DEM Analysis of Shielding Property Improvement in Porous Rocks Due to Enzyme-Induced Calcite Precipitation

Abstract

The CCS (Carbon Capture and Storage) technique is aimed at reducing carbon dioxide emissions and ensuring aquifer safety. Utilizing the Enzyme-Induced Calcite Precipitation (EICP) method, we decreased the permeability of reservoir rocks which helps in preventing carbon dioxide leakage. The study applied the three-dimensional discrete element method (3D-DEM) to simulate permeability in porous rocks creating models with varying grain sizes and porosity. The precipitation of micro-minerals in lower porosity rock layers significantly reduces permeability.