Assessment of Reservoir Capacity and Influence Range in Slurry Injection

Abstract:

In a slurry reinjection project, the evaluation of reservoir storage capacity and influence range are two important aspects, especially during the process of design and construction. Two key parameters, the formation depth and the formation permeability, were evaluated and their sensitivities were analyzed by using numerical simulation method for the case of injection with constant rate. Our results show that the reservoir storage capacity can be approximated as an exponential function of the injection formation depth and permeability. The influence range is kind of linear function of the two parameters. The results indicate that storage capacity and influence range can be significantly affected by the two parameters. Therefore, in the process of evaluation of reservoir storage capacity and influence range, the influence of formation depth and permeability should be seriously considered.

Key words:Bingham fluid; TOUGH2; slurry injection; reservoir storage capacity; influence range