INVESTIGATION ON THE EFFECTS OF SOLVENTS IN MITIGATING WAX PRECIPITATION DURING C02 FLOODING

When the wax precipitation reaches the most severe level, it may result in the plugging of well bores, production facilities, and transportation pipelines during oil/gas production. Based on literature study, there are several techniques conducted to mitigate wax precipitation, including chemical, electrical, thermal, mechanical, and microbial treatment. In view of their availability and affordability, chemical methods were chosen to the method applied in this study. The study aims to investigate the effects of solvents in maintaining the wax crystallization growth during C02 flooding process. Physical properties such as viscosity, density, and pour point were measured by using Viscometer, Digital Density Meter, and Pour Point Tester. In addition, the additional study on C02 effects on wax precipitation was conducted. The information about wax content and reservoir temperature of oil was required to support other physical properties measurement