Streamlined pocket design for PDC drill bits

Patent metadata

Field	Value
Publication number	US-9488012-B2
Application number	US-201314103184-A
Country	US
Kind code	B2
Filing date	Dec 11, 2013
Priority date	Dec 28, 2012
Publication date	Nov 8, 2016
Grant date	Nov 8, 2016

Abstract

A cutter pocket, a downhole tool formed with at least one cutter pocket, and a method for coupling a cutter to the cutter pocket is described herein. The cutter pocket is formed within at least one blade of the downhole tool and includes a pocket back fabricated from a first material, a first pocket side extending from one end of the pocket back to a leading edge of the downhole tool, and a second pocket side extending from an opposing end of the pocket back to the leading edge. The pocket back and the pocket sides define a cavity. A cutter is positioned and coupled at least partially within the cavity. The height of an upper surface of the first material of the pocket back ranges between thirty percent to sixty-five percent of the cutter girth.

First claim

I claim:

1. A downhole tool, comprising:
a body;
a plurality of blades extending from one end of the body, the plurality of blades forming a cutting surface, each blade comprising a leading edge section;
one or more cutter pockets formed within each blade, each cutter pocket comprising:
a pocket back fabricated from a first material;
a first pocket side extending from one end of the pocket back to the leading edge section and fabricated from the first material; and
a seco…

Assignees

• Varel Int Ind Lp

Inventors

• Thigpen Gary M

Classifications

• Y10T29/49826

  Cross-Sectional Technologies · mapped topic

• E21B10/633 Primary

  Fixed Constructions · mapped topic

• E21B10/54

  Fixed Constructions · mapped topic

• E21B10/62

  Fixed Constructions · mapped topic