CA1053577A - Knockdown centralizer - Google Patents

Knockdown centralizer

Info

Publication number
CA1053577A
CA1053577A CA263,815A CA263815A CA1053577A CA 1053577 A CA1053577 A CA 1053577A CA 263815 A CA263815 A CA 263815A CA 1053577 A CA1053577 A CA 1053577A
Authority
CA
Canada
Prior art keywords
spring
portions
collars
lug
collar
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
Application number
CA263,815A
Other languages
English (en)
French (fr)
Inventor
Henry J. Clay
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.)
Halliburton Co
Original Assignee
Halliburton Co
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 Halliburton Co filed Critical Halliburton Co
Application granted granted Critical
Publication of CA1053577A publication Critical patent/CA1053577A/en
Expired 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)
  • Earth Drilling (AREA)
CA263,815A 1975-12-19 1976-10-20 Knockdown centralizer Expired CA1053577A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/642,264 US4011907A (en) 1975-12-19 1975-12-19 Knockdown centralizer

Publications (1)

Publication Number Publication Date
CA1053577A true CA1053577A (en) 1979-05-01

Family

ID=24575870

Family Applications (1)

Application Number Title Priority Date Filing Date
CA263,815A Expired CA1053577A (en) 1975-12-19 1976-10-20 Knockdown centralizer

Country Status (11)

Country Link
US (1) US4011907A (enExample)
JP (1) JPS5296901A (enExample)
AR (1) AR210378A1 (enExample)
BR (1) BR7608147A (enExample)
CA (1) CA1053577A (enExample)
DE (1) DE2656541A1 (enExample)
FR (1) FR2335690A1 (enExample)
GB (1) GB1564962A (enExample)
MX (1) MX143666A (enExample)
NL (1) NL7613365A (enExample)
NO (1) NO764279L (enExample)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133398A (en) * 1977-02-28 1979-01-09 Smith International, Inc. Collapsible spider for use in supporting casing during upward drilling operations
US4241789A (en) * 1978-05-12 1980-12-30 Grosch Gottlieb W Concrete wall casing with centralizers embedded therein
US4269269A (en) * 1979-05-14 1981-05-26 Halliburton Company Lock tab for centralizer end ring
US4422504A (en) * 1981-03-16 1983-12-27 Moore Boyd B Protective clamp assembly
US4520869A (en) * 1983-09-29 1985-06-04 Svenson Bert N Centralizer for well casings
GB2179079A (en) * 1985-08-15 1987-02-25 William Hunt Engineers Limited Well casing tools
US4651823A (en) * 1986-05-19 1987-03-24 Antelope Oil Tool & Mfg. Company Centralizer
US4875524A (en) * 1988-09-29 1989-10-24 Halliburton Company Casing centralizer
US4909322A (en) * 1989-04-26 1990-03-20 Davis-Lynch, Inc. Casing centralizer
US5143154A (en) * 1990-03-13 1992-09-01 Baker Hughes Incorporated Inflatable packing element
US5575333A (en) * 1995-06-07 1996-11-19 Weatherford U.S., Inc. Centralizer
US7182131B2 (en) * 2000-09-06 2007-02-27 Casetech International, Inc. Dual diameter and rotating centralizer/sub and method
US7156171B2 (en) * 2000-09-06 2007-01-02 Casetech International, Inc. Dual diameter and rotating centralizer/sub
RU2179670C1 (ru) * 2000-12-25 2002-02-20 Открытое акционерное общество "Акционерная нефтяная компания "Башнефть" Устройство для гашения крутильных колебаний
US6457519B1 (en) * 2001-02-20 2002-10-01 Antelope Oil Tool And Manufacturing Company, Inc. Expandable centralizer
CN102359350B (zh) * 2011-10-09 2013-09-18 中国海洋石油总公司 一种扶正器
USD930046S1 (en) * 2018-02-22 2021-09-07 Vulcan Completion Products Uk Limited Centralizer for centralizing tubing in a wellbore

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1801334A (en) * 1926-01-11 1931-04-21 Dalldorf Lloyd Tailpiece for well tools
US2248160A (en) * 1938-08-12 1941-07-08 Earl L Crawford Well apparatus
US2738019A (en) * 1951-05-22 1956-03-13 Atkinson Albert Edward Devices for centralizing casing in boreholes
US2727576A (en) * 1952-04-09 1955-12-20 Jesse E Hall Centralizers
US2728399A (en) * 1953-12-10 1955-12-27 Kluck Louis Floating spring type casing centralizer
US2944603A (en) * 1956-01-30 1960-07-12 Baker Oil Tools Inc Subsurface electric current generating apparatus
US3055432A (en) * 1960-06-23 1962-09-25 Baker Oil Tools Inc Well conduit centering devices

Also Published As

Publication number Publication date
NL7613365A (nl) 1977-06-21
US4011907A (en) 1977-03-15
FR2335690B1 (enExample) 1982-08-20
AR210378A1 (es) 1977-07-29
DE2656541A1 (de) 1977-06-23
MX143666A (es) 1981-06-22
FR2335690A1 (fr) 1977-07-15
GB1564962A (en) 1980-04-16
BR7608147A (pt) 1977-11-22
JPS5296901A (en) 1977-08-15
NO764279L (enExample) 1977-06-21

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