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:
Jun. 26, 2012
Filed:
Jul. 07, 2011
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);
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);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough. Cutting elements and methods of use may be included. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element may be included. Differing abrasive material amount, characteristics, and size of cutting elements may be included. Telescoping casing sections and bits may be included. Embodiments may include: at least one gage section extending from the nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts.