cooper_jacob_solution_initial

Function to calculate the initial values of the Cooper-Jacob Solution

cooper_jacob_solution_initial(ptest)

Arguments

ptest	A pumping_test object

Value

A list with the values of a (slope) and t0 (intercept) of the straight line fitted to the drawdown data

References

Cooper, H. & Jacob, C. A generalized graphical method for evaluating formation constants and summarizing well field history. Transactions of the American Geophysical Union, 1946, 27, 526-534

See also

Other cooper_jacob functions: cooper_jacob_calculate_parameters, cooper_jacob_solution_dlogt, cooper_jacob_solution, cooper_jacob_well_function

Examples

data(theis)
ptest <- pumping_test("Well1", Q= 1.3e-3, r = 200, t = theis$t, s = theis$s)
cooper_jacob_sol0 <- cooper_jacob_solution_initial(ptest)
print(cooper_jacob_sol0)
#> $a
#> [1] 1.534881
#> 
#> $t0
#> [1] 245.0811
#>