agarwal_skin_calculate_parameters: agarwal_skin_calculate_parameters

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

agarwal_skin_calculate_parameters

Description

Function to calculate the hydraulic parameters for Agarwal solution (skin and wellbore storage)

Usage

agarwal_skin_calculate_parameters(ptest, par, hydraulic = TRUE)

Arguments

ptest	A pumping_test object
par	A list with the values of slope and intercept (a and t0) of the straight line fitted to the drawdown data using the Cooper-Jacob approach, and the value of skin factor(sigma)
hydraulic	Logical flag to indicate if hydraulic parameters are calculated. If False, the the statistcal parameter (a and t0) are calculated.

Value

A list with

• Tr: Transmissivity

• Ss: Storage coefficient

• cd: Wellbore storage

• rd: Dimensionless radius

Author(s)

Oscar Garcia-Cabrejo [e-mail]

References

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

See Also

Other agarwal_skin functions: agarwal_skin_WF_LT, agarwal_skin_solution_dlogt, agarwal_skin_solution_initial, agarwal_skin_solution, agarwal_skin_well_function

Examples

data(papadopulos_cooper)

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