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GB2285649B - Casing centraliser - Google Patents

Casing centraliser

Info

Publication number
GB2285649B
GB2285649B GB9504781A GB9504781A GB2285649B GB 2285649 B GB2285649 B GB 2285649B GB 9504781 A GB9504781 A GB 9504781A GB 9504781 A GB9504781 A GB 9504781A GB 2285649 B GB2285649 B GB 2285649B
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 - Lifetime
Application number
GB9504781A
Other versions
GB9504781D0 (en
GB2285649A (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=GB2285649(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
Priority to GB9504781A priority patent/GB2285649B/en
Publication of GB9504781D0 publication Critical patent/GB9504781D0/en
Publication of GB2285649A publication Critical patent/GB2285649A/en
Application granted granted Critical
Publication of GB2285649B publication Critical patent/GB2285649B/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
    • E21B17/1078—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)
GB9504781A 1994-03-12 1995-03-09 Casing centraliser Expired - Lifetime GB2285649B (en)

Priority Applications (2)

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

Applications Claiming Priority (2)

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

Publications (3)

Publication Number Publication Date
GB9504781D0 GB9504781D0 (en) 1995-04-26
GB2285649A GB2285649A (en) 1995-07-19
GB2285649B true GB2285649B (en) 1996-02-14

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 Before (1)

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

Country Status (1)

Country Link
GB (2) GB2290331B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD663750S1 (en) 2011-10-28 2012-07-17 Top-Co Cementing Products Inc. Casing centralizer
USD664568S1 (en) 2011-10-28 2012-07-31 Top-Co Cementing Products, Inc. Casing centralizer
USD665824S1 (en) 2011-10-28 2012-08-21 Top-Co Cementing Products Inc. Casing centralizer
USD665825S1 (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
USD674818S1 (en) 2011-10-28 2013-01-22 Top-Co Cementing Products Inc. Casing centralizer

Families Citing this family (14)

* 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
RU2159839C2 (en) * 1998-11-16 2000-11-27 Общество с ограниченной ответственностью "Татнефть-Азнакаевскбурнефть" Centering mount-turbolator for casing string
GB0001435D0 (en) * 2000-01-22 2000-03-08 Downhole Products Plc Centraliser
RU2176718C1 (en) * 2000-06-16 2001-12-10 Общество с ограниченной ответственностью "Татнефть-Альметьевскбурнефть" Casing string centralizer of well drilled by three-cone drilling bit
RU2187618C1 (en) * 2001-03-26 2002-08-20 Открытое акционерное общество Научно-производственное объединение "Буровая техника" Centralizer for pipes of oil and gas wells
RU2263760C1 (en) * 2004-11-26 2005-11-10 ОАО "Татнефть" им. В.Д. Шашина Centralizing device for centering additional casing pipe inside main casing pipe on the well
RU2366800C2 (en) * 2007-02-26 2009-09-10 Закрытое акционерное общество "РИТЭК-Внедрение" (ЗАО "РИТЭК-Внедрение") Procedure for increasing strength of contact of annulus cement stone with environment in well
RU2422615C2 (en) * 2009-08-20 2011-06-27 Григорий Михайлович Копытов Centraliser for casing string
CA2749602C (en) 2009-11-13 2014-01-28 Wwt International, Inc. Open hole non-rotating sleeve and assembly
US9062501B2 (en) 2010-12-01 2015-06-23 Matrix Composites & Engineering Limited Downhole centraliser
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
US4984633A (en) * 1989-10-20 1991-01-15 Weatherford U.S., Inc. Nozzle effect protectors, centralizers, and stabilizers and related methods
GB2249333A (en) * 1990-10-26 1992-05-06 Exxon Production Research Co Device for substantially centering a pipe in a borehole
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
BR8700248A (en) * 1986-10-30 1988-05-24 Raymond F Mikolajczyk COATING TUBE CENTER

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
US4984633A (en) * 1989-10-20 1991-01-15 Weatherford U.S., Inc. Nozzle effect protectors, centralizers, and stabilizers and related methods
GB2249333A (en) * 1990-10-26 1992-05-06 Exxon Production Research Co Device for substantially centering a pipe in a borehole
GB2282615A (en) * 1993-10-09 1995-04-12 Uwg Ltd Casing centraliser

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD663750S1 (en) 2011-10-28 2012-07-17 Top-Co Cementing Products Inc. Casing centralizer
USD664568S1 (en) 2011-10-28 2012-07-31 Top-Co Cementing Products, Inc. Casing centralizer
USD665824S1 (en) 2011-10-28 2012-08-21 Top-Co Cementing Products Inc. Casing centralizer
USD665825S1 (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
USD674818S1 (en) 2011-10-28 2013-01-22 Top-Co Cementing Products Inc. Casing centralizer

Also Published As

Publication number Publication date
GB2290331A (en) 1995-12-20
GB9504781D0 (en) 1995-04-26
GB2285649A (en) 1995-07-19
GB2290331B (en) 1996-10-09
GB9516681D0 (en) 1995-10-18

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Legal Events

Date Code Title Description
772C Application made to the comptroller for revocation (sect. 72/1977)
772 Application made for revocation (sect. 72/1977)
772S Application withdrawn ** no order for revocation made (sect. 72/1977)
PE20 Patent expired after termination of 20 years

Expiry date: 20150308