Study on Performance of Preformed Particle Gels on Radial Flows

One of the most notable challenges in oil engineering is the produced water from oil reservoirs. The process of eliminating this water, besides increasing costs and decreasing efficiency of oil production, causing a decline of utilization capacity and even sometimes oil production is cut off and production well is leaved because of high flow of the water. One of the most important and useful methods to control and decrease the water production is the use of Preformed Particle Gels (PPGs) in oil reservoirs, which is recommended. The lower initial cost of this method has caused it to be considered. Material concentration, well salinity, particle size, well temperature and thickness of fractures affect the efficiency of preformed particle gels.According to what has been mentioned, Performance of PPG particles that have been made by polyacrylamide and chromium triacetate, on water shut off ability in porous media is the subject that has been studied. To approve actual well conditions to the condition of our laboratory, a two-dimensional well model for radial flows is used. Hence, smaller gel particles have less effect on oil flow permeability and bigger particles have a more desirable effect on water flow permeability.