GB2290331B - Casing Centraliser - Google Patents

Casing Centraliser

Info

Publication number
GB2290331B
GB2290331B GB9516681A GB9516681A GB2290331B GB 2290331 B GB2290331 B GB 2290331B GB 9516681 A GB9516681 A GB 9516681A GB 9516681 A GB9516681 A GB 9516681A GB 2290331 B GB2290331 B GB 2290331B
Authority
GB
United Kingdom
Prior art keywords
casing centraliser
centraliser
casing
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 - Fee Related
Application number
GB9516681A
Other versions
GB9516681D0 (en
GB2290331A (en
Inventor
William Barron
Ian Alistair Kirk
Alistair Bertram Clark
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.)
Downhole Products Ltd
Original Assignee
Downhole Products UK 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26304488&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=GB2290331(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from GB9404857A external-priority patent/GB9404857D0/en
Application filed by Downhole Products UK Ltd filed Critical Downhole Products UK Ltd
Priority to GB9516681A priority Critical patent/GB2290331B/en
Publication of GB9516681D0 publication Critical patent/GB9516681D0/en
Publication of GB2290331A publication Critical patent/GB2290331A/en
Application granted granted Critical
Publication of GB2290331B publication Critical patent/GB2290331B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E21B17/1078—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
    • 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
    • E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve
    • E21B17/1064—Pipes or rods with a relatively rotating sleeve

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)
GB9516681A 1994-03-12 1995-03-09 Casing Centraliser Expired - Fee Related GB2290331B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9516681A GB2290331B (en) 1994-03-12 1995-03-09 Casing Centraliser

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9404857A GB9404857D0 (en) 1994-03-12 1994-03-12 Casing centraliser
GB9504781A GB2285649B (en) 1994-03-12 1995-03-09 Casing centraliser
GB9516681A GB2290331B (en) 1994-03-12 1995-03-09 Casing Centraliser

Publications (3)

Publication Number Publication Date
GB9516681D0 GB9516681D0 (en) 1995-10-18
GB2290331A GB2290331A (en) 1995-12-20
GB2290331B true GB2290331B (en) 1996-10-09

Family

ID=26304488

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9516681A Expired - Fee Related GB2290331B (en) 1994-03-12 1995-03-09 Casing Centraliser
GB9504781A Expired - Lifetime GB2285649B (en) 1994-03-12 1995-03-09 Casing centraliser

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9504781A Expired - Lifetime GB2285649B (en) 1994-03-12 1995-03-09 Casing centraliser

Country Status (1)

Country Link
GB (2) GB2290331B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2747427B1 (en) * 1996-04-15 1998-07-03 Elf Aquitaine RECOMPACTOR STABILIZER FOR OIL WELL DRILLING
GB2316422A (en) * 1996-08-24 1998-02-25 Weatherford Lamb Centralizer
GB9703608D0 (en) * 1997-02-21 1997-04-09 Downhole Products Plc Casing centraliser
GB9724194D0 (en) 1997-11-15 1998-01-14 Brunel Oilfield Serv Uk Ltd Improvements in or relating to downhole tools
GB0001435D0 (en) 2000-01-22 2000-03-08 Downhole Products Plc Centraliser
GB2487443B (en) 2009-11-13 2014-05-07 Wwt North America Holdings Inc Open hole non-rotating sleeve and assembly
US9062501B2 (en) 2010-12-01 2015-06-23 Matrix Composites & Engineering Limited Downhole centraliser
USD674818S1 (en) 2011-10-28 2013-01-22 Top-Co Cementing Products Inc. Casing centralizer
USD665825S1 (en) 2011-10-28 2012-08-21 Top-Co Cementing Products Inc. Casing centralizer
USD665824S1 (en) 2011-10-28 2012-08-21 Top-Co Cementing Products Inc. Casing centralizer
USD674817S1 (en) 2011-10-28 2013-01-22 Top-Co Cementing Products Inc. Casing centralizer
RU178932U1 (en) * 2017-12-11 2018-04-23 Общество с ограниченной ответственностью "Промперфоратор" Centralizer for perforator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB682362A (en) * 1950-12-18 1952-11-05 Baker Oil Tools Inc A centring device for centring conduits and the like in well bores
GB2171436A (en) * 1985-02-22 1986-08-28 Raymond Felix Mikolajczyk Casing centralizer
GB2197008A (en) * 1986-10-30 1988-05-11 Raymond Felix Mikolajczyk Casing centraliser
US4984633A (en) * 1989-10-20 1991-01-15 Weatherford U.S., Inc. Nozzle effect protectors, centralizers, and stabilizers and related methods
GB2282615A (en) * 1993-10-09 1995-04-12 Uwg Ltd Casing centraliser

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USH1192H (en) * 1990-10-26 1993-06-01 Exxon Production Research Company Low-torque centralizer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB682362A (en) * 1950-12-18 1952-11-05 Baker Oil Tools Inc A centring device for centring conduits and the like in well bores
GB2171436A (en) * 1985-02-22 1986-08-28 Raymond Felix Mikolajczyk Casing centralizer
GB2197008A (en) * 1986-10-30 1988-05-11 Raymond Felix Mikolajczyk Casing centraliser
US4984633A (en) * 1989-10-20 1991-01-15 Weatherford U.S., Inc. Nozzle effect protectors, centralizers, and stabilizers and related methods
GB2282615A (en) * 1993-10-09 1995-04-12 Uwg Ltd Casing centraliser

Also Published As

Publication number Publication date
GB9516681D0 (en) 1995-10-18
GB2290331A (en) 1995-12-20
GB2285649A (en) 1995-07-19
GB2285649B (en) 1996-02-14
GB9504781D0 (en) 1995-04-26

Similar Documents

Publication Publication Date Title
GB9823777D0 (en) Casing centraliser
GB2311313A8 (en) Well casing
GB2286846B (en) Casing apparatus
GB2308607B (en) Downhole system
GB9419313D0 (en) Centralisers
GB9320845D0 (en) Casing centraliser
GB2290331B (en) Casing Centraliser
GB9522926D0 (en) Downhole assembly
GB2294485B (en) Wellbore fluids
GB9418882D0 (en) Downhole camera assembly
GB2277336B (en) Centraliser
AU3570595A (en) Centralisers
PL320008A1 (en) Unisize slips
DE59502046D1 (en) casing
GB9523844D0 (en) Casing
GB9514242D0 (en) Downhole packer
GB9420615D0 (en) Oilfield operations
GB9800885D0 (en) Casing centralisers
ZA959549B (en) Casing
AU123033S (en) Casing
GB9205629D0 (en) Casing centraliser
CA80776S (en) Anteena casing
GB9618403D0 (en) Casing
AU133261S (en) Casing
AU133262S (en) Casing

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030309