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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.:

US 10415319 B1

PDFFull Text
Expired
Date of Patent:
Sep. 17, 2019

Filed:

Mar. 12, 2014

Low surface friction drill bit body for use in wellbore formation

Applicant:

Halliburton Energy Services, Inc., Houston, TX (US);

Inventor:

Garrett T. Olsen, The Woodlands, TX (US);

Assignee:

Halliburton Energy Services, Inc., Houston, TX (US);

Attorney:

Baker Botts L.L.P.

Primary Examiner:

Cathleen R Hutchins

Assistant Examiner:

Yanick A Akaragwe

Int. Cl.
CPC ...
E21B 10/46 (2006.01); E21B 10/00 (2006.01); E21B 10/50 (2006.01); B33Y 10/00 (2015.01); B33Y 80/00 (2015.01); B22F 3/105 (2006.01); B22F 7/06 (2006.01); B28B 11/24 (2006.01); C04B 35/56 (2006.01); C04B 35/634 (2006.01); C04B 35/64 (2006.01); B22F 5/00 (2006.01);
U.S. Cl.
CPC ...
E21B 10/50 (2013.01); B22F 3/1055 (2013.01); B22F 7/06 (2013.01); B28B 11/243 (2013.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12); C04B 35/5626 (2013.01); C04B 35/63408 (2013.01); C04B 35/64 (2013.01); E21B 10/00 (2013.01); E21B 10/46 (2013.01); B22F 2005/001 (2013.01); B22F 2301/10 (2013.01); B22F 2301/15 (2013.01); B22F 2302/10 (2013.01); B22F 2302/45 (2013.01); C04B 2235/3847 (2013.01); C04B 2235/48 (2013.01); C04B 2235/661 (2013.01); C04B 2235/665 (2013.01);
Abstract

A low surface friction body for a drill bit includes a matrix drill bit body. The body includes a particulate phase having a friction-reducing additive, and a binding material that bonds the particulate phase using a suitable manufacturing process such as selective laser sintering. The particulate phase may include tungsten carbide, the friction-reducing additive may be polytetrafluoroethylene, and the binder material may be copper or cobalt. The friction-reducing additive is distributed throughout at least a portion of the drill bit body that includes the surface that will come into contact with drill cuttings and drilling fluid during operation. The molecular properties of the friction-reducing additive result in a drill bit body having a surface that is resistant to sticking even after enduring chipping and other types of wear.

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