| 摘要 |
A fluid powered downhole vibration tool used in a well bore having fluids under pressure. The tool includes a fluid powered motor located within the well bore, the fluid powered motor is in communication with the fluids under pressure. An actuato r coupling is rotated by the fluid powered motor. A seismic mass is rotated in the well bore by the actuator coupler, the seismic mass engaging the well bore and causing vibration of the well bore.
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