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:
May. 22, 2018
Filed:
Aug. 12, 2015
Applicant:
National Oilwell Dht, L.p., Houston, TX (US);
Inventors:
Ali Akbar Moslemi, The Woodlands, TX (US);
Jiinjen Albert Sue, The Woodlands, TX (US);
Assignee:
National Oilwell DHT, L.P., Houston, TX (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 10/42 (2006.01); E21B 10/60 (2006.01); E21B 10/61 (2006.01);
U.S. Cl.
CPC ...
E21B 10/602 (2013.01); E21B 10/42 (2013.01); E21B 10/61 (2013.01); E21B 2010/607 (2013.01);
Abstract
A drill bit comprises a bit body having a body face. A plurality of fixed blades extends from the bit body. Each of the plurality of fixed blades has a leading face and a trailing face. A plurality of nozzles is disposed on the body face to flow drilling fluid out of the bit body. A plurality of flow guides direct a portion of the drilling fluid away from the bit body. Each of the plurality of flow guides extends longitudinally from the body face, and along the leading face of one of the plurality of fixed blades.