Pore scale modeling and evaluation of clogging behavior of salt crystal aggregates in CO2-rich phase during carbon storage

The optimal CO2 storage operation requires high permeability in the near-well region order to keep it safe and cost-efficient. Nucleation growth of salt crystals driven by evaporation formation water into under-saturated (dry) super-critical streams result changes porosity near well-bore area. Permeability reduction is one main reasons for injectivity losses context saline aquifers. According recent studies, during storage, grow two different forms: 1) single, large aqueous phase, 2) aggregates micro-meter size CO2-rich vapor phase. All previous numerical studies at pore-scale have addressed In this work we developed a 3D reactive transport solver based on D3Q19 advection-diffusion Lattice-Boltzmann model. model takes first time nucleation consideration via new probabilistic approach simulate crystal phase their effect pore morphology permeability. Comparing results porosity-permeability relations with some well-known clogging models, confirms need capture caused aggregates.