Parametric Study of Gravity Change Accompanying Geothermal ReservoirChange Calculated by Numerical Simulation

Abstract

We conducted feasibility studies of gravity monitoring based upon reservoir simulation. At first, actual field data (although slightly modified) were used for constructing the conceptual model of a geothermal reservoir, particularly for shallow geothermal reservoir case study. Then the possibility of gravity monitoring was confirmed. Secondly, in order to study the possibility of this for deep geothermal reservoir, we constructed simplified models for deep reservoir. Three models were prepared for our feasibility studies. These simulations showed us that we could also get fairly positive results, if we apply a very sensitive and stable gravity monitoring system. As a next step, we will investigate gravity monitoring systems according to our feasibility studies.