Wellbore Gyp-Scale Control

[+] Author and Article Information
T. L. Knowles

Exxon Co., Andrews, Texas

J. Eng. Ind 97(2), 507-512 (May 01, 1975) (6 pages) doi:10.1115/1.3438612 History: Received July 03, 1974; Online July 15, 2010


Gyp-scale deposition in producing wellbores is a recognized problem in many West Texas oil fields. The results of gyp-scale formation are usually reduced producing rates, premature well abandonment, and high operating expenses. An effective gyp removal and inhibition program is necessary for successful operation where gyp-scaling problems exist. Development of the gyp-control program presently in effect in the Means (San Andres) Unit began in 1969 when gyp was originally detected in the Grayburg-San Andres reservoir of the Means Field in Andrews County, Texas. Prior to that time, a great deal of progress had been made in the area of gyp-scale control in the Means (Queen) reservoir which overlies the Grayburg-San Andres. This paper presents a description of the Means (San Andres) Unit Gyp Scale Control Program and the results achieved with that program.

Copyright © 1975 by ASME
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