Patent ID: 9181792
Filing Date: 2015-11-10
Classification: E21B

Abstract:
1. A method, comprising: sending drilling parameter values from one or more sensors to a communication component, the drilling parameter values related to operation of a drilling rig and comprising at least a force on a drill bit, a rotational speed of a drilling feature, and a torque applied by the drilling feature; sending a drilling performance value from the one or more sensors to the communication component, the drilling parameter values comprising a value indicative of drilling progression; calculating an energy value that is linearly related to the drilling parameter values and proportional to the drilling performance value with a processor; determining, by the processor, a deviation of the energy value from a desired energy value at the onset of a drilling issue; identifying, by the processor, one of the drilling parameter values that significantly correlates with the deviation of the energy value; determining, by the processor, using statistical analysis, and outputting an adjustment to the one of the drilling parameter values; adjusting, by the processor, the one of the drilling parameter values such that, when the adjustment is made, the energy value approaches the desired energy value.