neuzil_solution_initial

Calculates the initial values of parameters of Neuzil solution

neuzil_solution_initial(ptest)

Arguments

ptest	A pumping_test object

Value

A list with

• cd: Wellbore storage coefficient

• t0: Intercept

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_calculate_parameters, neuzil_solution_dlogt, 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)
print(sol0)
#> $cd
#> [1] 50
#> 
#> $t0
#> [1] 2295.53
#>