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:
Oct. 02, 2007
Filed:
Mar. 12, 2004
Kenneth L. Smith, Katy, TX (US);
Edward T. Cousins, Richmond, TX (US);
Marc E. Leveque, Sugar Land, TX (US);
Gary J. Collins, Richmond, TX (US);
Kenneth L. Smith, Katy, TX (US);
Edward T. Cousins, Richmond, TX (US);
Marc E. Leveque, Sugar Land, TX (US);
Gary J. Collins, Richmond, TX (US);
ConocoPhillips Company, Houston, TX (US);
Abstract
A rotatable drilling shoe attachable to a section of casing that allows for drilling and casing of a well bore in a single trip. The drilling shoe includes a fixed section and a rotatable section that has a drillable bit attached thereto. The drilling shoe further includes a mechanism for inhibiting rotation of the rotatable section after the casing is cemented into place so that the drillable bit can be drilled out by a subsequent drilling operation.