#TITLE_ALTERNATIVE#

• Main Author: OCTARINA HASIBUAN (NIM : 12212032), RATIH
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/30239
• Institution: Institut Teknologi Bandung

Low salinity waterflooding is one of the Enhance Oil Recovery (EOR) method which modify chemistry component and salinity of the injected water. The first experiment about low salinity waterflooding was done by N.Morrow and he found that there was an improvement in displacement ability by injecting low salinity waterflooding, (Jadhunandan dan Morrow 1991, Yildiz dan Morrow 1996, Tang dan Morrow 1999, Morrow dan Buckley, 2011). However, the mechanisms of low salinity waterflooding are still uncertain. Experiments on sandstone reservoir show that clay content and oil’s polar organic compositions are supposed to be important parameters that support the optimum condition for low salinity waterflooding take effect to oil recovery. <br /> <br /> Some of proposed mechanisms of low salinity waterflooding and experiment’s result will be explained first. Experiments are conducted by simulating low salinity waterflooding using conventional simulator focused on the change of rock’s wettability represented by transformation of relative permeability’s curve. Field X model with various kind of facies related to the clay content is used to understand the effect of clay content to the efficiency of this method. However, the effect of oil’s polar components are not observed due to lack of data. Furthermore, design of experiments are conducted to observe the most significant parameter effect the oil recovery in general. Based on field X simulation, it is concluded that low salinity waterflooding give additional oil recovery by 10%. This result is supported by conventional simulator result and has been validated by special simulator for low salinity waterflooding in commercial simolator. Besides salinity parameter, tipe of rock and oil’s properties has significant effect on oil recovery.