Inputs | Outputs | ||
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field-average formation pressure at time moment | Cumulative subsurface water influx from aquifer | ||
initial formation pressure | Subsurface water flowrate from aquifer | ||
water influx constant | |||
aquifer diffusivity | |||
net pay area |
Transient flow in Radial Composite Reservoir |
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Transient flow in Radial Composite Reservoir:
One can easily check that pressure from honors the whole set of equations – and as such defines a unique solution of the above problem. |
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Field Study & Modelling / Aquifer Drive / Aquifer Drive Models
1. van Everdingen, A.F. and Hurst, W. 1949. The Application of the Laplace Transformation to Flow Problems in Reservoirs. Trans., AIME 186, 305.
2. Tarek Ahmed, Paul McKinney, Advanced Reservoir Engineering (eBook ISBN: 9780080498836)
3. Klins, M.A., Bouchard, A.J., and Cable, C.L. 1988. A Polynomial Approach to the van Everdingen-Hurst Dimensionless Variables for Water Encroachment. SPE Res Eng 3 (1): 320-326. SPE-15433-PA. http://dx.doi.org/10.2118/15433-PA