Interference Test Analysis Method in the Presence of a Linear Boundary Field

Abstract

A method has been developed for analyzing interference test data in the presence of a hydrologic boundary. Kalman filtering algorithm has been applied as a parameter estimating method to the line source solution that expresses pressure response caused by fluid production and/or injection at active wells. This solution is modified to express the effects of the presence of the boundary on pressure response. The analysis method comprises two steps. First, an infinite reservoir model will be used for analyses, and performances of the estimated values of parameters, transmissivity and storativity, with time would provide information on the presence of the boundary and its impermeable boundary or a constant pressure boundary. On the basis of this result, an appropriate model will be assigned to reanalyze the data. Synthetic data was analyzed to validate the use of the method, and the estimated values of the parameters are to be satisfactory.