WebInfluenced by water injection, a dominant flow channel is easily formed in the high water cut stage of a conglomerate reservoir, resulting in the inefficient or ineffective circulation of the injected water. With gel flooding as one of the effective development methods to solve the above problems, its parameter optimization determines its final development effect, … Web@article{osti_5536906, title = {Polymer flooding review}, author = {Needham, R B and Doe, P H}, abstractNote = {This paper reviews published results of the use of polymers to improve oil recovery. A discussion of the capabilities of the available types of polymers and where they have been successful is coupled with the principles of the mechanisms of polymer …

Recent Advances in Polymer Flooding in China: Lessons Learned …

WebSep 20, 2024 · The oil flooding experiment of the polymer-surfactant mixture system is to mix the polymer AN125VM with the surfactant, keep the polymer concentration at 2000 mg/L and the surfactant concentration at 0.3 wt%, and then inject 0.3PV of this mixture system after water flooding. WebNov 1, 2011 · Polymer flood is the most widely used chemical EOR method. By adding polymers to water, the water–oil mobility is lowered. Such a change can lead to better sweep efficiency. It is generally believed that polymer flooding cannot reduce the residual oil saturation, but it can help to reach residual oil saturation in shorter time (Du and Guan … the aa rosette

Polymer waterflooding design and implementation

WebJun 4, 2024 · Polymer flooding is a commercially proven technology to enhance oil recovery from mature reservoirs. The main mechanism for improving oil recovery is to increase the viscosity of injection water by adding polymer, thereby creating a favorable mobility ratio for improved volumetric sweep efficiency. WebDec 31, 2014 · Polymer flooding generally has been applied in light- or medium-gravity oil, and, even today, standard industry screening criteria limit its use to viscosities up to 150 cp. Pelican Lake is the site of the first successful application of polymer flooding in much-higher-viscosity oil (1,000–2,500 cp). WebDec 1, 2024 · Water soluble polymer such as Hydrolyzed Polyacrylamide (HPAM) are used as mobility control agent in chemical EOR applications such as polymer, alkali/polymer and alkali/surfactant/polymer flooding. They are dissolved in the injection water so as to decrease the mobility ratio between the pushing fluid and the oil to be displaced ( Sorbie, … theaarouteplanner.co.uk