Spontaneous Imbibition and Evaporation in Rocks at the Nanometer Scale.

ABSTRACT: Understanding multiphase fluid displacement dynamics in porous media is of great importance in efficiently designing hydrogen storage projects in porous reservoirs. During gas injection and extraction, cyclic evaporation and spontaneous imbibition processes have an impact on storage efficiency. In both imbibition and evaporation, capillary films on the surface of grains play a role in the transport of water through the pore space. In this study, we use atomic force microscopy to study the formation of these films in carbonate rock during imbibition and their dynamic behavior during evaporation. The imbibition dynamics are related to pore-scale processes determined by micro-CT experiments. We find that imbibition through the mesoporous structure of the grains is slower compared to imbibitio

SUBMITTER: Wensink G 

PROVIDER: S-EPMC10714348 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature