Function to calculate the derivative of the drawdown with respect to the logarithm of time for the Warren Root model
warren_root_solution_dlogt(ptest, a, t0, t1, tm, t)
| ptest | A pumping_test object |
|---|---|
| a | Slope of the Cooper-Jacob solution r |
| t0 | Intercept with the time axis for the early time asymptote |
| t1 | Intercept with the time axis for the late time asymptote |
| tm | Time of the minimum derivative |
| t | A numeric vector with the time values |
A numeric vector with the calculated drawdown
Warren, J. & Root, P. The Behavior of Naturally Fractured Reservoirs. Society of Petroleum Engineers Journal., 1963, 3.
Other warren_root functions: warren_root_WF_LT,
warren_root_solution_initial,
warren_root_solution,
warren_root_well_function