Tri-cone rotary drill bit wear monitoring, in-situ geology recognition, vibration analysis and control

研究的重点是钻头磨损，钻头-岩石界面，以及这两个变量如何影响整个钻井系统的性能。三牙轮旋转钻头是一种消耗品，因此，在其部件寿命期间将逐渐磨损，直到发生钻头失效。随着钻头从新的过渡到完全磨损，钻井系统的最佳设定点也将过渡。此外，不同的现场地质进一步影响最佳设定点。低效钻井可能导致钻井系统故障（相关的安全、操作和财务问题），并增加下游成本（包括额外的能源、操作和维护需求）。该研究将结合在不同地质条件下的几个矿山进行的现场测试和实验室工作，以研究钻头磨损现象、钻头-岩石界面和最佳钻井系统设定点。在现场收集的随钻数据将用于支持基于实验室的钻头磨损、原位地质、钻井优化和钻井控制系统的建模和模拟。

The research focuses on drill bit wear, the bit-rock interface, and how both of these variables affect the performance of the overall drilling system. A tri-cone rotary drill bit is a consumable and, as such, will gradually wear over the course of its component life until bit failure occurs. As the bit transitions from new to completely worn, the drilling system's optimal set-points will transition also. Additionally, varying in-situ geology further affects the optimal set-points. Inefficient drilling can cause failure of the drill system (with associated safety, operational and financial concerns) and added downstream costs (including additional energy, operational and maintenance needs). The study will use a combination of on-site testing at several mines, in differing geology and laboratory work to study the drill bit wear phenomenon, the bit-rock interface and optimal drill system set-points. Monitoring-while-drilling data gathered in the field will be used to support laboratory based modeling and simulation of bit wear, in-situ geology, drilling optimization and drill control systems.