New Data Reduction Tools and their Application to The Geysers Geothermal Field

Abstract

Microsoft Excel based (using Visual Basic for Applications) data-reduction and visualization tools have been developed that enable the user to numerically reduce large sets of geothermal data to any size. The data can be quickly sifted and graphed to allow their study. The ability to analyze large data sets can yield responses to field management procedures that would otherwise be undetectable. Field-wide trends such as decline rates, response to injection, evolution of superheat, recording instrumentation problems and data inconsistencies can be quickly queried and graphed. Here we demonstrate the application of these tools to data from The Geysers Geothermal field. We believe these data-reduction tools will also be useful in other applications, such as oil and gas field data, and well log data. A copy of these tools may be requested by contacting the authors.