The Implementation of Fractal Model to Analyze Interference Test Data in the Darajat Geothermal Field

Abstract

This paper describes the implementation of an advance model based on a fractal interpretation of the fractured medium. Using the fractal concept, type curves for analyzing pressure transient test data have been developed. Using the resulting formulation several type curves have been generated for analyzing the interference test data in the geothermal reservoirs especially in naturally fracture reservoirs.

The objectives of this study were to implement the new type curve for analyzing interference test data in the Carajat Geothermal Field, Amoseas Indonesia, Inc., to obtain reservoir characteristics such as permeability, transmissibility, storativity and fractal dimension.

The results of interference tests match perfectly on the type curve generated using the fractal model and the proposed type curves perform better than the conventional one, especially in evaluating early time data of the interference test and the dimension of fractal medium.