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:
Dec. 28, 2021
Filed:
Apr. 24, 2018
Applicant:
Smith International, Inc., Houston, TX (US);
Inventors:
Michael George Azar, The Woodlands, TX (US);
Geoffrey Charles Downton, Stonehouse, GB;
Edward George Parkin, Stonehouse, GB;
Assignee:
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/26 (2006.01); E21B 10/43 (2006.01); E21B 17/10 (2006.01); E21B 7/06 (2006.01); E21B 47/00 (2012.01);
U.S. Cl.
CPC ...
E21B 10/26 (2013.01); E21B 7/061 (2013.01); E21B 10/43 (2013.01); E21B 17/1078 (2013.01); E21B 47/00 (2013.01);
Abstract
A downhole tool includes at least a pilot section, a first expansion section, and a second expansion section. The pilot section has a plurality of cutting elements to cut a pilot hole. Each of the expansion sections has a plurality of cutting elements to successively expand the pilot hole to achieve a final wellbore radius. The pilot section, first expansion section, and second expansion section each have one or more stabilizer pads on respective gages to stabilize the downhole tool during wellbore creation.