Abstract
Aquifers are rocks fully saturated with water that can be associated with petroleum reservoirs. Because of the large water volume, aquifers play an important role in maintaining the pressure in oil reservoirs in production, making them able to achieve high recovery factors as a function of the water influx supplied to each reservoir pressure drop that is transmitted to the aquifer. Given the importance of that water influx, its correct calculation is important in order to increase the accuracy of the forecast of fluid production from hydrocarbon reservoirs. Thus, this study compared four Laplace inversion techniques applied to functions in the Laplace domain, obtained as solutions of an analytical model to calculate the water influx and confirmed the Stehfest method as a method that produces accurate and precise results.
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