TY - JOUR KW - Crude oil; Efficiency; Floods; Flow patterns; Glass; Oil well flooding; Porous materials; Sandstone; Well flooding KW - Commercial polymers; Enhanced oil recovery; Heterogeneous porous media; High resolution camera; Polymer injection; Sandstone reservoirs; Solution concentration; Sweep efficiency KW - Enhanced recovery JF - Journal of Petroleum Exploration and Production Technology N2 - In water flooding process, volumetric sweep efficiency and oil recovery can be enhanced using polymer to increase the viscosity of water. As a result, polymer flooding has higher recovery as compared to water flooding due to front stability and reduction of fingering problem. In this research work, a set of polymer flooding runs were carried out using glass-type micromodels. The micromodels were fabricated to have homogeneous and heterogeneous flow patterns. They were positioned horizontally and saturated with a heavy crude oil sample taken from an Iranian oil field before starting the injection. Three commercial polymers were used in this study. Whole process was photographed continuously with a high-resolution camera to monitor the displacement of polymer solution in the micromodels. As a part of this study, the effect of different parameters including polymer solution concentration, injection flow rate and heterogeneity on performance of polymer flooding was investigated. On top of the regular homogeneous and heterogeneous flow patterns used in this study, a heterogeneous flow pattern mimicking sandstone reservoirs was created based on the image of a thin section of a sandstone (outcrop) and polymer front movement was observed during injection. © 2018, The Author(s). SN - 21900558 IS - 1 SP - 627 A1 - Hosseini, S.J. A1 - Foroozesh, J. Y1 - 2019/// ID - scholars11756 UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85047904794&doi=10.1007%2fs13202-018-0492-x&partnerID=40&md5=18b12466813c8a8348bb3adebdde79c0 VL - 9 EP - 637 PB - Springer Verlag TI - Experimental study of polymer injection enhanced oil recovery in homogeneous and heterogeneous porous media using glass-type micromodels N1 - cited By 27 AV - none ER -