Roger Blais, PhD

Roger Blais, PhD
Professor Emeritus of Physics
College of Engineering & Natural Sciences
Physics and Engineering Physics

Education

PhD – University of Oklahoma BA – University of Minnesota

Research Interests

Multiphase Fluid Dynamic Instrumentation
Artificial Lift Technology
Remote Sensing
Low Density Plasmas

Teaching Interests

General Physics
Analytical Mechanics
Instrumentation
Multiphase Fluid Flow
Astronomy
Cosmology

Publications

Journal Articles

  • Xu, J., Shirazi, S.A., Doty, D.R., Prado, M.G., and Blais, R.N., “Prediction of Turbulent Friction in Rod-Pumped Wells,” SPE Journal, Vol. 5, No. 2, June 2000, pp. 182–190.

  • Tang, Y., Schmidt, Z., Blais, R. N., Doty, D. R., “Transient Dynamic Characteristics of the Gas-Lift Unloading Process”, SPE 57659, SPEJ (Sept. 1999).

  • Tang, Y., Schmidt, Z., Blais, R. N., Doty, D. R., “A Comprehensive Mechanistic Model for Transient Gas-Lift Unloading”, SPEJ (March 1999).

  • Nicberding, M.A., Schmidt, Z., Blais, R.N., Doty, D.R., “Normalization of Nitrogen-Loaded Gas Lift Value Performance Data,” SPE Prod. & Facilities (August 1993) 203-210.

  • Hepguler, G., Schmidt, Z., Blais, R.N., Doty, D.R.: “Dynamic Model of Gas-Lift Valve Performance,” JPT (June 1993) 576-583.

  • Hepguler, G., Schmidt, Z., Blais, R.N. and Doty, D.R.: “Instrumentation for Dynamical Modeling of Gas-Lift Valves,” Advances in Test Measurement, Vol. 25, Instrument Society of America, (May 1988) 621-629.

  • Torre, A.J., Z. Schmidt, R.N. Blais, and D.R. Doty, “Casing Heading in Flowing Oil Wells,” SPE Production Engineering, November 1987, 297-304.

  • Blais, R.N., Schmidt, Z., Doty, D.R. and Gutler, N.: “Test Facility for Measurement of Pressure Gradient in Large Diameter Vertical Pipes Carrying Two-Phase, Gas Liquid Flows,” Advances in Test Measurement, Vol. 23, Instrument Society of America, (May 1986) 195-201.

  • Blais, R.N., Schmidt, Z., Doty, D.R., Jiao, B., and Biglarbigi, K.: “Test Facilities for Gas Lift Valves and Hydraulic Jet Pumps,” Advances in Test Measurement,, Vol. 22, ISA, (May 1985), 525-530.

Conference Proceedings

  • Xu, J., Doty, D.R., Blais, R. N., Shahraki, A., Lea, J., “A Comprehensive Rod-Pumping Model and its Applications to Vertical and Deviated Wells,” SPE 52215, 1999 SPE Mid-Continent Operations Symposium, Oklahoma City, March 28-31, 1999.

  • Tang, Yula, Blais, R.N., Doty, D.R., Schmidt, Z., “A Mechanistic Model for Predicting Pressure Drop in Vertical Upward Two-Phase Flow,” ASME, February, 1999.

  • Xu, J., Shirazi, S.A., Doty, D.R., Schmidt, Z., Blais, R.N., “Prediction of Turbulent Friction in Rod Pumped Wells,” SPE paper 39800 presented at the 1998 Permian Basin Oil and Gas Recovery Conference in Midland, TX, March 25-27, 1998.

  • Hepguler, G., Schmidt, Z., Doty, D.R., B lais, R.N., “Dynamic Model of Gas Lift Valve Performance,” SPE 21637, presented at the Production Operations Symposium, Oklahoma City, OK, April 7-9, 1991.

  • Nieberding, H.A., Schmidt, Z., Blais, R.N., Doty, D.R., “Normalization of Nitrogen-Loaded Gas-Lift Valve Performance Data,” paper SPE 20673, presented at the 1990 SPE Annual Technical Conference and Exhibition, New Orleans, LA, September 23-26, 1990.

  • Blais, R.N., Pedersen, J.G., Pedersen, B.K., Doty, D.R., Schmidt, Z., “Distinguishing Degree of Segregated and Dispersed Flow by Gamma Deusitometry,” 36 International Instrumentation Symposium, Denver, Colorado, May 6-10, 1990.

  • Pedersen, J., Pedersen, B., Doty, D.R., Blais, R.N., “Calibration of a Gamma-Ray Densitometer for Downhole void Fraction Measurement,” 35th International Instrumentation Symposium, May 1, 1989.

  • Pedersen, J., Pedersen, B., Blais, R.N., Doty, D.R., “Flow Pattern Detection in Two-Phase, Gas-Liquid Vertical Flow by Gamma Densitometry,” Bulletin of the American Physical Society, Vol. 34, Number 1, January 1989.

  • Hepguler, G., Z. Schmidt, R.N. Blais, and D.R. Doty, “Instrumentation for Dynamic Modeling of Gas-Lift Valves,” Proceedings of ISA Aerospace Technology and Test Measurement Symposium, Albuquerque, New Mexico, May 2, 1988.

  • Blais, R.N., Schmidt, Z., Doty, D.R., Guler, N., “Test Facility for Measurement of Pressure Gradient in Large Diameter Vertical Pipes Carrying Two-Phase, Gas-Liquid Flows,” 32nd Int. Instrumentation Symposium, Seattle, Washington, May 5-8, 1986.

  • Torre, A.J., Schmidt, Z., Blais, R.N., and Doty, D.R., “Casing Heading in Flowing Oil Wells,” presented at the SPE 1985 Production Operations Symposium, Oklahoma City, Oklahoma, March 10-12, 1985.

  • Vongvuthapornchai, S., Blais, R.N., Schmidt, Z., Doty, D.R., Brill, J.P., “Experimental Study of Pressure Wave Propagation in Two-Phase Mixtures,” Fourth Adriatic Symposium of Oil Well Technology, Cavtat, Yugoslavia, October 14-17, 1985.

Technical Reports

  • Liao, T., Z. Schmidt, D.R. Doty, and R.N. Blais, “Computer Simulation of Continuous Gas-Lift Installation Design,” May 1988.

  • Nieberding, M., Z. Schmidt, D.R. Doty, and R.N. Blais, “Normalization of Nitrogen Loaded Gas Lift Valve Performance Data,” January 1988.

  • Biglarbigi, K., Schmidt, Z., Doty, D.R., Blais, R.N., “Gas Passage Performance of Continuous Flow Gas Lift Valves,” a report submitted to TUALP members, Nov. 6, 1984.

  • Guler, N., Doty, D.R., Schmidt, Z., Blais, R.N., “Compressor Capacity for the TUALP Study of Two-Phase Flow in Large Diameter Tubing,” a report submitted to TUALP member, July 1984.

  • Jiao, B., Schmidt, Z., Blais, R.N., Doty, D.R., “Jet Pump Performance when Handling Two-Phase Mixtures.”

Other

  • Bertovic, D., D. R. Doty, R. N. Blaix, A. Schmidt: “Calculating Accurate Gas-Lift Flow Rate Incorporating Temperature Effects, SPE 37424, JPT, issue on artificial lift (July, 1997), pp. 739-40.