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.:
Date of Patent:
Dec. 01, 2009
Filed:
May. 22, 2006
Applicants:
Mark W. Presslie, Aberdeenshire, GB;
William J. Hay, Aberdeen, GB;
Inventors:
Mark W. Presslie, Aberdeenshire, GB;
William J. Hay, Aberdeen, GB;
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 17/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A multi part centralizer can be secured quickly to tubular to be cemented and expanded in a deviated wellbore. The segments ratchet with respect to each other and are capable of holding the centralizer snug against the tubular for delivery downhole and cementing. After cementing the expansion of the tubular is not significantly resisted by the centralizer as its diameter increases with the expanded tubular below it. The end position after expansion is held due to the ratchet feature insuring the fixation of the centralizer as the cement sets.