| 摘要 |
A hybrid drill bit is modeled, simulated, designed, optimized, and displayed. The hybrid drill is modeled based on input bit design parameters. The modeled hybrid drill bit is then simulated as drilling an earth formation, where at least a portion of the simulation may be graphically displayed so as to allow a user to adjust one or more parameters of the hybrid drill bit, drill string, and/or earth formation. Formation interactions between a fixed cutting element of the hybrid drill bit and the earth formation and between a roller cone cutting element of the hybrid drill bit and the earth formation are determined based on models developed using, for example, laboratory-based formation interaction tests. Simulation of the modeled hybrid drill bit may be selectively repeated so as to allow a user to adjust one or more design parameters of the hybrid drill bit to affect a simulated drilling characteristic. Such designing of the hybrid drill bit may be performed until one or more bit design parameters are accepted as being optimized. |
