Patent ID: 8854373

Claim:
A method for presenting drilling information comprising: presenting a display including a graph having a first axis and a second axis, the first axis representing a rate of penetration (ROP) of a drill bit into a borehole and the second axis representing a mechanical specific energy (MSE) of a drilling system that includes the drill bit; plotting time based or foot based data with a computing device for one or more drilling runs on the graph; and overlaying the graph with lines of constant power; wherein MSE is equal to work expended per unit volume of rock removed during drilling; and wherein MSE is defined by the following relationship: MSE = 13.33 ⁢ μ ⁢ ⁢ WN D · ROP where μ is the coefficient between an end of the drill string and the rock, W is the weight on bit, N is the rotations per minute of the drill string, and D is the diameter of the borehole.