Rotary tool with thermally stable diamond
AssigneeSchlumberger Technology Corporation
InventorsYahua Bao, J. Daniel Belnap, Francis E. Leany, Ronald B. Crockett, Dwain Norris, Anatoliy Garan
Life of this patent
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Abstract
A tool for removing material includes a body, an ultrahard insert, and a matrix. The body has a forward portion, an opposing rear portion, and a longitudinal axis therebetween. The ultrahard insert includes an ultrahard material, and the ultrahard insert is mounted to and contacts the body proximate the forward portion. The matrix contacts the body and the ultrahard insert. The matrix is mechanically interlocked with the body and at least a portion of the matrix is positioned circumferentially around at least a portion of the forward portion of the body.
Claims18
A tool for removing material, the tool comprising:
- a body having a forward portion and an opposing rear portion, the body having at least one channel extending into the body, at least a portion of the at least one channel being surrounded by the body;
- an ultrahard insert including an ultrahard material, the ultrahard insert positioned proximate the forward portion;
- and
- a matrix contacting the body and the ultrahard insert, the matrix being mechanically interlocked with the body and at least a portion of the matrix being positioned circumferentially around at least a portion of the forward portion of the body, at least a portion of the matrix being positioned in the at least one channel, wherein the at least one channel is oriented from an outer surface of the forward portion radially inward toward a longitudinal axis of the tool.
A system for removing material, the system comprising:
- a degradation tool configured to degrade material;
- and
- a plurality of tools selectively connectable to the degradation tool, at least one tool of the plurality of tools including:
- a body having a forward portion and an opposing rear portion, the forward portion including a forward face, the body having at least one channel extending into the body;
- an ultrahard insert including an ultrahard material, the ultrahard insert positioned proximate the forward portion and in contact with the forward face of the body;
- and
- a matrix contacting the body and the ultrahard insert, the matrix being mechanically interlocked with the body and at least a portion of the matrix being connected to the ultrahard insert, wherein at least a portion of the matrix is positioned in the at least one channel, and wherein the at least one channel is oriented from an outer surface of the forward portion radially inward toward a longitudinal axis of the tool.
A method of manufacturing a tool, the method comprising:
- forming a body with a forward portion including at least one mechanical interlocking feature in the body, and at least one channel, wherein the at least one channel is oriented from an outer surface of the forward portion radially inward toward a longitudinal axis of the tool;
- positioning an ultrahard insert in contact with the forward portion of the body;
- filling at least a first space in the at least one mechanical interlocking feature in the body and a second space outside the body with a matrix precursor, such that at least a portion of the matrix precursor is positioned in the at least one channel;
- and
- curing the matrix precursor at a curing temperature less than 2,200° F. to form a matrix adjacent the ultrahard insert and outside the body.
Dependencies are inferred from the claim text.