Function to calculate the initial solution of the Agarwal solution (skin and wellbore storage)
agarwal_skin_solution_initial(ptest)
| ptest | A pumping_test object |
|---|
A list with :
a: Slope of the straight line fitted to the drawdown data using the Cooper-Jacob approach
t0: Intercept of the straight line fitted to the drawdown data using the Cooper-Jacob approach
sigma: skin factor
Agarwal, R.; Al-Hussainy, R. & Ramey, H. An Investigation of Wellbore Storage and Skin Effect in Unsteady Liquid Flow: I. Analytical Treatment. Society of Petroleum Engineers Journal., 1970
Other agarwal_skin functions: agarwal_skin_WF_LT,
agarwal_skin_calculate_parameters,
agarwal_skin_solution_dlogt,
agarwal_skin_solution,
agarwal_skin_well_function
data(papadopulos_cooper)