Application of Systems Analysis Techniques in Optimizing Gas Lift Installations

[+] Author and Article Information
K. E. Brown

The University of Tulsa, Petroleum Engineering Department, Tulsa, Okla. 19711

J. Mach, E. A. Proano

Johnston-Macco Schlumberger, Sugarland, Tex.

J. Energy Resour. Technol 104(2), 157-161 (Jun 01, 1982) (5 pages) doi:10.1115/1.3230393 History: Received October 30, 1980; Revised August 10, 1981; Online October 22, 2009


Systems analysis technqiues are applied to several well cases in order to optimize production rate and gas consumption of a continuous flow gas lift system. It is a procedure whereby various components, such as well capability, tubing size, flowline size, and separator pressure are analyzed in conjunction with the entire system in order to optimize the individual well or group of wells in a field. The solution point (node) can be taken anywhere in the system, but normally taken at the bottom or top of the well, and preferably both. Example problems will show the most logical manner to increase the flow rate, reduce the gas consumption, or both. A lowering of separator pressure to increase the flow rate may be a serious mistake. Examples will show that a more logical approach may be to increase the flowline size. In conclusion, all the individual components of a system must be analyzed in conjunction with the entire system for proper final analysis.

Copyright © 1982 by ASME
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