Journal ArticleDOI
Calculation of Gas Recovery Upon Ultimate Depletion of Aquifer Storage
TLDR
In this article, the authors illustrate the use of multi-dimensional, 2-phase, compressible fluid flow calculations to simulate the depletion of an aquifer storage reservoir is dependent upon reservoir heterogeneity, aquifer strength, production rate and fluid and rock properties such as density, viscosity, relative permeability, capillary pressure and residual gas saturation.Abstract:
The recovery of cushion gas upon ultimate depletion of an aquifer storage reservoir is dependent upon reservoir heterogeneity, aquifer strength, production rate and fluid and rock properties such as density, viscosity, relative permeability, capillary pressure, and residual gas saturation. This study illustrates the use of multi-dimensional, 2-phase, compressible fluid flow calculations to simulate the depletion. Results which illustrate the non-exhaustive examination of the effects of heterogeneity, aquifer strength, and gas production rate are presented. The study indicates a strong dependence of recovery upon reservoir heterogeneity. The multi- dimensional type of calculation employed appears necessary to reliably estimate recoverable cushion gas for any particular reservoir.read more
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Journal ArticleDOI
Physical, chemical and energy aspects of underground hydrogen storage
P.O. Carden,Lincoln Paterson +1 more
TL;DR: In this paper, the losses associated with gas storage in aquifers are discussed These losses include physical leakage of gas, loss of gas through underground chemical reactions and the energy requirements associated with storing and recovering the gas Although underground storage of hydrogen appears a most promising solution to the problem of large scale energy storage, much work remains to be done to confirm this
Journal ArticleDOI
Applying a robust solution based on expert systems and GA evolutionary algorithm for prognosticating residual gas saturation in water drive gas reservoirs
TL;DR: In this paper, two different intelligent models are proposed for spontaneous imbibition and force flood in strong water drive gas reservoirs, and an outlier approach detection based on Leverage method was applied to investigate the applicability domain of the proposed models as well as possible outlier data.
Journal ArticleDOI
Heterogeneity effect on non-wetting phase trapping in strong water drive gas reservoirs
TL;DR: In this paper, the heterogeneity effect on residual gas saturation and the recovery factor in strong water drive gas reservoirs (WDGRs) is investigated. But, the results reveal that heterogeneity is not always detrimental to gas recovery, and when the ratio of the aquifer to gas zone permeability is less than one, the amount of trapped gas reduces.
Journal ArticleDOI
Effect of heterogeneity on the productivity of vertical, deviated and horizontal wells in water drive gas reservoirs
TL;DR: In this article, the effect of heterogeneity on performance of water drive gas reservoirs by considering recovery factor and cumulative water production was investigated using the Design of Experiments (DOE) and Response Surface Methodology (RSM) using a reservoir simulation model.
Journal ArticleDOI
Water Production Problem in Gas Reservoirs: Concepts, Challenges, and Practical Solutions
TL;DR: This study comprehensively presents the available methods for water control problems in parallel with conceptual and qualitative comparison and can be very constructive for better understanding of water sources, available diagnostic tools, and solutions for controlling water production in gas reservoirs.
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