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:
Jan. 19, 2016

Filed:

May. 25, 2011
Applicants:

Henry Eugene Rogers, Duncan, OK (US);

Steven Lee Holden, Fletcher, OK (US);

Frank V. Acosta, Duncan, OK (US);

Inventors:

Henry Eugene Rogers, Duncan, OK (US);

Steven Lee Holden, Fletcher, OK (US);

Frank V. Acosta, Duncan, OK (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/12 (2006.01); E21B 33/128 (2006.01); E21B 33/129 (2006.01);
U.S. Cl.
CPC ...
E21B 33/12 (2013.01); E21B 33/128 (2013.01); E21B 33/1293 (2013.01);
Abstract

An apparatus comprising a first casing string comprising one or more profiled seats furrowed into the first casing string's inner casing wall, a second casing string comprising an upper casing joint, a lower casing joint, and a tension-set external mechanical casing (EMC) packer positioned between the upper casing joint and the lower casing joint, wherein the tension-set EMC packer comprises a mandrel that is attached to the upper casing joint and to the lower casing joint, wherein the second casing string is disposed within the first casing string such that a casing casing annulus (CCA) is formed between the first casing string's inside diameter (ID) and the second casing string's outside diameter (OD), and wherein the recessed seats are positioned below the tension-set EMC packer prior to any engagement of the tension-set EMC packer with the first casing string.


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