Matrix powder for matrix body fixed cutter bits

A drill bit is disclosed that has a bit body with a plurality of blades extending radially therefrom and at least one cutting element for engaging a formation disposed on at least one of the plurality of blades. At least a portion of the plurality of blades has a first matrix region made of a plural...

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Bibliographische Detailangaben
Hauptverfasser:	GREGORY T LOCKWOOD, ALAN W LOCKSTEDT, XIAYANG SHENG
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CASTING CHEMISTRY COMPOUNDS THEREOF EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FERROUS OR NON-FERROUS ALLOYS FIXED CONSTRUCTIONS INORGANIC CHEMISTRY MAKING METALLIC POWDER MANUFACTURE OF ARTICLES FROM METALLIC POWDER METALLURGY MINING NON-METALLIC ELEMENTS OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS POWDER METALLURGY TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WORKING METALLIC POWDER
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Beschreibung
Zusammenfassung:	A drill bit is disclosed that has a bit body with a plurality of blades extending radially therefrom and at least one cutting element for engaging a formation disposed on at least one of the plurality of blades. At least a portion of the plurality of blades has a first matrix region made of a plurality of first carbide particles separated by a first binder phase, wherein the plurality of first carbide particles have a mean free path of at least 40 microns.