Improved Acid Stimulation In Carbonates: Impact Of Acid Types And Flow Rate On Reactive Transport Mechanisms

Improved Acid Stimulation in Carbonates: impact of acid types and flow rate on reactive transport mechanisms Oussama Gharbi1, Stefan Goedeke2, Mohammed Al-Sammarraie2, Nour El Cheikh Ali1, Saqer Al-Shahwani2, Pascal Cheneviere1, Dominique Guerillot2 and Philippe Julien1 1 TOTAL E&P Golfe ltd - Qatar branch , 2 Qatar Petroleum Research & Technology Centre Acid stimulation in carbonates is a reactive transport mechanism where transport dynamics are coupled with reaction kinetics. Accurate description of reactive transport in heterogeneous porous media still represents a scientific challenge. One of the main objectives of acid stimulation treatments in carbonate reservoirs is to achieve a good zonal coverage with the acid, especially to unlock low permeability hydrocarbon regions. However, field applications show that acid stimulation leads to a poor increase of permeability in the targeted region as well as an increase in water production. In this joint research program between Qatar Petroleum and TOTAL, we...