EP0905348A3 - Lame de coupe pour élargisseur - Google Patents

Lame de coupe pour élargisseur Download PDF

Info

Publication number
EP0905348A3
EP0905348A3 EP98122696A EP98122696A EP0905348A3 EP 0905348 A3 EP0905348 A3 EP 0905348A3 EP 98122696 A EP98122696 A EP 98122696A EP 98122696 A EP98122696 A EP 98122696A EP 0905348 A3 EP0905348 A3 EP 0905348A3
Authority
EP
European Patent Office
Prior art keywords
blade
arm
wear resistant
underreamer
multiplicity
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.)
Granted
Application number
EP98122696A
Other languages
German (de)
English (en)
Other versions
EP0905348A2 (fr
EP0905348B1 (fr
Inventor
Bruce Mcgarian
Richard Alvin Armell
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.)
Smith International Inc
Original Assignee
Red Baron Oil Tools Rental Ltd
Smith International 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 Red Baron Oil Tools Rental Ltd, Smith International Inc filed Critical Red Baron Oil Tools Rental Ltd
Priority claimed from EP95935506A external-priority patent/EP0788578B1/fr
Publication of EP0905348A2 publication Critical patent/EP0905348A2/fr
Publication of EP0905348A3 publication Critical patent/EP0905348A3/fr
Application granted granted Critical
Publication of EP0905348B1 publication Critical patent/EP0905348B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits

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)
  • Butt Welding And Welding Of Specific Article (AREA)
EP98122696A 1994-10-31 1995-10-31 Lame de coupe pour élargisseur Expired - Lifetime EP0905348B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB9422022 1994-10-31
GB9422022A GB9422022D0 (en) 1994-10-31 1994-10-31 Two stage underreamer
GB9505430 1995-03-17
GBGB9505430.0A GB9505430D0 (en) 1994-10-31 1995-03-17 2-stage underreamer
EP95935506A EP0788578B1 (fr) 1994-10-31 1995-10-31 Elargisseur a deux etages

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP95935506A Division EP0788578B1 (fr) 1994-10-31 1995-10-31 Elargisseur a deux etages

Publications (3)

Publication Number Publication Date
EP0905348A2 EP0905348A2 (fr) 1999-03-31
EP0905348A3 true EP0905348A3 (fr) 1999-06-30
EP0905348B1 EP0905348B1 (fr) 2005-01-26

Family

ID=10763721

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98122696A Expired - Lifetime EP0905348B1 (fr) 1994-10-31 1995-10-31 Lame de coupe pour élargisseur

Country Status (2)

Country Link
EP (1) EP0905348B1 (fr)
GB (2) GB9422022D0 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109667544A (zh) * 2018-12-27 2019-04-23 中国水利水电科学研究院 一种岩体钻孔扩孔器及扩孔方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3851719A (en) * 1973-03-22 1974-12-03 American Coldset Corp Stabilized under-drilling apparatus
GB1464464A (en) * 1974-04-25 1977-02-16 Mindrill Ltd Drill comprising a tubular drill string and apparatus releasably connectable to the bottom of said drill string
EP0058061A2 (fr) * 1981-02-07 1982-08-18 DRILLING & SERVICE U.K. LIMITED Outil de forage pour formation souterraine
US4586574A (en) * 1983-05-20 1986-05-06 Norton Christensen, Inc. Cutter configuration for a gage-to-shoulder transition and face pattern
US4809793A (en) * 1987-10-19 1989-03-07 Hailey Charles D Enhanced diameter clean-out tool and method
EP0325271A2 (fr) * 1988-01-20 1989-07-26 Eastman Teleco Company Trépan
EP0391683A1 (fr) * 1989-04-05 1990-10-10 De Beers Industrial Diamond Division (Pty) Limited Trépan de forage
US5036921A (en) * 1990-06-28 1991-08-06 Slimdril International, Inc. Underreamer with sequentially expandable cutter blades
EP0522553A1 (fr) * 1991-07-11 1993-01-13 Baker Hughes Incorporated Pointe de perçage à stabilité accrue

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2644673A (en) * 1949-09-26 1953-07-07 Baker Oil Tools Inc Expansible rotary drill bit and cutter
US5242017A (en) * 1991-12-27 1993-09-07 Hailey Charles D Cutter blades for rotary tubing tools

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3851719A (en) * 1973-03-22 1974-12-03 American Coldset Corp Stabilized under-drilling apparatus
GB1464464A (en) * 1974-04-25 1977-02-16 Mindrill Ltd Drill comprising a tubular drill string and apparatus releasably connectable to the bottom of said drill string
EP0058061A2 (fr) * 1981-02-07 1982-08-18 DRILLING & SERVICE U.K. LIMITED Outil de forage pour formation souterraine
US4586574A (en) * 1983-05-20 1986-05-06 Norton Christensen, Inc. Cutter configuration for a gage-to-shoulder transition and face pattern
US4809793A (en) * 1987-10-19 1989-03-07 Hailey Charles D Enhanced diameter clean-out tool and method
EP0325271A2 (fr) * 1988-01-20 1989-07-26 Eastman Teleco Company Trépan
EP0391683A1 (fr) * 1989-04-05 1990-10-10 De Beers Industrial Diamond Division (Pty) Limited Trépan de forage
US5036921A (en) * 1990-06-28 1991-08-06 Slimdril International, Inc. Underreamer with sequentially expandable cutter blades
EP0522553A1 (fr) * 1991-07-11 1993-01-13 Baker Hughes Incorporated Pointe de perçage à stabilité accrue

Also Published As

Publication number Publication date
EP0905348A2 (fr) 1999-03-31
GB9422022D0 (en) 1994-12-21
EP0905348B1 (fr) 2005-01-26
GB9505430D0 (en) 1995-05-03

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