Patent ID: 9222350
Filing Date: 2015-12-29
Classification: E21B,Y10T

Abstract:
1. A cutting element for an earth-boring drilling tool, comprising: a substrate; a superhard layer bonded to the substrate along an interface, the superhard layer comprising sintered polycrystalline diamond having diamond grains bonded to one another and separated by interstitial regions, wherein a portion of the interstitial regions are leached of catalyst material and filled with a non-catalyst material that forms a thermoelectric element within the sintered polycrystalline diamond, the superhard layer having a working surface opposite the interface and an outer peripheral surface extending between the working surface and the interface; and a sensing element comprising a connector that is coupled to the thermoelectric element within the superhard layer, the connector and the thermoelectric element within the superhard layer forming the sensing element that is integral to the superhard layer, the connector transferring output signals from the sensing element for remote monitoring of a condition of the superhard layer.