EP0298663A3 - Schneidwerkzeug im Bohrloch - Google Patents

Schneidwerkzeug im Bohrloch Download PDF

Info

Publication number
EP0298663A3
EP0298663A3 EP88305962A EP88305962A EP0298663A3 EP 0298663 A3 EP0298663 A3 EP 0298663A3 EP 88305962 A EP88305962 A EP 88305962A EP 88305962 A EP88305962 A EP 88305962A EP 0298663 A3 EP0298663 A3 EP 0298663A3
Authority
EP
European Patent Office
Prior art keywords
arm
cutting tool
extended position
downhole cutting
upper body
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Withdrawn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
EP88305962A
Other languages
English (en)
French (fr)
Other versions
EP0298663A2 (de
Inventor
Thomas Doig
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.)
Tri State Oil Tool UK Ltd
Original Assignee
Tri State Oil Tool UK 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 Tri State Oil Tool UK Ltd filed Critical Tri State Oil Tool UK Ltd
Publication of EP0298663A2 publication Critical patent/EP0298663A2/de
Publication of EP0298663A3 publication Critical patent/EP0298663A3/de
Withdrawn legal-status Critical Current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
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • E21B37/02—Scrapers specially adapted therefor
    • 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
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/322—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools cutter shifted by fluid pressure
    • 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
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • E21B37/02—Scrapers specially adapted therefor
    • E21B37/04—Scrapers specially adapted therefor operated by fluid pressure, e.g. free-piston scrapers

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
EP88305962A 1987-07-08 1988-06-29 Schneidwerkzeug im Bohrloch Withdrawn EP0298663A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878716040A GB8716040D0 (en) 1987-07-08 1987-07-08 Underreamer for descaling
GB8716040 1987-07-08

Publications (2)

Publication Number Publication Date
EP0298663A2 EP0298663A2 (de) 1989-01-11
EP0298663A3 true EP0298663A3 (de) 1990-01-03

Family

ID=10620289

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88305962A Withdrawn EP0298663A3 (de) 1987-07-08 1988-06-29 Schneidwerkzeug im Bohrloch

Country Status (3)

Country Link
EP (1) EP0298663A3 (de)
GB (1) GB8716040D0 (de)
NO (1) NO883016L (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5735359A (en) * 1996-06-10 1998-04-07 Weatherford/Lamb, Inc. Wellbore cutting tool
NO310311B1 (no) * 1999-06-24 2001-06-18 Thor Bjoernstad Underrömmer
AU2001240792A1 (en) * 2000-03-10 2001-09-17 Nortech Systems Limited Clean out tool
CA2940729C (en) 2014-03-11 2022-03-15 Qinterra Technologies As Tool for internal cleaning of a tubing or casing
CN104653154B (zh) * 2015-02-25 2017-06-13 中国石油天然气股份有限公司 通井刮削一体化工具
CN110500062B (zh) * 2018-05-17 2021-11-02 中国石油天然气股份有限公司 一种旋转定径规

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756968A (en) * 1954-04-12 1956-07-31 Grant Oil Tool Company Expansible well scraper
US2823901A (en) * 1955-11-07 1958-02-18 Kammerer Jr Archer W Expansible rotary drilling tools
US3196960A (en) * 1963-03-19 1965-07-27 Lamphere Jean K Fluid pressure expansible drill bits
US4565252A (en) * 1984-03-08 1986-01-21 Lor, Inc. Borehole operating tool with fluid circulation through arms

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756968A (en) * 1954-04-12 1956-07-31 Grant Oil Tool Company Expansible well scraper
US2823901A (en) * 1955-11-07 1958-02-18 Kammerer Jr Archer W Expansible rotary drilling tools
US3196960A (en) * 1963-03-19 1965-07-27 Lamphere Jean K Fluid pressure expansible drill bits
US4565252A (en) * 1984-03-08 1986-01-21 Lor, Inc. Borehole operating tool with fluid circulation through arms

Also Published As

Publication number Publication date
NO883016L (no) 1989-01-09
NO883016D0 (no) 1988-07-06
EP0298663A2 (de) 1989-01-11
GB8716040D0 (en) 1987-08-12

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Legal Events

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Owner name: TRI-STATE OIL TOOL (UK), A DIVISION OF BAKER HUGHE

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Effective date: 19910917

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Effective date: 19920328