Patent · US Active

Matrix drill bits and method of manufacture

US7784381B2 · kind B2 · utility

14Cited by

23References

21Claims

0Family size

Assignee

Halliburton Energy Services, Inc. · US

Inventors

Ram L. Ladi · Tomball, US
Gary E. Weaver · Conroe, US
David A. Brown · Carp, CA

Key dates

Filing date	Jan 18, 2008
Grant date	Aug 31, 2010
Priority date	—
Expiry date	Jan 18, 2028

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22F2005/002
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A matrix drill bit and method of manufacturing a matrix bit body from a composite of matrix materials is disclosed. Two or more different types of matrix materials may be used to form a composite matrix bit body. A first matrix material may be selected to provide optimum fracture resistance (toughness) and optimum erosion, abrasion and wear resistance for portions of a matrix bit body such as cutter sockets, cutting structures, blades, junk slots and other portions of the bit body associated with engaging and removing formation materials. A second matrix material may be selected to provide desired infiltration of hot, liquid binder material with the first matrix material to form a solid, coherent, composite matrix bit body.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.