Habibi, Abdul Hadi
(2021)
Analisis Pengaruh Salinitas Brine Dan Konsentrasi Biopolimer (Xanthan Gum) Terhadap Efektivitas Polymer Flooding Di Lapangan HB Menggunakan Simulasi Reservoir.
Other thesis, Universitas Islam Riau.
Abstract
One type of polymer that is commonly applied in the field is xanthan gum which is a bacterial polysaccharide. In theory, xanthan gum is considered to have better performance in resistance to formations with high salinity than synthetic polymers (HPAM). This study aims to obtain the optimal value of brine salinity and xanthan gum concentration to be applied in the HB field. Base case modeling in HB Field was carried out using the CMG STARS Simulator by inputting reservoir fluid data, reservoir characteristics data and injection fluid data. Nine scenarios were applied to the HB field with brine salinity data (1000 ppm, 2000 ppm and 10000 ppm) and xanthan gum concentrations (400 ppm, 800 ppm and 1200 ppm) as sensitivity parameters. The results of running the nine scenarios are compared with the results of the base case where the base case in this study is a polymer with a concentration of 1000 ppm and a salinity of 1000 ppm. The results of the comparison with the water flooding method will be the first benchmark that indicates the effectiveness of polymer flooding. Water flooding and polymer flooding are applied for 10 years where for polymer flooding is divided into three stages, namely pre-flush 3 years, polymer flood 4 years and post-flush 3 years. This polymer flood injection step is applied to both the base case and the other nine scenarios. After the simulation was carried out, it was found that the higher the concentration, the greater the oil recovery produced because it affects the high viscosity and improves the mobility ratio between water and oil, the higher the salinity of the brine used, the lower the oil recovery produced because high salinity will cause high adsorption on the polymer which can affect the injectivity of polymer injection and scenario 7 with polymer concentration of 1200 ppm and salinity of 1000 ppm is the best scenario to be applied in the HB field because it produces RF of 39.71%, which means that RF increases by 12.80% from the water flooding method which only produces RF by 26.91% and increases 0.17% compared to base case.
Actions (login required)
 |
View Item |
