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. 16, 2011
Filed:
Dec. 03, 2007
Steven R. Radford, The Woodlands, TX (US);
Scott S. Shu, Spring, TX (US);
Les T. Shale, Willis, TX (US);
Mark E. Morris, Coraopolis, PA (US);
Mark R. Kizziar, Lafayette, LA (US);
Anton F. Zahradnik, Sugarland, TX (US);
Steven R. Radford, The Woodlands, TX (US);
Scott S. Shu, Spring, TX (US);
Les T. Shale, Willis, TX (US);
Mark E. Morris, Coraopolis, PA (US);
Mark R. Kizziar, Lafayette, LA (US);
Anton F. Zahradnik, Sugarland, TX (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
Expandable reamer tools include an outer body, a fluid passageway extending through the outer body, and at least one blade configured to slide relative to the outer body between a retracted position and an expanded position in a direction oriented at an acute angle of less than ninety degrees (90°) to a longitudinal axis of the outer body. In some embodiments, the tools may include a moveable inner sleeve member configured to selectively allow hydraulic fluid pressure within the fluid passageway to act directly on the at least one blade. Methods for enlarging a borehole using such expandable reamer tools and methods for removing such expandable reamer tools from a borehole are also disclosed.