Cutting elements including polycrystalline diamond compacts for earth-boring tools

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United States of America Patent

PATENT NO 9849561
SERIAL NO

14466073

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Abstract

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Methods of forming a polycrystalline diamond compact for use in an earth-boring tool include forming a body of polycrystalline diamond material including a first material disposed in interstitial spaces between inter-bonded diamond crystals in the body, removing the first material from interstitial spaces in a portion of the body, selecting a second material promoting a higher rate of degradation of the polycrystalline diamond compact than the first material under similar elevated temperature conditions and providing the second material in interstitial spaces in the portion of the body. Methods of drilling include engaging at least one cutter with a formation and wearing a second region of polycrystalline diamond material comprising a second material faster than the first region of polycrystalline diamond material comprising a first material. Polycrystalline diamond compacts and earth-boring tools including such compacts.

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Patent Owner(s)

Patent OwnerAddress
BAKER HUGHES INCORPORATEDHOUSTON TX

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
DiGiovanni, Anthony A Houston, US 132 2037
Goudemond, Iain P Gauteng, ZA 2 42

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