Investigating the development of a tri-cone drill bit wear monitoring system

三牙轮钻头磨损监测系统的开发研究

• 批准号: 396502-2010
• 负责人: Hassani, Faramarz
• 金额: $ 3.18万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=467639
• 关键词: Investigating; development; tri; cone; drill

Mining operations requiring hard rock blasthole drilling and deep-hole petroleum exploration often rely on the use of tri-cone rotary drill bits to accomplish their excavations efficiently and economically. Depending on the severity of in-situ rock conditions, the usual behaviour of tricone bit performance tends to see a rise to a plateau of stable performance until a critical point is reached where the penetration rate - for constant levels of applied pull-down pressure and rotation speed - will gradually begin to decline. Associated with a reduction in penetration rate are increased vibration(s) and torque reflecting a combination of bit structural failures and greater resistance to rotation in the hole.

需要钻硬岩炮眼和深孔石油勘探的采矿作业往往依赖于使用三锥旋转钻头来高效经济地完成其挖掘。根据原位岩石条件的严重程度，三牙轮钻头的性能通常会上升到稳定的平台状态，直到达到一个临界点，在这个临界点上，钻速（施加恒定的下拉压力和旋转速度）将逐渐开始下降。随着钻速的降低，振动和扭矩的增加反映了钻头结构失效和井内旋转阻力的增加。