Interference Test Analysis Using Linear Flow Model: A Case Study

Abstract

Thermal water production in Chingshui geothermal reservoir is largely from the fracture zone in the Jentse member of Lushan Formation, which is evidently controlled by the predominant joints and active faults. Because the rock matrix has very low permeability, the fracture system provides the main conduit for fluid flow. Linear flow appears to be a more likely configuration than radial flow.
A conceptual linear flow model was developed based on geological data of Chingshui geothermal area. Field data of interference test in Chingshui geothermal field appears to be rare in the literature. Linear flow models were used to analyze an interference test in Chingshui geothermal reservoir to determine values of reservoir transmissivity and porosity-thickness product.