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.

需要进行硬岩爆破和深孔石油勘探的采矿作业往往依靠三牙轮钻头来高效、经济地完成开挖。根据现场岩石条件的严重程度，三牙轮钻头的通常性能往往会上升到稳定性能的平台，直到达到临界点为止，在该临界点上，机械钻速--施加恒定水平的下拉压力和转速--将逐渐下降。与机械钻速降低相关的是振动(S)和扭矩增加，这反映了钻头结构故障和井眼对旋转的更大阻力。