Estimation of the Filtration Parameters of a Gas Reservoir by Vertical Interference Testing

Resumo

A mathematical model of the vertical interference test of a gas reservoir penetrated by an imperfect vertical well is considered. The effect of vertical and horizontal permeabilities and the degree of reservoir penetration on pressure variation curves in the active and responding well intervals is investigated. A method for interpreting the results of vertical interference testing of a gas reservoir based the theory of inverse problems is proposed. It is shown that the results of vertical interference testing of a gas well can be used to estimate the vertical and horizontal permeabilities and porosity of the reservoir in the case of its full penetration.