Forecast of Calcium, Barium, and Strontium Sulfate Salt Deposits during the Development of the Oil and Gas Condensate Field of the Nepa-Botuoba Anteclise (Eastern Siberia)

This paper presents a forecast of calcium, barium, and strontium sulfate salt deposition for the Nepa-Botuoba oil and gas condensate field. Salt depositions were forecasted using both analytical calculations by the Oddo and Thomson method and thermodynamic modeling. Based on the determination of the amount of sulfate salts capable of precipitation, we have established the extent to which the permeability of the bottomhole formation zone may decrease, as well as a potential decrease in the oil production rate of producing wells, due to the precipitation of gypsum, barite, and celestine.