Predicting Pressure Distribution in Irregularly Shaped Reservoirs under Water-drive Conditions
Many analytical methods use radial and rectangular systems to interpret unsteady-state reservoir flow problems. However, there is no information currently available for irregularly shaped water-drive reservoirs. For many practical cases the reservoir drainage shape is too complicated to be approxima...
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Published in | Journal of The Japan Petroleum Institute Vol. 35; no. 3; pp. 261 - 273 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Tokyo
The Japan Petroleum Institute
1992
Sekiyu Gakkai |
Subjects | |
Online Access | Get full text |
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Summary: | Many analytical methods use radial and rectangular systems to interpret unsteady-state reservoir flow problems. However, there is no information currently available for irregularly shaped water-drive reservoirs. For many practical cases the reservoir drainage shape is too complicated to be approximated by a circular or rectangular shape. In addition, many reservoirs are under water-drive conditions. This paper develops a means of predicting pressure-transient behavior in an irregularly shaped water-drive reservoirs. In this paper, the dimensionless-pressure function is obtained by superposing the line-source solutions of image wells in time. The method is first applied to regularly shaped reservoirs under water-drive conditions. The validity of the approach is then proved by comparison of the calculated dimensionlesspressure functions with literature values for various regular drainage shapes. The proven technique could be used to analyze the field pressure-transient data to provide information on reservoir engineering parameters, water-drive distribution and strength, fault sealingness and non-sealingness. |
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ISSN: | 0582-4664 |
DOI: | 10.1627/jpi1958.35.261 |