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GB2393984B - Improved downhole device and method - Google Patents

Improved downhole device and method

Info

Publication number
GB2393984B
GB2393984B GB0323108A GB0323108A GB2393984B GB 2393984 B GB2393984 B GB 2393984B GB 0323108 A GB0323108 A GB 0323108A GB 0323108 A GB0323108 A GB 0323108A GB 2393984 B GB2393984 B GB 2393984B
Authority
GB
United Kingdom
Prior art keywords
downhole device
improved downhole
improved
downhole
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 - Lifetime
Application number
GB0323108A
Other versions
GB0323108D0 (en
GB2393984A (en
Inventor
Calum Whitelaw
Kenneth Alexander Murray
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
Polyoil Ltd
Original Assignee
WELLTONIC Ltd
Polyoil 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, Polyoil Ltd filed Critical WELLTONIC Ltd
Publication of GB0323108D0 publication Critical patent/GB0323108D0/en
Publication of GB2393984A publication Critical patent/GB2393984A/en
Application granted granted Critical
Publication of GB2393984B publication Critical patent/GB2393984B/en
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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1085—Wear protectors; Blast joints; Hard facing
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1042—Elastomer protector or centering means
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1042—Elastomer protector or centering means
    • E21B17/105—Elastomer protector or centering means split type

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)
  • Supports For Pipes And Cables (AREA)
GB0323108A 2002-10-04 2003-10-01 Improved downhole device and method Expired - Lifetime GB2393984B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0223035.7A GB0223035D0 (en) 2002-10-04 2002-10-04 Improved downhole device and method

Publications (3)

Publication Number Publication Date
GB0323108D0 GB0323108D0 (en) 2003-11-05
GB2393984A GB2393984A (en) 2004-04-14
GB2393984B true GB2393984B (en) 2006-04-19

Family

ID=9945309

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0223035.7A Ceased GB0223035D0 (en) 2002-10-04 2002-10-04 Improved downhole device and method
GB0323108A Expired - Lifetime GB2393984B (en) 2002-10-04 2003-10-01 Improved downhole device and method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0223035.7A Ceased GB0223035D0 (en) 2002-10-04 2002-10-04 Improved downhole device and method

Country Status (1)

Country Link
GB (2) GB0223035D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105696949A (en) * 2014-11-25 2016-06-22 中国石油化工股份有限公司 Moving type rotary centering guide

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2655119B1 (en) * 1989-11-30 1992-02-28 Despres Jean Michel IMPROVED PULLEY.
GB2450918B (en) * 2007-07-12 2011-08-10 Guy Wheater Wireline standoff
US8919436B2 (en) 2010-01-20 2014-12-30 Guy Wheater Wireline standoff
GB2482542B (en) * 2010-08-06 2016-05-04 Wheater Guy Low area wireline standoff
GB2482668B (en) 2010-08-09 2016-05-04 Wheater Guy Low friction wireline standoff
EP3561218A1 (en) * 2018-04-26 2019-10-30 Vallourec Oil And Gas France Protective device for a coupling box portion of a steel tube intended for use in a tubular hydrocarbon working string

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2288351A (en) * 1994-04-08 1995-10-18 Cutting & Wear Resistant Dev Method of facing a substrate
US5908072A (en) * 1997-05-02 1999-06-01 Frank's International, Inc. Non-metallic centralizer for casing
US6283205B1 (en) * 2000-01-19 2001-09-04 James H. Cannon Polymeric centralizer
US20020023749A1 (en) * 1997-02-21 2002-02-28 Ian Alastair Kirk Casing centrliser
GB2377717A (en) * 2001-06-29 2003-01-22 Polyoil Ltd Polymeric cable protector
GB2385342A (en) * 2002-02-05 2003-08-20 Polyoil Ltd A downhole device eg a centraliser

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2288351A (en) * 1994-04-08 1995-10-18 Cutting & Wear Resistant Dev Method of facing a substrate
US20020023749A1 (en) * 1997-02-21 2002-02-28 Ian Alastair Kirk Casing centrliser
US5908072A (en) * 1997-05-02 1999-06-01 Frank's International, Inc. Non-metallic centralizer for casing
US6283205B1 (en) * 2000-01-19 2001-09-04 James H. Cannon Polymeric centralizer
GB2377717A (en) * 2001-06-29 2003-01-22 Polyoil Ltd Polymeric cable protector
GB2385342A (en) * 2002-02-05 2003-08-20 Polyoil Ltd A downhole device eg a centraliser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105696949A (en) * 2014-11-25 2016-06-22 中国石油化工股份有限公司 Moving type rotary centering guide

Also Published As

Publication number Publication date
GB0323108D0 (en) 2003-11-05
GB0223035D0 (en) 2002-11-13
GB2393984A (en) 2004-04-14

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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)

Free format text: REGISTERED BETWEEN 20140612 AND 20140618

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

Free format text: REGISTERED BETWEEN 20161124 AND 20161130

PE20 Patent expired after termination of 20 years

Expiry date: 20230930