Analisis Komprehensif Injeksi Biopolimer Xanthan Gum (XCD) pada Model Fisik Sandpack untuk Optimasi Enhanced Oil Recovery

Dennies Marcelino Assa (STT Migas Balikpapan)
Baiq Maulinda Ulfah (STT Migas Balikpapan)

Jurnal Teknik Industri Terintegrasi (JUTIN)
Vol. 9 No. 3 (2026): July

Preparation of XCD solution using 2.50 g of XCD powder and 500 mL of distilled water mixed with a magnetic stirrer at a speed of 1000 rpm for XCD solution viscosity value is 18.15 cP and density of XCD solution is 1.875 g/mL. Injecting the XCD solution using a syringe pump in order to get a stable rate when pushing fluid from inside the sandpack, water flooding is done first to see the sealing power in the sandpack with a recovery factor obtained of 90%. With 250 mL of XCD solution injected, it can push out 31 mL of light oil trapped in the sandpack and get a recovery factor of 98% from the sandpack. Sweep efficiency of water and XCD flooding obtained is 0.89 where the mobility ratio value (M < 1) is very good sweep efficiency that works and if the mobility ratio (M > 1) sandpack conditions have been damaged such as water fingering in the sandpack.