雷克角度优化,以获得平衡的效率和耐久性,在PDC切割机中切割花岩通过红外热动力学和碎片化机制的相互作用
Xiangjiang He1, Bin Zheng2, Zhecheng Luo1
1School of Intelligent Manufacturing, Panzhihua University, Panzhihua, 617000, China.
Scientific reports
|December 30, 2025
概括
研究人员发现,红外温度监测可以揭示花岩.
科学领域:
- 地质技术工程 地质技术工程
- 材料科学 材料科学 材料科学
- 岩石机械学 岩石机械学
背景情况:
- 深度钻井操作依赖于与岩石相互作用的聚晶钻石紧型 (PDC) 切割机.
- 了解这种相互作用对于优化花岩破碎效率和切割器寿命至关重要.
- 现有的方法缺乏切割过程中对岩石破裂机制的实时洞察力.
研究的目的:
- 调查红外辐射特征与在单牙切割过程中花岩机械故障之间的相关性.
- 分析不同角对温度,碎片化和切削力的影响.
- 建立红外热信号作为岩石断裂状态的实时指示器.
主要方法:
- 使用了改进的造型测试机和高精度红外热成像仪.
- 监测PDC切割机与花岩之间的动态接触过程,在15°至30°的角下进行.
- 收集了切削力和红外辐射温度的同时数据.
主要成果:
- 接触时红外温度显著增加,从26.30°C上升到91.46°C,随着角从15°增加到30°.
- 石岩的碎片化发生在三个阶段:能量积累,混合故障和卸载.
- 红外温度波动与岩石压缩-断裂周期和切割力变化有很强的相关性.
- 较高的角 (30°) 显示平均温度下降,但变异增加,表明能量消耗加剧,碎片稳定性改善.
- 当角超过25°时,红外辐射响应和切割力同时增加.
结论:
- 红外热信号是PDC切割过程中岩石故障状态的可行的实时指标.
- 增加角会增加花岩的碎片化,但可能会威胁到PDC切割器的耐用性.
- 建议在15°至25°之间控制角,以便在花岩破碎效率和切割器使用寿命之间取得最佳平衡.
- 该研究阐明了在切割过程中花岩损伤的演变.
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