Conley Rose, P.C.
Downhole drill bit with coated cutting element
A coating for a diamond table of a cutting element is described. The coating is employed to fill a plurality of voids left by the manufacturing process that compromise the integrity of the cutting element and the associated downhole tooling. The coating may comprise diamond nanoparticles in a metal matrix and may be used with or without a binder layer applied directly to the diamond table, the coating may alternatively be a pure diamond film coating, and may be employed to fill voids left by the manufacturing process.
NATIONAL OILWELL DHT, L.P.
C C C E C C C C
C23C C23C C23C E21B C23C C23C C23C C23C
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Wei Rajagopala N. Russell C. Anil
Liu Pillai Gilleylen Kumar