离心式防卡钻的PDC钻头
By incorporating a centrifugal mechanism within the PDC drill bit to regulate its rotational speed, the problems of stuck drill bits and stick-slip vibrations in hard formations have been resolved, resulting in improved drilling efficiency and lifespan while reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHINA UNIV OF PETROLEUM (BEIJING)
- Filing Date
- 2023-09-08
- Publication Date
- 2026-07-17
AI Technical Summary
Existing PDC drill bits are prone to tooth breakage, chipping, and severe wear in hard formations, and are also susceptible to stuck drill bits and stick-slip vibrations, resulting in slow drilling speeds, short drill bit lifespans, long drilling cycles, and high costs.
A centrifugal anti-jamming PDC drill bit is designed. By setting a centrifugal mechanism in the drill bit body, the centrifugal mechanism is driven by a rotary joint to abut or separate from the inner wall of the drill bit body, thereby controlling the drill bit speed, preventing jamming and stick-slip vibration, and protecting the cutting teeth.
It effectively prevents cutting teeth from chipping and breaking, avoids drill bit jamming and breakage, improves drilling efficiency, extends drill bit life, and reduces drilling costs.
Smart Images
Figure CN117108210B_ABST