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.

Date of Patent:
Oct. 27, 2015

Filed:

Mar. 30, 2012
Applicants:

Henry Eugene Rogers, Duncan, OK (US);

David D. Szarka, Duncan, OK (US);

Derrick Eugene Strickland, Yukon, OK (US);

Inventors:

Henry Eugene Rogers, Duncan, OK (US);

David D. Szarka, Duncan, OK (US);

Derrick Eugene Strickland, Yukon, OK (US);

Assignee:
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 29/10 (2006.01); E21B 43/10 (2006.01); E21B 17/10 (2006.01);
U.S. Cl.
CPC ...
E21B 43/105 (2013.01); E21B 17/1078 (2013.01); E21B 29/10 (2013.01);
Abstract

Expansion tools used to centralize a casing-casing annulus in a wellbore. Providing an elongate body having a first force multiplier case coupled to an expansion tool case. A piston may be arranged within the first force multiplier case and configured to translate axially therein. A ram may be arranged within the expansion tool case, the ram being coupled to the piston and configured to translate axially within the expansion tool case in response to a force applied by the piston. One or more lug assemblies are arranged within the expansion tool case and configured to radially expand once engaged by the ram as the ram translates axially.


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