CA2578879C - Boitier a cintrage variable avec deviation - Google Patents

Boitier a cintrage variable avec deviation Download PDF

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Publication number
CA2578879C
CA2578879C CA2578879A CA2578879A CA2578879C CA 2578879 C CA2578879 C CA 2578879C CA 2578879 A CA2578879 A CA 2578879A CA 2578879 A CA2578879 A CA 2578879A CA 2578879 C CA2578879 C CA 2578879C
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CA
Canada
Prior art keywords
crown
adjustable
housing
stator connector
offset point
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.)
Active
Application number
CA2578879A
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English (en)
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CA2578879A1 (fr
Inventor
Nicu Cioceanu
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to CA2578879A priority Critical patent/CA2578879C/fr
Publication of CA2578879A1 publication Critical patent/CA2578879A1/fr
Application granted granted Critical
Publication of CA2578879C publication Critical patent/CA2578879C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/067—Deflecting the direction of boreholes with means for locking sections of a pipe or of a guide for a shaft in angular relation, e.g. adjustable bent sub

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

Linvention concerne un boîtier à cintrage variable comprenant un élément de liaison de stator, un boîtier réglable ayant une première déviation axiale, un premier point de décalage et une pluralité de dents espacées, une couronne qui est placée entre lélément de liaison de stator et le boîtier réglable, et ayant une pluralité de dents espacées qui sont complémentaires aux dents du boîtier réglable, un moyen de mettre en prise de manière rotative la couronne à lélément de liaison de stator; et un mandrin à fentes placé à lintérieur de la couronne et ayant une connexion filetée à lélément de liaison de stator à une extrémité, et une connexion filetée au boîtier réglable à lautre extrémité. Le mandrin à fentes possède une seconde déviation axiale et un second point de décalage. Le premier point de décalage et le second point de décalage sont alignés lorsque le boîtier à cintrage variable est assemblé, créant un point unique de décalage.
CA2578879A 2007-02-16 2007-02-16 Boitier a cintrage variable avec deviation Active CA2578879C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2578879A CA2578879C (fr) 2007-02-16 2007-02-16 Boitier a cintrage variable avec deviation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2578879A CA2578879C (fr) 2007-02-16 2007-02-16 Boitier a cintrage variable avec deviation

Publications (2)

Publication Number Publication Date
CA2578879A1 CA2578879A1 (fr) 2008-08-16
CA2578879C true CA2578879C (fr) 2018-11-20

Family

ID=39687882

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2578879A Active CA2578879C (fr) 2007-02-16 2007-02-16 Boitier a cintrage variable avec deviation

Country Status (1)

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CA (1) CA2578879C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9347269B2 (en) 2013-03-05 2016-05-24 National Oilwell Varco, L.P. Adjustable bend assembly for a downhole motor

Also Published As

Publication number Publication date
CA2578879A1 (fr) 2008-08-16

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Legal Events

Date Code Title Description
EEER Examination request