A PDC bit with a ring set of teeth
By adopting a combination of ring-shaped tooth distribution structure and radial cutter wings in the PDC drill bit, the cutting tooth distribution is optimized, solving the problem of cutting tooth wear failure in complex geological conditions, and achieving more efficient rock breaking and longer service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SOUTHWEST PETROLEUM UNIV
- Filing Date
- 2026-05-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing PDC drill bits are prone to cutting tooth wear failure under complex geological conditions, making it difficult to effectively control the depth of the drill bit in the formation, resulting in broken drill blades and low drilling efficiency.
The drill bit adopts a ring-shaped tooth arrangement structure. By setting multiple annular cutting teeth in the drill bit and combining them with radial cutter wings, a ring-shaped cutting structure is formed, which optimizes the arrangement and distribution of cutting teeth to improve the overall strength and cutting efficiency of the drill bit.
It improves the drill bit's rock-breaking ability under complex geological conditions, reduces cutting tooth wear, extends drill bit service life, and improves drilling efficiency and stability.
Smart Images

Figure CN122407083A_ABST