GB2360537B - Roller reamer with thrust bearing - Google Patents

Roller reamer with thrust bearing

Info

Publication number
GB2360537B
GB2360537B GB0107232A GB0107232A GB2360537B GB 2360537 B GB2360537 B GB 2360537B GB 0107232 A GB0107232 A GB 0107232A GB 0107232 A GB0107232 A GB 0107232A GB 2360537 B GB2360537 B GB 2360537B
Authority
GB
United Kingdom
Prior art keywords
thrust bearing
roller reamer
reamer
roller
thrust
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.)
Expired - Fee Related
Application number
GB0107232A
Other versions
GB0107232D0 (en
GB2360537A (en
Inventor
Graham Edgley
Niels Christian Olaf Friis
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.)
DESIGN ENGINEERING Ltd
Weatherford Lamb Inc
Original Assignee
DESIGN ENGINEERING Ltd
Weatherford Lamb Inc
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 DESIGN ENGINEERING Ltd, Weatherford Lamb Inc filed Critical DESIGN ENGINEERING Ltd
Publication of GB0107232D0 publication Critical patent/GB0107232D0/en
Publication of GB2360537A publication Critical patent/GB2360537A/en
Application granted granted Critical
Publication of GB2360537B publication Critical patent/GB2360537B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/28—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
    • E21B10/30—Longitudinal axis roller reamers, e.g. reamer stabilisers

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)
GB0107232A 2000-03-22 2001-03-22 Roller reamer with thrust bearing Expired - Fee Related GB2360537B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0006757.9A GB0006757D0 (en) 2000-03-22 2000-03-22 Roller reamer with thrust bearing

Publications (3)

Publication Number Publication Date
GB0107232D0 GB0107232D0 (en) 2001-05-16
GB2360537A GB2360537A (en) 2001-09-26
GB2360537B true GB2360537B (en) 2004-01-14

Family

ID=9888052

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0006757.9A Ceased GB0006757D0 (en) 2000-03-22 2000-03-22 Roller reamer with thrust bearing
GB0107232A Expired - Fee Related GB2360537B (en) 2000-03-22 2001-03-22 Roller reamer with thrust bearing

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0006757.9A Ceased GB0006757D0 (en) 2000-03-22 2000-03-22 Roller reamer with thrust bearing

Country Status (1)

Country Link
GB (2) GB0006757D0 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020910A (en) * 1976-05-19 1977-05-03 Rapidex, Inc. Sealing between relatively rotating members in boring apparatus
US4480704A (en) * 1982-07-19 1984-11-06 Smith International, Inc. Reamer
US4561508A (en) * 1980-08-01 1985-12-31 Hughes Tool Company Roller-reamer
US5339910A (en) * 1993-04-14 1994-08-23 Union Oil Company Of California Drilling torsional friction reducer
WO1995013452A1 (en) * 1993-11-10 1995-05-18 Gearhart United Pty. Ltd. Improved rotary roller reamer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020910A (en) * 1976-05-19 1977-05-03 Rapidex, Inc. Sealing between relatively rotating members in boring apparatus
US4561508A (en) * 1980-08-01 1985-12-31 Hughes Tool Company Roller-reamer
US4480704A (en) * 1982-07-19 1984-11-06 Smith International, Inc. Reamer
US5339910A (en) * 1993-04-14 1994-08-23 Union Oil Company Of California Drilling torsional friction reducer
WO1995013452A1 (en) * 1993-11-10 1995-05-18 Gearhart United Pty. Ltd. Improved rotary roller reamer

Also Published As

Publication number Publication date
GB0107232D0 (en) 2001-05-16
GB0006757D0 (en) 2000-05-10
GB2360537A (en) 2001-09-26

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20151022 AND 20151028

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20190322