Possible Increase of Production Through Magnetic Field and Inhibitor Association - Evaluation of Reduction Minimal Inhibitory Concentration - MIC in a Brazilian Pre-Salt Well

Abstract

Abstract This article presents the results obtained in the evaluation of the joint action of the chemical inhibition (inhibitor) and the magnetic field, aiming to evaluate the possibility of reducing the minimal inhibitory concentration (MIC), seeking an increase in production in oil extraction wells, increasing the reliability of the guarantee of flow in deep water wells. The magnetic field has the potential to retard the scaling of inorganic salts in oil production/water treatment systems. An evaluation of the combination of magnetic field and inhibitor to retard carbonate scaling was carried out, based on the tube blocking test method (TBT). The evaluation was carried out in two brine solutions, with reduced concentrations from a brine solution representative of the Brazilian pre-salt. A reactor with an internal diameter of 0.045 cm and a total flow rate of 20 cm3/min was used. (Re ≈ 900), reactor inlet pressure of 10 kgf/cm2 and outlet pressure of 1 kgf/cm2. The temperature was 60 °C and the inhibitor used was hydroxymethyl amino-di(methylene phosphonic acid) type in different concentrations. The magnetic field used was 1.0 Tesla. The results indicate that the association of inhibitor and magnetic field under certain conditions can lead to significant delays in calcium carbonate fouling, proving to be an interesting strategy for mitigating calcium carbonate fouling.