Patent ID: 9097074
Filing Date: 2015-08-04
Classification: E21B

Abstract:
1. A polycrystalline diamond composite comprising: a polycrystalline diamond body having a plurality of discrete regions that are dispersed within a continuous polycrystalline diamond second region that extends throughout the body and that insulates the discrete regions from one another, wherein the plurality of discrete regions are formed from polycrystalline diamond, have an average size of about 100 to 250 microns, and have a diamond density greater than that of a diamond density of the surrounding continuous polycrystalline diamond second region, and wherein the continuous polycrystalline diamond second region comprises a matrix formed of intercrystalline bonded together diamond crystals that extends continuously throughout the second region, and wherein the second region further comprises interstitial regions disposed within the matrix that are filled with a catalyst material used to sinter the second region at high pressure/high temperature conditions, and wherein the plurality of discrete regions exist separately from the interstitial regions.