Experimental Study on Acidizing Fluid Viscosity Variation during Carbonate Well Stimulation

During an acidizing treatment execution, success depends on correct prediction of reactive fluids behavior under stimulation condition. Determining the variation of acid viscosity and having it under control through the whole process of reaction can aid in improving the effective acid penetration radius, accessibility of acid to the pore space and an appropriate cleaning in back-flow stage. The goal of this work is to investigate the effect of acids with different concentrations on viscosity of the acidizing fluid which is used in acidizing process for carbonate rocks during the process. Finally, we want to determine a correlation between acid concentration and viscosity of the ultimate solution.