Prediction of Annulus Pressure Gradients in Pumping Wells

[+] Author and Article Information
Ž. Schmidt, J. P. Brill, H. D. Beggs

Petroleum Engineering Department, University of Tulsa, Tulsa, Okla. 74104

J. Energy Resour. Technol 102(4), 181-183 (Dec 01, 1980) (3 pages) doi:10.1115/1.3227870 History: Received November 13, 1979; Revised August 25, 1980; Online October 22, 2009


Experimental data on pressure gradients were obtained for gas bubbling through static liquids in various concentric annulus configurations with eight different liquids. Although a definite liquid physical property effect exists, the Gilbert “S” curve gave an adequate representation of the data. A more accurate correlation was developed, together with a physical model that separates hydrostatic and friction components of the pressure gradient.

Copyright © 1980 by ASME
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