Discharge stimulation of geothermal wells: Overview and analysis

Power output from geothermal wells depends on the measured mass flow rate and flowing enthalpy during production (discharge) testing. Key question before testing the productivity is; will the well self-discharge or not after warm-up. This work demonstrates that the simplest and accurate methods to predict the well will self-discharge or not are the Af/Ac method and the new water level to feed zone method. Five well discharge stimulation techniques are discussed and recommendations were given to the well-to-well stimulation when there is a self-discharge well nearby, while the air compression method should be the first choice in remote wells.