cooper_solution_dlogt: cooper_solution_dlogt

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

cooper_solution_dlogt

Description

Function to calculate the derivative of the drawdown with respect to the log of time for the Cooper solution for slug tests

Usage

cooper_solution_dlogt(ptest, cd, t0, t)

Arguments

ptest	A pumping_test object
cd	Value of the dimensionless storage coefficient (cd)
t0	Intercept of the straight line fitted to the drawdown data using the Cooper-Jacob approach
t	A numeric vector with the time values

Value

A numeric vector with the values of the drawdown

Author(s)

Oscar Garcia-Cabrejo [e-mail]

References

Cooper, H. H.; Bredehoeft, J. D. & Papadopulos, I. S. Response of a finite-diameter well to an instantaneous charge of water Water Resources Research, 1967, 3, 263-269

See Also

Other cooper functions: cooper_WF_LT, cooper_calculate_parameters, cooper_solution_initial, cooper_solution, cooper_well_function

Examples

data(cooper_slug)
ptest <- pumping_test("Well1", Q = 0, r = 0, t = cooper_slug$t, s = cooper_slug$s)
sol0 <- cooper_solution_initial(ptest)
sol_dlogt <- cooper_solution_dlogt(ptest, sol0$cd, sol0$t0, ptest$t)
print(sol_dlogt)

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