Application of Lumped Parameter Modelling to Short-term Pressure Monitoring Data

Abstract

The monitoring of reservoir pressure changes is one of the most important measurement activities in a geothermal reservoir. Such monitoring provides valuable information in understanding the reservoir and forecasting field sustainability. Lumped parameter modeling is one of the most commonly used analytical methods of assessing pressure drawdown data. Though it has been widely used and has proven its reliability in predicting future drawdown in the field, the technique still has weaknesses such as the limited ability to represent the field geometry and its dependence on long-term pressure monitoring data. In this work, pressure monitoring data from a six-month discharge test is correlated with different production data using the lumped parameter modeling tool LUMPFIT to determine the relative influence of different areas in the field on the pressure.