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This paper discusses positive pulse pressure telemetry, classic pulse attenuation models in a wellbore, and the Compass Directional Guidance, Inc. attenuation model.
The use of positive pressure pulse telemetry for communicating real-time data in wellbores is a common technique used during Measurement While Drilling (MWD) operations. The tools often use a poppet and orifice to restrict the flow of drilling fluid to create a positive pressure pulse. As the pulse travels up the well, pulse amplitude decreases and the shape becomes softened. At surface the pulses are detected and decoded by the surface system. This paper discusses positive pulse pressure telemetry, classic pulse attenuation models in a wellbore, and the Compass Directional Guidance, Inc. attenuation model.
Learn the following and more:
- Why does the pulse height attenuate between the tool and the surface?
- Adjusting pulser configuration based on pressure pulses measured at surface
- Compass attenuation model compared to literature models