Chapter 7 Polymer Flooding

Caenn, Ryen; Burnett, David; Chilingarian, George V.

doi:10.1016/s0376-7361(08)70459-x

Cited by 8 publications

(2 citation statements)

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“…Caenn et al (1985) explained that the main function of the polymers is to control mobility of water an provide favorable mobility ratio by increasing the viscosity of the water and decreasing its mobility. Thus, the mobility ratio is decreased and allow oil to move faster into producing wells.…”

Section: Mechanism Of Polymer Floodingmentioning

confidence: 99%

“…Detling (1944) investigated the effect of adding polymer solution during water flooding process and observed that it resulted in better sweeping efficiency and that was one of the chemical enhanced oil recovery methods. Caenn et al (1985) stated that the use of water soluble polymers is considered an extension of water flooding and is one of the most promising enhanced oil recovery techniques. In polymer flooding operations, high molecular weight polymers are used.…”

Section: Introductionmentioning

confidence: 99%

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Optimum Polymer Concentration in EOR

Moussa¹,

Attia²

2016

International Advanced Research Journal in Science, Engineering

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Polymer Flooding is one of the most economic attractive EOR techniques which are used to improve the sweep efficiency, and in turn extract large fraction of the residual oil after primary recovery. The selection of the optimum polymer concentration should be considered as a main step in designing a polymer flooding project since it affects both the technical and economic feasibility of the project. There are several factors such as shearing, temperature, salinity and adsorption influencing the polymer concentration and viscosity required for achieving favorable mobility ratio. Thus, the impact of these factors should be considered while selecting the optimum concentration. The objectives of this research are to investigate the effect of polymer types, concentration, and adsorption and slug sizes on oil recovery at low and extremely high salinity. Rheological behavior of two types of polymer: Xanthan gum and PAM were measured in high salinity high temperature (HSHT). The effect of polymer adsorption was measured to determine the optimum polymer concentration. Results showed that the optimum polymer concentration was 500 ppm based on the relative permeability data and shear rate of 10s −1 .in porous media. In addition, the effects of polymer concentration and slug size on cumulative oil recovery were investigated showing that the recovery factor increases with increasing the polymer concentration with an optimum slug size 0.6 PV. These extensive laboratory tests conducted will help in selecting the optimum polymer slug, concentration at reservoir conditions that will provide the favorable mobility ratio. The economic evaluation of the project based on the simulation study and polymer properties measured in the lab showed that the polymer flooding is economically feasible, since the project earned much higher NPV than water flooding. . A new correlation will be developed to be used to calculate the resistance factor at different shear rates. Finally, The economic feasibility of the selected concentration and slug size are determined.

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Section: Mechanism Of Polymer Floodingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%