DE2421356A1 - - Google Patents

Info

Publication number
DE2421356A1
DE2421356A1 DE19742421356 DE2421356A DE2421356A1 DE 2421356 A1 DE2421356 A1 DE 2421356A1 DE 19742421356 DE19742421356 DE 19742421356 DE 2421356 A DE2421356 A DE 2421356A DE 2421356 A1 DE2421356 A1 DE 2421356A1
Authority
DE
Germany
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.)
Granted
Application number
DE19742421356
Other versions
DE2421356B1 (de
DE2421356C2 (de
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 filed Critical
Priority to DE19742421356 priority Critical patent/DE2421356C2/de
Priority claimed from DE19742421356 external-priority patent/DE2421356C2/de
Publication of DE2421356B1 publication Critical patent/DE2421356B1/de
Publication of DE2421356A1 publication Critical patent/DE2421356A1/de
Application granted granted Critical
Publication of DE2421356C2 publication Critical patent/DE2421356C2/de
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
    • E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes

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)
  • Supports For Pipes And Cables (AREA)
DE19742421356 1974-05-03 Zentrierkorb für Innenrohre Expired DE2421356C2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19742421356 DE2421356C2 (de) 1974-05-03 Zentrierkorb für Innenrohre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742421356 DE2421356C2 (de) 1974-05-03 Zentrierkorb für Innenrohre

Publications (3)

Publication Number Publication Date
DE2421356B1 DE2421356B1 (de) 1975-09-11
DE2421356A1 true DE2421356A1 (de) 1975-09-11
DE2421356C2 DE2421356C2 (de) 1976-04-22

Family

ID=

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3311920A1 (de) * 1983-03-31 1984-10-04 Grillo-Werke Ag, 4100 Duisburg Verfahren zur herstellung von zinkpulver fuer alkalische batterien (v)
US4842081A (en) * 1986-04-02 1989-06-27 Societe Nationale Elf Aquitaine (Production) Simultaneous drilling and casing device
WO1996009459A1 (en) * 1994-09-24 1996-03-28 Weatherford/Lamb, Inc. Centralisers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3311920A1 (de) * 1983-03-31 1984-10-04 Grillo-Werke Ag, 4100 Duisburg Verfahren zur herstellung von zinkpulver fuer alkalische batterien (v)
US4842081A (en) * 1986-04-02 1989-06-27 Societe Nationale Elf Aquitaine (Production) Simultaneous drilling and casing device
WO1996009459A1 (en) * 1994-09-24 1996-03-28 Weatherford/Lamb, Inc. Centralisers

Also Published As

Publication number Publication date
DE2421356B1 (de) 1975-09-11

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977