GB0919332D0 - Underreamer - Google Patents

Underreamer

Info

Publication number
GB0919332D0
GB0919332D0 GBGB0919332.7A GB0919332A GB0919332D0 GB 0919332 D0 GB0919332 D0 GB 0919332D0 GB 0919332 A GB0919332 A GB 0919332A GB 0919332 D0 GB0919332 D0 GB 0919332D0
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.)
Ceased
Application number
GBGB0919332.7A
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
Priority to GBGB0919332.7A priority Critical patent/GB0919332D0/en
Publication of GB0919332D0 publication Critical patent/GB0919332D0/en
Priority to GB1018612A priority patent/GB2475167A/en
Ceased 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)
GBGB0919332.7A 2009-11-04 2009-11-04 Underreamer Ceased GB0919332D0 (en)

Priority Applications (2)

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

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB0919332D0 true GB0919332D0 (en) 2009-12-23

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 After (1)

Application Number Title Priority Date Filing Date
GB1018612A Withdrawn GB2475167A (en) 2009-11-04 2010-11-04 Under reamer

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
EP0788578B1 (en) * 1994-10-31 1999-06-09 The Red Baron (Oil Tools Rental) Limited 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
AU2009313207B2 (en) * 2008-11-10 2013-03-21 Weatherford Technology Holdings, Llc Extendable cutting tools for use in a wellbore

Also Published As

Publication number Publication date
GB2475167A (en) 2011-05-11
GB201018612D0 (en) 2010-12-22

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)