f MEASUREMENT OF FRACTURE/MATRIX HEAT EXCHANGE USING FIBER OPTIC DISTRIBUTED TEMPERATURE SENSING

Fluid circulation in fractured geothermal reservoirs is often impacted by an uneven sweep of water between injection and pumping wells. This channelization of flow can result in poor circulation or, alternatively, premature thermal breakthrough. Although the phenomenon has been frequently recorded in the temperature history at production wells, temperature loss in the rock matrix cannot be monitored in geothermal reservoirs.