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The drilling of geothermal energy, CO2 sequestration, and wastewaterinjection all involve the pressurized flow of fluids through porous rock, whichcan cause deformation and fracture of the material. Despite the widespread useof these industrial methods, there is a lack of experimental data on theconnection between the pore pressure rise, the deformation and permeabilitychanges in real rock. In order to address this gap in the literature, thisstudy developed an artificial rock material that can be deformed and fracturedat low pressures. By controlling the porosity, permeability, and strength ofthe material during the sintering process, it is possible to mimic varioustypes of rock. The artificial rock was designed to accommodate radial flow anddeformation, allowing for the tracking of deformation by monitoring the fluxand driving pressure and thus calculating the permeability changes undervarious pressure conditions. The study was able to examine the impact of bothductile and brittle deformation on the permeability during pressurized flow,which were captured by two models that were adjusted to this scenario. Thisstudy provides a link between pressurized flow, rock formation permeability andductile to brittle deformation, that can constrain risk assessment togeothermal energy and CO2

Investigating the Permeability Evolution of Artificial Rock During Ductile and Brittle Deformation Under Pressurized Flow