Declining productivity in geothermal wells as a function of the damage effect

Abstract

The inflow curve may be used to determinate the damage effect and wellbore characterization in geothermal fields. The methodology can be applied fir determining damage effect in wells that cannot be retired from continuous exploitation. The skin or damage effect is usually estimated from transient pressure tests which require time. It was found that the damage effect in the wells increases with exploitation time and is related with deterioration of production. Knowledge of damage is needed for taking decisions about operations on the well for enhancement of productivity.