| Abstract |
This paper describes a tracer test design which is part of an investigation into doublet systems within the Rotorua geothermal field. The overall project has been divided into three stages: the fist stage is a theoretical study which is at finding better analytical and numerical methods for simulation of doublets (Pan et al 1990). The second stage is to out a tracer test in the Rotorua geothermal field. The third stage will be an analysis of the tracer test results and an assessment of doublet systems for the geothermal field Thepresent paper discusses the tracer test design work. Tracer tests are being conducted at the Rotorua geothermal field, New Zealand, to detect possible high permeability flow paths connecting injection and production wells. Fluorescein Sodium and RhodamineWT are selected as tracer for the tests since these materials are inexpensive, easy to use, and nontoxic. The major aspects of the work like the field investigation, selection of the tracers, quantity calculation of required tracers, tracer evaluation, choice of doublets for the tests, theoretical tracer test simulation and tracer injection and samplingmethods are described in this paper. |