A downhole gyro shock absorber driven by turbo speed-up and magnetic transmission coupling
The downhole gyro damper driven by turbine speed increase and magnetic transmission coupling solves the problems of poor damping effect and unstable transmission under complex downhole working conditions, and achieves high-efficiency damping performance and extended tool life, adapting to the high temperature and high pressure environment downhole.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- YANGTZE UNIVERSITY
- Filing Date
- 2026-05-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing downhole vibration damping devices are ineffective in suppressing high-frequency impact vibrations and nonlinear vibrations in complex and variable downhole environments. They are also prone to wear under high temperature and high pressure conditions and lack effective overload protection, thus failing to meet the drilling needs of deep and complex formations.
The downhole gyro damper, driven by a turbine speed-up and magnetic drive coupling, converts the kinetic energy of drilling fluid into mechanical energy through a power system consisting of an axial turbine and a circular arc flat blade guide wheel. It uses a magnetic drive mechanism to achieve contactless torque transmission, and increases the rotational speed and protects the transmission components through a protection speed-up mechanism and a ratchet protection mechanism. Combined with the gyro assembly, it generates a reverse gyro torque to suppress vibration.
It achieves efficient vibration reduction under complex downhole working conditions, improves tool life and vibration reduction performance, avoids mechanical wear and overload damage, and is suitable for downhole non-electrical working environments.
Smart Images
Figure CN122407095A_ABST