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. 30, 2012

Filed:

Jul. 07, 2011
Applicants:

Jack T. Oldham, Conroe, TX (US);

L. Allen Sinor, Conroe, TX (US);

Eric E. Mcclain, Spring, TX (US);

Robert A. Laing, Montgomery, TX (US);

Evan C. Turner, The Woodlands, TX (US);

Mark W. Dykstra, Kingwood, TX (US);

Eric C. Sullivan, Houston, TX (US);

Inventors:

Jack T. Oldham, Conroe, TX (US);

L. Allen Sinor, Conroe, TX (US);

Eric E. McClain, Spring, TX (US);

Robert A. Laing, Montgomery, TX (US);

Evan C. Turner, The Woodlands, TX (US);

Mark W. Dykstra, Kingwood, TX (US);

Eric C. Sullivan, Houston, TX (US);

Assignee:

Baker Hughes Incorporated, Houston, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/14 (2006.01); E21B 10/26 (2006.01); E21B 7/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

Casing shoes comprise a nose portion having an inner profile and an outer profile. At least one cutting structure is on the outer profile. A stem section extends longitudinally from the nose portion. At least one of a float valve mechanism, a cementing stage tool, a float collar mechanism, and a landing collar structure is disposed within the stem section. Methods of installing sections of casing within wellbores comprise advancing the at least one section of casing into contact with subterranean formation material with a casing shoe attached thereto. At least one of a float valve mechanism, a cementing stage tool, a float collar mechanism, and a landing collar structure is carried within the casing shoe into the wellbore. The wellbore is drilled or reamed using at least one cutting structure on the casing shoe as the at least one section of casing is advanced into the wellbore.


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