...James J. Sheng; Bernd Leonhardt; Nasser Azri Polymer flooding is the most commonly applied chemical enhanced-oil-recovery technique. This paper provides an update on the status of polymer-flooding technology, focusing more on field applications than on theoretical and laboratory research. It covers...

...Randall Seright; Guoyin Zhang; Olatokunbo Akanni; Dongmei Wang Summary For stratified reservoirs with free crossflow and where fractures do not cause severe channeling, improved sweep is often needed after water breakthrough. For moderately viscous oils, polymer flooding is an option for this type...

...C.J. Xie; Z.L. Guan; M. Blunt; H. Zhou Cross-linked polymer flooding can increase oil recovery 10 to 20% over conventional waterflooding, while using a lower concentration of polymer than conventional polymer flooding. Based on production data from a developed oil field, the average incremental oil...

... oil reservoirs in Canada fit this category: they are too thin, deep, or oil saturation is low, or have other undesirable features for a thermal recovery method to be successful. The non-thermal recovery methods considered are: improved waterfloods, polymer flooding, surfactant, caustic and other...

...B.L. Knight; J.S. Rhudy High-molecular-weight, water-soluble polyacrylamides were evaluated for use in the recovery of low-gravity crude oil by polymer flooding. Performance comparisons were made between a high-molecular-weight commercial polymer and two developmental materials higher in molecular...

... polymers. Large size of macromolecules suggests that a great amount of energy will be dissipated, so that the Viscosity of solution could be significantly increased even at low polymer concentration. Currently high-molecular-weight polymers are being used in: polymer flooding, where, by increasing...

...G.E. Slater; S.M. Farouq Ali An experimental and mathematical investigation of oil recovery and sweep efficiency obtained in a two-dimensional polymer flood, for both single and two-phase (oil and water) flow, is presented. The mathematical models developed utilize the concept 'of the polymer...