This new model is used to estimate four aquifer parameters including the magnitude and directions of major and minor principal transmissivities and storativity based on the observed drawdown-time curves within a minimum of three non-collinear observation wells.
Their analysis relies on the analytical solutions of Zlotnik and Tartakovsky (2008), which are based on the assumptions of negligible drawdown in the source bed of a leaky aquifer and of horizontal flow in an aquifer of infinite extent.
It is shown that the classical probabilities of the reservoir being empty and those of spilling can be directly calculated based on the distribution of the critical drawdown and filling periods.
A new method has been proposed to determine the just drawdown speed based on the rotating impeller domain in the CFD simulations.
The assumption that the liquid production is not affected by the higher wellbore pressure or smaller drawdown is based on the close analysis of the daily production data of the well.
Effect on gas rate of reservoir properties and production parameters such as desorption rate, diffusion coefficient, drawdown pressure, half-length of artificial fracture, and flow conductivity were clarified based on the productivity equation.
Performance of three different fracturing fluids - deionized water, potassium chloride (KCl) solution, and slick water - were evaluated based on the volumetric infiltration in the nanoporous network, entrapment of fracturing fluid in the porous media, and total production during drawdown.
"Any further drawdown will be based on conditions on the ground and the recommendations of our commanders," he said, "and they must not jeopardize the hard-fought gains our troops and civilians have made over the past year".
