METHOD FOR DETERMINING THE SOUR GAS STORAGE CAPACITIES OF A GEOLOGICAL ENVIRONMENT USING A MULTI-PHASE REACTIVE TRANSPORT MODEL

摘要

- We cut the geological environment into a set of sub-volumes for which we define links. We then define a multiphase reactive transport model, by realizing, according to a transfer rate principle, a division of the phenomena involved in the behavior of said geological medium into two parts. A first part is treated by a first sub-model of the compositional multiphasic reservoir type making it possible to determine the transfer rates linked to the gas phase. A second part is treated by a model of reactive monophasic transport type making it possible to determine the transfer rates linked to water and solid. The model is initialized using data acquired in the field or in the laboratory. The storage capacities in acid gases of the medium are determined from the reactive transport model. - Application to the storage of acid gases in a natural tank.