Document Type: Research Article
Petroleum Engineering Department, Amir-Kabir University of Technology, Tehran, Iran
Material Engineering, Swansea, United Kingdom
EOR Center,Research Institute of Petroleum Industry (RIPI), TEHRAN, I.R. IRAN
Water injection is used as a widespread IOR/EOR method and promising formation damages (especially mechanical ones) is a crucil challenge in near wellbore of injection wells. The mangassium oxide (MgO) nanoparticles (NPs) considered in the article under water flooding experiment tests to monitor the promising mechanical formation damage (size exclusion) in lab mechanismic scale include micro scale classical deep bed filtration model, permeability, and pore size distribution. The averaged upper scale equations were constructed on the water injection basis on the presence of NPs. The model validation to adjust the equation of state was obtained on the basis of fluid samples from the laboratory and simulation tests. The permeability decline (up to 50% initial permeability) was important when optimum value of capturing probability coefficient (pa) is 0.7 mismatched on the conventional simulation results. Pore size distribution in each simulation time step based on retention concentrations determined in the sandstone samples. Formation damage analyses on presence of NPs showed that modification of the static reservoir models has excellent potential in regard to porosity and permeability maps, in large-scale simulation. This study displays an improved approach to NPs’ movement through porous medium which will act as a benchmark for future waterflooding EOR projects in sandstone oil reservoirs or similar basins all over the world.