The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 7086478 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 08, 2006

Filed:

Mar. 17, 2005
Applicants:

Neil A. A. Simpson, Aberdeen, GB;

David Haugen, League City, TX (US);

Inventors:

Neil A. A. Simpson, Aberdeen, GB;

David Haugen, League City, TX (US);

Assignee:

Weatherford/Lamb, Inc., Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 19/16 (2006.01); E21B 23/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention relates to methods and apparatus for expanding tubulars in a wellbore. In one aspect of the invention, an expansion tool with hydraulically actuated, radially expandable members is disposed on a string of coil tubing. In another aspect of the invention the apparatus is utilized to expand a tubular lining a lateral wellbore into contact with a window of a larger tubular lining a central wellbore.


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