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TECHNICAL PAPERS

Performance of Positive Displacement Motor (PDM) Operating On Air

[+] Author and Article Information
G. Robello Samuel

Landmark Graphics Corporation, Drilling & Well Services (R&D), Houston, Texase-mail: rsamuel@lgc.com

Stefan Miska

Department of Petroleum Engineering, Director, Tulsa University Drilling Research Projects, University of Tulsa, Tulsa, Oklahomae-mail: Stefan-miska@utulsa.edu

J. Energy Resour. Technol 125(2), 119-125 (Jun 04, 2003) (7 pages) doi:10.1115/1.1575776 History: Received May 01, 2001; Revised December 01, 2002; Online June 04, 2003
Copyright © 2003 by ASME
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References

Magner, H. J. Oct., 1960, “Air Motor Drill,” The Petroleum Engineer.
Robello Samuel, G., 1996, “Percussion Drilling. Is it a Lost Technique?[[ellipsis]] A Review,” SPE 35204.
Li, J., Tudor, R., and Cox, R., 1997, “Positive Displacement Motor Test With Two-Phase Flow,” SPE/ICOTA 38425. Second International North American Coiled Tubing Roundtable.
Shale, L., Feb.2, 1992, “Downhole Motor Specifically Designed for Directional Air Drilling,” OGJ.
Robello Samuel, G., 1998, “Mathematical Modeling and Design Analysis of the Power Section of a Positive Displacement Motor (PDM),” Ph.D. Dissertation, University of Tulsa, Tulsa, OK.
Shapiro, A., 1954, “The Dynamics and Thermodynamics of Compressible Fluid Flow,” New York Ronald Press Company Vol. II.
Rudinger, G., 1957, “The Reflection of Pressure Waves of Finite Amplitude from an Open End of Duct,” J. Fluid Mech., 3 .
“Shock Waves and Shock Tubes,” 1986, Proceedings of the International Symposium on Shock Waves and Shock Tubes. Stanford University Press.
Angel, R. R., 1957, “Volume Requirements for Air and Gas Drilling,” Petroleum Transactions, AIME.
Miska, S., Qui, W., Robello, G. S., Alfredo, S., Johnson, P. W., and Azouz, I., 1995, “Advanced Horizontal Coiled Tubing Drilling System,” Annual report, U.S. Department of Energy.

Figures

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Pressure-volume diagram
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View of flow travel path inside the cavity
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Horizontal view of sections for pressure analysis
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Pressure response for the theoretical consideration
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Pressure response for the actual condition
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Efficiency and horsepower vsersus pressure drop
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Rotational speed and torque versus pressure drop
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Rotational speed and compressor hp and motor hp versus pressure drop
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Efficiency and horsepower versus pressure drop
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Rotational speed and torque versus pressure drop
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Schematic diagram of re-entry hole for example 3
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Output Results of the Example 3 simulations

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