Patent ID: 9169697
Filing Date: 2015-10-27
Classification: E21B

Abstract:
1. A downhole abrading tool for use in a well, the downhole abrading tool comprising: a housing; a cutting end disposed on a lower end of the housing, the cutting end having an identification tag that emits a signal; a detector for receiving the signal being emitted by the identification tag, the detector disposed in the housing at a location relative to the cutting end to enable the detector to receive the signal being emitted by the identification tag; and a relay module disposed in the housing and operatively associated with the detector for receiving a first communication from the detector regarding a first condition of the signal and transmitting the first communication to an operator located at the surface location, wherein a change in the first condition of the signal indicates wear on the cutting end; and wherein the change in the first condition of the signal comprises a lessening of strength of the signal.