A priority Critical patent/GB2344121A/en
Publication of GB9825690D0 publication Critical patent/GB9825690D0/en
Publication of GB2344121A publication Critical patent/GB2344121A/en
Withdrawn legal-status Critical Current

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
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E21B3/022—Top drives

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
GB9825690A 1998-11-25 1998-11-25 Top drive having drive shaft concentric with the rotor Withdrawn GB2344121A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9825690A GB2344121A (en) 1998-11-25 1998-11-25 Top drive having drive shaft concentric with the rotor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9825690A GB2344121A (en) 1998-11-25 1998-11-25 Top drive having drive shaft concentric with the rotor

Publications (2)

Publication Number Publication Date
GB9825690D0 true GB9825690D0 (en) 1999-01-20
GB2344121A GB2344121A (en) 2000-05-31

Family

ID=10842936

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9825690A Withdrawn GB2344121A (en) 1998-11-25 1998-11-25 Top drive having drive shaft concentric with the rotor

Country Status (1)

Country Link
GB (1) GB2344121A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103061669A (en) * 2013-01-21 2013-04-24 中煤科工集团西安研究院 Large-through-hole power head with brake function of coal mine directional drilling machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2916013B1 (en) * 2007-05-09 2009-11-20 Dietswell Engineering Sa DEVICE FOR THE ROTATIONAL DRIVE OF A TUBULAR ELEMENT PROVIDED FOR RECEIVING AND VEHICULATING A PRESSURIZED FLUID
US9493985B2 (en) * 2013-07-23 2016-11-15 National Oilwell Varco, L.P. Mud hydraulic top drive

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2699229B1 (en) * 1992-12-11 1995-03-10 Poclain Hydraulics Sa Hydraulic motor unit driving a drilling tool.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103061669A (en) * 2013-01-21 2013-04-24 中煤科工集团西安研究院 Large-through-hole power head with brake function of coal mine directional drilling machine
CN103061669B (en) * 2013-01-21 2015-04-08 中煤科工集团西安研究院有限公司 Large-through-hole power head with brake function of coal mine directional drilling machine

Also Published As

Publication number Publication date
GB2344121A (en) 2000-05-31

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)