Calculates the initial values of parameters of Warren and Root solution
warren_root_solution_initial(ptest)
ptest | A pumping_test object |
---|
A list with
a: Slope
t0: Intercept of the early time asymptote
t1: Intercept of the late time asymptote
tm: time of the minimum derivative
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_dlogt
,
warren_root_solution
,
warren_root_well_function