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.

Date of Patent:
Jan. 07, 2020

Filed:

Apr. 13, 2015
Applicant:

Schlumberger Technology Corporation, Sugar Land, TX (US);

Inventors:

Yuanbo Lin, Houston, TX (US);

Youhe Zhang, Spring, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/32 (2006.01); E21B 10/26 (2006.01); E21B 10/43 (2006.01); E21B 7/28 (2006.01);
U.S. Cl.
CPC ...
E21B 10/32 (2013.01); E21B 7/28 (2013.01); E21B 10/43 (2013.01);
Abstract

A downhole cutting apparatus includes a cutter block having a longitudinal blade. The longitudinal blade includes a first cutting edge adjacent a second cutting edge, and the first cutting edge and the second cutting edge are both either underreaming cutting edges, backreaming cutting edges, or a combination of underreaming and backreaming cutting edges.


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