gringarten_solution_dlogt: gringarten_solution_dlogt

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

Description

Function to calculate the derivative of drawdown with respect to logarithm of time using the Gringarten Solution

Usage

gringarten_solution_dlogt(ptest, a, t0, t)

Arguments

ptest	A pumping_test object
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
t	A numeric vector with the time values

Value

A numeric vector with the derivative of the calculated drawdown

Author(s)

Oscar Garcia-Cabrejo [e-mail]

References

Gringarten A. C., Ramey H. J., & Raghavan R., 1975. Applied Pressure Analysis for Fractured Wells, Petroleum Transactions, AIME follows page 784.

See Also

Other gringarten functions: gringarten_calculate_parameters, gringarten_solution_initial, gringarten_solution, gringarten_well_function

khaors/pumpingtest documentation built on Nov. 15, 2019, 8:10 p.m.