Apparatuses and methods for at bit resistivity measurements for an earth boring drilling tool

摘要

pA cutting element for an earth boring drilling tool comprises a cutting body having a cutting surface thereon and a sensor coupled with the cutting surface the sensor configured to determine resistivity of a contacting formation. An earth boring drilling tool comprises a bit body and an instrumented cutting element coupled with the bit body. The cutting element includes a cutting body having a cutting surface thereon and at least one sensor located proximate the cutting surface. The at least one sensor is oriented and configured to determine resistivity of a contacting formation. A method of determining resistivity of a subterranean formation during a drilling operation comprises energizing a sensor of an instrumented cutting element of a drill bit sensing a return signal flowing on or through the subterranean formation through the instrumented cutting element and determining a resistivity of the subterranean formation based at least in part on the return signal./p