GB0302119D0 - Improved downhole device - Google Patents

Improved downhole device

Info

Publication number
GB0302119D0
GB0302119D0 GBGB0302119.3A GB0302119A GB0302119D0 GB 0302119 D0 GB0302119 D0 GB 0302119D0 GB 0302119 A GB0302119 A GB 0302119A GB 0302119 D0 GB0302119 D0 GB 0302119D0
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.)
Granted
Application number
GBGB0302119.3A
Other versions
GB2385342A (en
GB2385342B (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.)
Polyoil Ltd
Original Assignee
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
Priority claimed from GB0202555A external-priority patent/GB0202555D0/en
Priority claimed from GB0216045A external-priority patent/GB0216045D0/en
Application filed by Polyoil Ltd filed Critical Polyoil Ltd
Publication of GB0302119D0 publication Critical patent/GB0302119D0/en
Publication of GB2385342A publication Critical patent/GB2385342A/en
Application granted granted Critical
Publication of GB2385342B publication Critical patent/GB2385342B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10Wear protectors; Centralising devices, e.g. stabilisers
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1078Stabilisers or centralisers for casing, tubing or drill pipes
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/24Guiding or centralising devices for drilling rods or pipes

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)
GB0302119A 2002-02-05 2003-01-30 Improved downhole device Expired - Lifetime GB2385342B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0202555A GB0202555D0 (en) 2002-02-05 2002-02-05 Improved downhole device
GB0216045A GB0216045D0 (en) 2002-07-12 2002-07-12 Improved downhole device

Publications (3)

Publication Number Publication Date
GB0302119D0 true GB0302119D0 (en) 2003-03-05
GB2385342A GB2385342A (en) 2003-08-20
GB2385342B GB2385342B (en) 2006-05-17

Family

ID=26246962

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0302119A Expired - Lifetime GB2385342B (en) 2002-02-05 2003-01-30 Improved downhole device

Country Status (1)

Country Link
GB (1) GB2385342B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0223035D0 (en) * 2002-10-04 2002-11-13 Polyoil Ltd Improved downhole device and method
NO326223B1 (en) 2003-10-29 2008-10-20 Weatherford Lamb Apparatus and method for reducing drill vibration when drilling with feed rudder
GB0621892D0 (en) 2006-11-03 2006-12-13 Polyoil Ltd Downhole apparatus and method of forming the same
US10100588B2 (en) * 2012-11-29 2018-10-16 Per Angman Mixed form tubular centralizers and method of use
CA2892537C (en) * 2012-11-29 2017-10-10 Per Angman Tubular centralizer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB811793A (en) * 1955-09-26 1959-04-15 Baker Oil Tools Inc Removable drill pipe protector
GB1209001A (en) * 1969-04-09 1970-10-14 Minor Burt S Well drill pipe protector
US4266578A (en) * 1976-04-23 1981-05-12 Regal Tool & Rubber Co., Inc. Drill pipe protector
US4543998A (en) * 1983-11-17 1985-10-01 Regal International, Inc. Protector clamp for well control lines
US4796670A (en) * 1987-10-15 1989-01-10 Exxon Production Research Company Drill pipe protector
GB2304753A (en) * 1995-08-24 1997-03-26 Weatherford Lamb Method for securing a well tool to a tubular and well tool adapted for said method
GB0008594D0 (en) * 2000-04-08 2000-05-31 Polyoil Ltd Improved casing centraliser

Also Published As

Publication number Publication date
GB2385342A (en) 2003-08-20
GB2385342B (en) 2006-05-17

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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: 20230129