GB201018612D0 - Underreamer - Google Patents

Underreamer

Info

Publication number
GB201018612D0
GB201018612D0 GBGB1018612.0A GB201018612A GB201018612D0 GB 201018612 D0 GB201018612 D0 GB 201018612D0 GB 201018612 A GB201018612 A GB 201018612A GB 201018612 D0 GB201018612 D0 GB 201018612D0
Authority
GB
United Kingdom
Prior art keywords
underreamer
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Withdrawn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
GBGB1018612.0A
Other versions
GB2475167A (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.)
WELLTONIC Ltd
Original Assignee
WELLTONIC 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 WELLTONIC Ltd filed Critical WELLTONIC Ltd
Publication of GB201018612D0 publication Critical patent/GB201018612D0/en
Publication of GB2475167A publication Critical patent/GB2475167A/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Withdrawn legal-status Critical Current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
    • 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
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB1018612A 2009-11-04 2010-11-04 Under reamer Withdrawn GB2475167A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0919332.7A GB0919332D0 (en) 2009-11-04 2009-11-04 Underreamer

Publications (2)

Publication Number Publication Date
GB201018612D0 true GB201018612D0 (en) 2010-12-22
GB2475167A GB2475167A (en) 2011-05-11

Family

ID=41501892

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0919332.7A Ceased GB0919332D0 (en) 2009-11-04 2009-11-04 Underreamer
GB1018612A Withdrawn GB2475167A (en) 2009-11-04 2010-11-04 Under reamer

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0919332.7A Ceased GB0919332D0 (en) 2009-11-04 2009-11-04 Underreamer

Country Status (1)

Country Link
GB (2) GB0919332D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2612166C1 (en) * 2015-11-10 2017-03-02 Закрытое акционерное общество "ПРОММАШСЕРВИС" Expander
CN109162658B (en) * 2018-10-29 2020-08-11 大庆东达节能技术开发服务有限公司 Injection well booster

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB540027A (en) * 1940-04-26 1941-10-02 Percy Cox Improvements in and relating to rock boring and like tools
US5060738A (en) * 1990-09-20 1991-10-29 Slimdril International, Inc. Three-blade underreamer
US5402856A (en) * 1993-12-21 1995-04-04 Amoco Corporation Anti-whirl underreamer
GB2308608B (en) * 1994-10-31 1998-11-18 Red Baron The 2-stage underreamer
US6668949B1 (en) * 1999-10-21 2003-12-30 Allen Kent Rives Underreamer and method of use
GB2458527B (en) * 2008-03-25 2012-07-25 Hunting Welltonic Ltd High expansion anchoring and stabilisation device
EP2364393B1 (en) * 2008-11-10 2015-01-07 Weatherford/Lamb, Inc. Extendable cutting tools for use in a wellbore

Also Published As

Publication number Publication date
GB2475167A (en) 2011-05-11
GB0919332D0 (en) 2009-12-23

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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)