GB8803945D0 - Centering cage for cylindrical structural part - Google Patents

Centering cage for cylindrical structural part

Info

Publication number
GB8803945D0
GB8803945D0 GB888803945A GB8803945A GB8803945D0 GB 8803945 D0 GB8803945 D0 GB 8803945D0 GB 888803945 A GB888803945 A GB 888803945A GB 8803945 A GB8803945 A GB 8803945A GB 8803945 D0 GB8803945 D0 GB 8803945D0
Authority
GB
United Kingdom
Prior art keywords
structural part
cylindrical structural
centering cage
cage
centering
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.)
Withdrawn
Application number
GB888803945A
Other versions
GB2201176A (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB8803945D0 publication Critical patent/GB8803945D0/en
Publication of GB2201176A publication Critical patent/GB2201176A/en
Withdrawn legal-status Critical Current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
    • E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
    • E21B17/1021—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs
    • E21B17/1028—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs with arcuate springs only, e.g. baskets with outwardly bowed strips for cementing operations

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)
  • Springs (AREA)
GB08803945A 1987-02-19 1988-02-19 Pipe centraliser Withdrawn GB2201176A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3705215 1987-02-19

Publications (2)

Publication Number Publication Date
GB8803945D0 true GB8803945D0 (en) 1988-03-23
GB2201176A GB2201176A (en) 1988-08-24

Family

ID=6321285

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08803945A Withdrawn GB2201176A (en) 1987-02-19 1988-02-19 Pipe centraliser

Country Status (1)

Country Link
GB (1) GB2201176A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2316422A (en) * 1996-08-24 1998-02-25 Weatherford Lamb Centralizer
US6457519B1 (en) * 2001-02-20 2002-10-01 Antelope Oil Tool And Manufacturing Company, Inc. Expandable centralizer
GB0120348D0 (en) * 2001-08-22 2001-10-17 Pipeline Engineering And Suppl Paddle support
AU2002341386A1 (en) 2002-08-12 2004-02-25 Eni S.P.A. Integral centraliser
GB2444060B (en) * 2006-11-21 2008-12-17 Swelltec Ltd Downhole apparatus and method
WO2008062177A1 (en) 2006-11-21 2008-05-29 Swelltec Limited Down hole apparatus and method
US20090308615A1 (en) * 2008-06-11 2009-12-17 Frank's International, Inc. Modular Low-Clearance Centralizer and Method of Making Modular Low-Clearance Centralizer
RU2456428C1 (en) * 2011-03-16 2012-07-20 Владимир Иванович Ванифатьев Spring centraliser for well
US10012035B2 (en) 2014-06-10 2018-07-03 Top-Co Inc. Easy-start centralizer with asymetrical bow springs

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB701540A (en) * 1951-06-26 1953-12-30 Albert Edward Atkinson Improvements in and relating to devices for cleaning the walls of bore holes
GB729628A (en) * 1953-09-18 1955-05-11 Albert Edward Atkinson Improvements in and relating to devices for cleaning the walls of bore holes
GB811380A (en) * 1956-07-26 1959-04-02 Joseph Caslake Junior Improvements in or relating to devices for scratching or brushing the walls of bores
GB844276A (en) * 1958-07-24 1960-08-10 B And W Inc Stop collar for a well pipe
US4143713A (en) * 1977-10-25 1979-03-13 Gunter Kreft Self-centering basket

Also Published As

Publication number Publication date
GB2201176A (en) 1988-08-24

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)