neuzil_calculate_parameters: neuzil_calculate_parameters

In khaors/pumpingtest: R Package for the analysis and evaluation of pumping tests

neuzil_calculate_parameters

Description

Function to calculate the hydraulic parameters for the Neuzil solution

Usage

neuzil_calculate_parameters(ptest, par, hydraulic = TRUE)

Arguments

ptest	A pumping_test object
par	A list with the wellbore storage coefficient (cd) and t0 parameters
hydraulic	Logical flag to indicate if hydraulic parameters are calculated. If False, the the statistcal parameter (a and t0) are calculated.

Value

A list with

• Tr: Transmissivity

• Ss: Storage coefficient

• radius_influence

Author(s)

Oscar Garcia-Cabrejo [e-mail]

References

Neuzil, C. E. On conducting the modified 'Slug' test in tight formations. Water Resources Research, 1982, 18, 2, 439-441

See Also

Other neuzil functions: neuzil_WF_LT, neuzil_solution_dlogt, neuzil_solution_initial, neuzil_solution, neuzil_well_function

Examples

data(neuzil)
ptest.neuzil <- pumping_test("Well1", Q = 0, r = 0.0, t = neuzil$t, s = neuzil$s)
par <- list(rw = 0.067, ceff = 2.723e-9, vs = 1.59)
ptest.neuzil$additional_parameters <- par
sol0 <- neuzil_solution_initial(ptest.neuzil)
neuzil.par <- neuzil_calculate_parameters(ptest.neuzil, sol0)
print(neuzil.par)

khaors/pumpingtest documentation built on June 10, 2025, 4:53 a.m.