Perpustakaan Digital ITB

This research was conducted to assess the influence of hysteresis on the recovery factor within the context of Low Salinity Water Injection (LSWI). The research further examined the sensitivity of the curvature parameter and its influence on the recovery factor within the LSWI context. In order to accomplish these objectives, the study employed a literature review to examine prior research and experiments concerning LSWI mechanisms and hysteresis effects. Simulations were conducted utilizing tNavigator and the Carlson model to evaluate the influence of hysteresis on oil recovery. The findings indicated that the application of hysteresis in LSWI led to a 5.21% enhancement in the recovery factor. This enhancement can be ascribed to improved fluid displacement efficiency, enhanced sweep efficiency, and a reduction in the viscous fingering. Furthermore, hysteresis diminishes the volume of water generated as the displacement process attains greater efficiency. The sensitivity analysis of the curvature parameter (E) indicates that an increase in E from 0.05 to 0.1 leads to a 0.4% rise in the recovery factor. Nevertheless, the impact of E on the recovery factor is comparatively minor. The results indicate that the incorporation of hysteresis in the simulation model enhances the oil recovery process, particularly in the contexts of waterflooding and LSWI methods. By choosing the optimal E value, the displacement efficiency of the fluid can be modeled with greater accuracy through the simulator.