GB2385342B - Improved downhole device - Google Patents

Improved downhole device

Info

Publication number
GB2385342B
GB2385342B GB0302119A GB0302119A GB2385342B GB 2385342 B GB2385342 B GB 2385342B GB 0302119 A GB0302119 A GB 0302119A GB 0302119 A GB0302119 A GB 0302119A GB 2385342 B GB2385342 B GB 2385342B
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
GB0302119A
Other versions
GB2385342A (en
GB0302119D0 (en
Inventor
Harry Whitelaw
Serena Arif
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

    • 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
    • E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/24—Guiding 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 GB0302119D0 (en) 2003-03-05
GB2385342A GB2385342A (en) 2003-08-20
GB2385342B true 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
WO2014082183A1 (en) * 2012-11-29 2014-06-05 Per Angman Tubular centralizer
US10100588B2 (en) * 2012-11-29 2018-10-16 Per Angman Mixed form tubular centralizers and method of use

Citations (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
EP0142365A1 (en) * 1983-11-17 1985-05-22 Regal International Inc. Protector clamp for well control lines
GB2211225A (en) * 1987-10-15 1989-06-28 Exxon Production Research Co 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
GB2361019A (en) * 2000-04-08 2001-10-10 Polyoil Ltd Polyamide Casing Centraliser

Patent Citations (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
EP0142365A1 (en) * 1983-11-17 1985-05-22 Regal International Inc. Protector clamp for well control lines
GB2211225A (en) * 1987-10-15 1989-06-28 Exxon Production Research Co 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
GB2361019A (en) * 2000-04-08 2001-10-10 Polyoil Ltd Polyamide Casing Centraliser

Also Published As

Publication number Publication date
GB2385342A (en) 2003-08-20
GB0302119D0 (en) 2003-03-05

Similar Documents

Publication Publication Date Title
GB0219758D0 (en) Device
AU2003245720A8 (en) Electroptic device
GB0222559D0 (en) Device
EP1561552A4 (en) Boring device
GB0202064D0 (en) Device
GB0216290D0 (en) Device
PL372216A1 (en) Squeeze-spray device
GB0224980D0 (en) Laptop-PC-tagging device
GB0225491D0 (en) Device
GB0210296D0 (en) Device
GB0203469D0 (en) Device
GB2385342B (en) Improved downhole device
GB2404686B (en) Packer
GB0217048D0 (en) Strap-securing device
AU2003285894A8 (en) Multiple well device
AU2003304212A8 (en) Explosive-activated safe-arm device
EP1557831A4 (en) Disk-loading device
GB0202555D0 (en) Improved downhole device
GB0216045D0 (en) Improved downhole device
GB0207378D0 (en) Device
GB0210315D0 (en) Device
GB0211021D0 (en) Downhole device operation
GB0211022D0 (en) Operating downhole devices
GB0219243D0 (en) Device
ZA200406554B (en) Telemetry device

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