Page 635 - Air and Gas Drilling Manual

water to be injected into the compressed air or gas flow to the drill string. The
downhole pneumatic turbine motors are the only specialized downhole drilling
equipment that can be used with dry compressed air (or other drilling gases).
References Chapter 11: Specialized Drilling Equipment 11-73
1. Tiraspolsky, W., Hydraulic Downhole Drilling Motors, Gulf Publishing, 1981.
2. Bourgoyne, A. T., Millheim, K. K., Chenevert, M. E., and Young, F. S.,
Applied Drilling Engineering, SPE, First Printing, 1986.

3. Lyons, W. C., U. S. Patent No. 4,553,611; Issued November 19, 1985; "Pressure
Regulator for Downhole Turbine."

4. Lyons, W. C., Miska, S., and Johnson, P. W., “Downhole Pneumatic Turbine
Motor: Testing and Simulation Results,” SPE Drilling Engineering, September
1990.
5. Johnson, P. W., and Lyons, W. C., “Development and Validation of a Model
for Predicting the Performance of a Downhole Pneumatic Turbine Powered
Drilling
Engine,” Journal of Petroleum Science and Engineering, July 1992.

6. Magner, H. J., “Air Motor Drill,” Petroleum Engineer, October 1960.