Drilling device
By designing a drilling device with serrated blades and spiral conveyor blades, the problems of low efficiency and borehole collapse caused by duds in underground channel wave seismic detection in coal mines were solved. This device achieved efficient breaking of borehole mud, reduced drilling resistance, and ensured the integrity of the borehole and the excitation quality of the data points.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA ENERGY GRP NINGXIA COAL IND CO LTD
- Filing Date
- 2026-04-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies for underground channel wave seismic detection in coal mines suffer from problems such as misfires leading to internal network issues within the boreholes. These problems result in low efficiency, borehole wall collapse, insufficient source energy, and incomplete data acquisition, affecting the accuracy of geological interpretation and the safety of underground operations.
Design a drilling device including a drill assembly and a sleeve. The drill bit has a serrated blade, a spiral conveyor, and a drill rod. The sleeve protects the drill bit during drilling to prevent radial deflection. The spiral conveyor transports cuttings. The sleeve and the drill assembly move synchronously to ensure the integrity of the borehole wall.
It improved the efficiency of handling duds, reduced the risk of borehole collapse, ensured the integrity of boreholes and the spatial consistency of data points, and ensured the excitation quality of groove wave detection and the safety of downhole operations.
Smart Images
Figure CN122407074A_ABST