Fetkovich aquifer
Webther, Fetkovich proposed a model that uses a pseudosteady-state aquifer PI and an aquifer material balance to represent the system compressibility. Like the Carter-Tracy method, Fetkovich's model eliminates the use of superposition and therefore is much simpler than van the Everdingen-Hurst method. WebSep 16, 2024 · The result of the aquifer influx is as shown below, From the plot shown above, the aquifer influx result using Schilthuis and VEH agree pretty closely with each other, except using Fetkovich....
Fetkovich aquifer
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WebAug 4, 2024 · The Fetkovich analytic aquifer model is based on the principle of material balance; that is, the volume of water at the initial time under the current pressure should be equal to the sum of the pore volume under the current pressure and the volume of water invading the adjacent reservoir ( Fetkovich, 1971 ). WebFeb 14, 2024 · If the production data deviates from the unit slope upwards, and there is reason to believe water drive is the cause, then it can be modeled using Fetkovich’s …
WebFetkovich originally developed his type curves for gas and oil wells that are producing at constant pressures. Carter (1985) presented a new set of type curves developed … WebThe aquifer flow model is radial and limited. The models discussed -- van Everdingen & Hurst, Fetkovich, Carter & Tracy, and Leung -- are all applicable to radial and limited aquifers. Some inaccuracy is observed when they are applied to extensive aquifers, and to a brief reservoir production time.
WebSep 11, 2024 · The common models for edge-water drive aquifer modeling in commercial reservoir simulators include Fetkovich, Carter–Tracy (CT), and numerical models. In the … WebJan 28, 2024 · Fetkovich. In the Fetkovich aquifer, the aquifer is assumed to be in pseudo-steady state and depleted according to the material balance equation. In this model, both the aquifer volume and transfer coefficient …
There are several popular aquifer models: 1. van Everdingen-Hurst (VEH) model 2. Carter-Tracy model 3. Fetkovich model 4. Schilthuis model 5. Small- or pot-aquifer model The first three models are unsteady-state models and are the most realistic. They attempt to simulate the complex pressure changes that … See more van Everdingen and Hurst considered two geometries: radial- and linear-flow systems. The radial model assumes that the reservoir is a right cylinder and that the aquifer surrounds the reservoir. Fig. 1illustrates the radial … See more The minimum parameters that need to be specified in the radial model are the aquifer constant, U, the time constant, kt, and the dimensionless aquifer radius, reD. The time constant combines a number of constants, is the … See more Table 2 summarizes the cumulative water influx and average reservoir pressure as a function of time for an initially saturated, black oil reservoir. … See more The aquifer performance is described in terms of the: 1. Delivery rate 2. Average aquifer pressure 3. Cumulative water-influx volume as a … See more
WebMar 1, 2024 · In this study, Campbell and energy plots are used as diagnostic tools to identify the aquifer type based on the signature of production and pressure behavior. In … rcswitch库函数http://conference.umat.edu.gh/wp-content/uploads/2024/08/Comparison-of-Analytical-and-Numerical-Water-Influx-Models-in-Bottom-Water-Reservoir.pdf rc switsh w/digital outputrcswu54youthzzb sina.comWebMar 28, 2024 · Finally, the Fetkovich aquifer model was embedded into the reservoir simulator. A commercial CBM reservoir simulator, COMET3 software, was used; it was developed by Advanced Resources International of America, and it contains all of the above equations in its built-in equations. The above aquifer model was selected to characterize … sims swimsuit ccWebThe match parameters were recorded as the base parameter and other sensitivity on aquifer parameters using the Fetkovich model for the bottom and edge water drive. The average percentage... sims suzuki used carsWebSep 15, 2024 · Fetkovich (1971) developed a method of describing the approximate water influx behavior of a finite aquifer for radial and linear geometries. The results of this … sims tableclothsWebSep 14, 2015 · Fetkovich’s IPR requires multiple test points to determine the deliverability exponent n. Table 2 shows the test data prepared for plotting. The data are plotted on a logarithmic graph, which is used to estimate the slope of the best-fit straight line through the data. The deliverability exponent n is the inverse of the slope. rc swivel ball cup