Simulation study of wormhole formation and propagation during matrix acidizing of carbonate reservoirs using a novel in-situ generated hydrochloric acid

Optimum acid selection based on reservoir condition is one of the key elements in achieving a successful treatment carbonate matrix acidizing. High reaction and corrosion rate regular hydrochloric especially tight reservoirs with high temperatures considered as limitation this acid. One alternative high-temperature to use in-situ generated hydrochloric. The objective study simulate acidizing using both A continuum two-scale model for linear radial flow geometry was used dissolution pattern. finite-volume method an implicit backward Euler scheme solve governing equations. results simulation system showed that, due low face dissolution, at injection rates could create longer wormholes less pore volume breakthrough. also proved that lead deeper penetration into reservoir. This very suitable situations where needed cannot be higher breakthrough rate. Cited : Kiani, S., Jafari, Apourvari, S. N., Mehrjoo, H. Simulation wormhole formation propagation during novel Advances Geo-Energy Research, 2021, 5(1): 64-74, doi: 10.46690/ager.2021.01.07