Research of sedimentation of calcium carbonate and barium sulfate in case of paraffin inhibitor presence
The paper discusses the problem associated with conditions of non-organic compounds sedimentation inside oil and gas equipment, being widely recognized as one of the major operational problems during oil production and development. Possibility of sedimentation of calcium carbonate and barium sulfate is determined using the saturation index in the presence of paraffin inhibitor. Probability graphs of calcium carbonate and barium sulfate sedimentation have been built, based on the analysis of the chemical composition of the formation water with regard to the ions content in the produced water, its density and salinity in case of presence of various concentrations of the inhibitor that prevents paraffin formation. The main trends of non-organic salts formation, depending on the pH value of formation water model are determined.