ABRASIVE WEAR-RESISTANT MATERIALS AND EARTH-BORING TOOLS COMPRISING SUCH MATERIALS

An abrasive wear-resistant material includes a matrix and sintered and cast tungsten carbide pellets. A device for use in drilling subterranean formations includes a first structure secured to a second structure with bonding material. An abrasive wear-resistant material covers the bonding material....

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Bibliographic Details
Main Author OVERSTREET JAMES L
Format Patent
LanguageEnglish
Published 25.09.2014
Subjects
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
GRINDING
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
PERFORMING OPERATIONS
POLISHING
TOOLS FOR GRINDING, BUFFING, OR SHARPENING
TRANSPORTING
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Summary:An abrasive wear-resistant material includes a matrix and sintered and cast tungsten carbide pellets. A device for use in drilling subterranean formations includes a first structure secured to a second structure with bonding material. An abrasive wear-resistant material covers the bonding material. The first structure may include a drill bit body and the second structure may include a cutting element. A method for applying an abrasive wear-resistant material to a drill bit includes providing a bit, mixing sintered and cast tungsten carbide pellets in a matrix material to provide a pre-application material, heating the pre-application material to melt the matrix material, applying the pre-application material to the bit, and solidifying the material. A method for securing a cutting element to a bit body includes providing an abrasive wear-resistant material to a surface of a drill bit that covers a brazing alloy disposed between the cutting element and the bit body.
Bibliography:Application Number: US201414296129