DE69524109T2 - centering - Google Patents

centering

Info

Publication number
DE69524109T2
DE69524109T2 DE69524109T DE69524109T DE69524109T2 DE 69524109 T2 DE69524109 T2 DE 69524109T2 DE 69524109 T DE69524109 T DE 69524109T DE 69524109 T DE69524109 T DE 69524109T DE 69524109 T2 DE69524109 T2 DE 69524109T2
Authority
DE
Germany
Prior art keywords
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.)
Expired - Fee Related
Application number
DE69524109T
Other languages
German (de)
Other versions
DE69524109D1 (en
Inventor
Arnold Stokka
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.)
Weatherford Lamb Inc
Original Assignee
Weatherford Lamb Inc
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 GB9419313A external-priority patent/GB9419313D0/en
Application filed by Weatherford Lamb Inc filed Critical Weatherford Lamb Inc
Publication of DE69524109D1 publication Critical patent/DE69524109D1/en
Application granted granted Critical
Publication of DE69524109T2 publication Critical patent/DE69524109T2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Casings For Electric Apparatus (AREA)
  • Earth Drilling (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Stackable Containers (AREA)
DE69524109T 1994-09-24 1995-09-25 centering Expired - Fee Related DE69524109T2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9419313A GB9419313D0 (en) 1994-09-24 1994-09-24 Centralisers
US08/388,603 US5566754A (en) 1994-09-24 1995-02-14 Centralisers
PCT/GB1995/002272 WO1996009459A1 (en) 1994-09-24 1995-09-25 Centralisers

Publications (2)

Publication Number Publication Date
DE69524109D1 DE69524109D1 (en) 2002-01-03
DE69524109T2 true DE69524109T2 (en) 2002-06-06

Family

ID=26305686

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69524109T Expired - Fee Related DE69524109T2 (en) 1994-09-24 1995-09-25 centering

Country Status (7)

Country Link
EP (1) EP0782660B1 (en)
CN (1) CN1159848A (en)
AU (1) AU691665B2 (en)
BR (1) BR9509169A (en)
CA (1) CA2198619C (en)
DE (1) DE69524109T2 (en)
WO (1) WO1996009459A1 (en)

Families Citing this family (6)

* 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
GB9715006D0 (en) * 1997-07-15 1997-09-24 Weatherford Lamb Centralizer
GB2331534B (en) * 1998-02-23 2000-01-19 Weatherford Lamb Centralizer
CA2322631C (en) 1998-03-05 2007-09-18 Austoil Technology Limited An axle, a friction reducing fitting and an axle installation method
WO2000043629A1 (en) 1999-01-22 2000-07-27 Weatherford/Lamb, Inc. Friction reducing tool and method for its use in a wellbore
EP4107358A4 (en) * 2020-02-18 2024-04-03 Kwik-Zip Pty Ltd A spacer segment and a spacer

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1997880A (en) * 1932-03-25 1935-04-16 Louis T Watry Guide coupling
US2389906A (en) * 1944-02-03 1945-11-27 Willis J Heard Rod guide
US2602512A (en) * 1949-02-12 1952-07-08 Baker Oil Tools Inc Casing centering device
US2622684A (en) * 1950-01-26 1952-12-23 Kluck Louis Rib type casing centralizer
GB682362A (en) * 1950-12-18 1952-11-05 Baker Oil Tools Inc A centring device for centring conduits and the like in well bores
US3666013A (en) * 1969-12-30 1972-05-30 Texaco Inc Reinforced concrete stabilizer for an insulated tubing string in a secondary recovery steam stimulation operation
US3762472A (en) * 1972-07-24 1973-10-02 Gem Oil Tool Co Casing stand-off band for use during the running and cementing of casing in wellbores
CA1231642A (en) * 1985-02-22 1988-01-19 Raymond F. Mikolajczyk Casing centralizer/stabilizer
US5377751A (en) * 1992-01-29 1995-01-03 Rickert Precision Industries Apparatus and method for centralizing downhole pipe and blast joints

Also Published As

Publication number Publication date
CA2198619C (en) 2005-08-02
DE69524109D1 (en) 2002-01-03
CA2198619A1 (en) 1996-03-28
AU691665B2 (en) 1998-05-21
EP0782660A1 (en) 1997-07-09
WO1996009459A1 (en) 1996-03-28
AU3570595A (en) 1996-04-09
EP0782660B1 (en) 2001-11-21
CN1159848A (en) 1997-09-17
BR9509169A (en) 1997-09-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee