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. 31, 2023

Filed:

Jul. 05, 2019
Applicant:

Smith International, Inc., Houston, TX (US);

Inventors:

Gary R. Portwood, Saline di Volterra, IT;

Simone Pallesi, Saline di Volterra, IT;

Alessio Cechi, Saline di Volterra, IT;

Alessandro Bertini, Saline di Volterra, IT;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 10/18 (2006.01); E21B 7/18 (2006.01); E21B 10/61 (2006.01); E21B 17/18 (2006.01);
U.S. Cl.
CPC ...
E21B 10/18 (2013.01); E21B 7/18 (2013.01); E21B 10/61 (2013.01); E21B 17/18 (2013.01);
Abstract

A drill bit includes a bit body with high and low fluid pressure bodies. The low-pressure bit body includes a fixed cutting structure, and the high-pressure bit body includes at least one high-pressure fluid channel and nozzle capable of withstanding fluid pressures greater than 40 kpsi (276 MPa). A bottomhole assembly includes a drill bit with a bit body having fixed cutter and fluid jetting portions. Low and high-pressure channels in the bit body exit in the fixed cutter and fluid jetting portions. A high-pressure nozzle is coupled to the fluid jetting portion and the high-pressure fluid channel, and a plurality of fixed cutting elements are coupled to the fixed cutter portion. A pressure intensifier is coupled to the drill bit and is configured to increase a pressure of a fluid supplied to the high-pressure fluid channel in the bit body.


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