Experimental study of the low salinity water injection process in the presence of scale inhibitor and various nanoparticles

Abstract In this work, the process of low salinity water injection (LSWI) into reservoirs at various salt concentrations was simulated in order to study change oil recovery factor during production. The simulation results were compared with experimental data. demonstrated that data good agreement results. addition, formation damage (rock permeability reduction) carbonate core samples evaluated through coreflood experiments LSWI range concentration and temperature 1500–4000 ppm 25–100 °C, respectively. worst scenario LSWI, rock has reached about 83% initial value. Our previous correlation used predict LSWI. case, R-squared value between predicted ratios more than 0.97. Furthermore, analyzed without use DTPMP scale inhibitor (diethylenetriamine penta (methylene phosphonic acid)), nanoparticles (TiO 2 , SiO Al O 3 ). showed provides an increase by 8%. highest observed presence 0.05 wt.%. displacement porous media particles better TiO . 72.2, 62.4, 59.8%, Among studied nanoparticles, lowest values viscosity interfacial tension (IFT) when using Moreover, contact angle increased increasing brine concentration. wt.% reduced 11.2, 10.6, 9.9%,