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:
Mar. 08, 2011
Filed:
Dec. 03, 2007
Steven R. Radford, The Woodlands, TX (US);
Scott Shiquiang Shu, Spring, TX (US);
Anton F. Zahradnik, Sugarland, TX (US);
J. Lindley Baugh, College Station, TX (US);
Steven R. Radford, The Woodlands, TX (US);
Scott Shiquiang Shu, Spring, TX (US);
Anton F. Zahradnik, Sugarland, TX (US);
J. Lindley Baugh, College Station, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
An expandable reamer apparatus for drilling a subterranean formation includes a tubular body, one or more blades, each blade positionally coupled to a sloped track of the tubular body, a push sleeve and a drilling fluid flow path extending through an inner bore of the tubular body for conducting drilling fluid therethrough. Each of the one or more blades includes at least one cutting element configured to remove material from a subterranean formation during reaming. The push sleeve is disposed in the inner bore of the tubular body and coupled to each of the one or more blades so as effect axial movement thereof along the track to an extended position responsive to exposure to a force or pressure of drilling fluid in the flow path of the inner bore.