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。三牙轮牙轮钻头是一种消耗品，因此在其部件寿命过程中会逐渐磨损，直到发生钻头故障。随着钻头从新钻头过渡到完全磨损，钻井系统的最佳设定点也将过渡。此外，不同的现场地质还会进一步影响最佳设定点。低效率的钻井可能导致钻井系统故障(伴随着相关的安全、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)。这项研究将结合在不同地质和实验室工作中的几个矿山的现场测试来研究钻头磨损现象、钻头-岩石界面和最佳钻探系统设置点。现场收集的随钻监测数据将用于支持基于实验室的钻头磨损、现场地质、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.