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:
Aug. 30, 2011
Filed:
May. 29, 2008
Jack T. Oldham, Willis, TX (US);
L. Allen Sinor, Conroe, TX (US);
Eric E. Mcclain, Montgomery, 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, Willis, TX (US);
L. Allen Sinor, Conroe, TX (US);
Eric E. McClain, Montgomery, 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, is disclosed. Cutting elements and methods of use are disclosed. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element are disclosed. Differing abrasive material amount, characteristics, and size of cutting elements are disclosed. Telescoping casing sections and bits are disclosed. Aspects and embodiments are disclosed including: at least one gage section extending from a 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.