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:
Feb. 16, 2021
Filed:
Feb. 01, 2019
Applicant:
Ulterra Drilling Technologies, L.p., Fort Worth, TX (US);
Inventor:
Christopher M. Casad, Benbrook, TX (US);
Assignee:
ULTERRA DRILLING TECHNOLOGIES, L.P., Fort Worth, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/42 (2006.01); E21B 10/60 (2006.01); E21B 10/02 (2006.01); E21B 10/43 (2006.01); E21B 10/48 (2006.01);
U.S. Cl.
CPC ...
E21B 10/42 (2013.01); E21B 10/02 (2013.01); E21B 10/43 (2013.01); E21B 10/48 (2013.01); E21B 10/602 (2013.01);
Abstract
A drag bit includes a blade extending from the bit body and supporting inner cutters proximate the longitudinal axis and outer cutters spaced from the longitudinal axis. The inner cutters are rotationally offset from the outer cutters. During operation the inner cutters deposit cut material in a channel that is contiguous with a channel that receives material cut by the outer cutters. The cutters and the contiguous channels flush agglomerating material from the slots.