Visco-Elastic Property Studies on Polymer Flooding Systems with High Concentrations

Wang, Ji Gang; Du, Quan Qing; Wu, Ping; Hu, Shao; Niu, Pan

doi:10.4028/www.scientific.net/amr.550-553.834

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…The foam stability and viscoelastic modulus were greatly enhanced . Under normal circumstances, within a certain range, the higher the polymer concentration is, the stronger the displacement effect of the foam on the heavy oil, which contributes to improving the crude oil recovery factor . The polymer macromolecules significantly increase the structural strength of the foam multiphase interface, which greatly enhances the foam stability and ensures the stable performance of foam flooding …”

Section: Introductionmentioning

confidence: 99%

Microscopic Mechanical Model Analysis and Visualization Investigation of SiO₂ Nanoparticle/HPAM Polymer Foam Liquid Film Displacing Heavy Oil

et al. 2022

Langmuir

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In this paper, the microscopic mechanisms and macroscopic characteristics of polymer/nanoparticle foam flooding in a heavy oil reservoir environment were studied. Sodium dodecyl sulfate (SDS) surfactant was used as the foaming agent, and the foam was prepared by a combination of partially hydrolyzed polyacrylamide (HPAM) polymer and SiO2 nanoparticles. By performing experiments with the microscopic model, the foam flooding dynamics in the heavy oil reservoir were simulated. Based on the experiments, the formula model was established to evaluate the physicochemical effects between the foam liquid film and oil surface. Finally, the macroscopic characteristics of foam flooding were studied by performing oil displacement experiments with a 2D visual model. The microscopic experiments demonstrated that the foam liquid film could exert multiple actions, such as adsorption, stretching, and cutting on the heavy oil in the reservoir pores. These actions were accompanied by force changes between the foam and heavy oil, and the addition of polymer and nanoparticles further strengthened them. The calculations of the formula model indicated that the polymer and nanoparticles amplified the force between the foam liquid film and heavy oil by 1.95 and 2.2 times, respectively. The 2D visual model experiments suggested that foam flooding could further develop heavy oil after water flooding through its liquid film effects, and the oil recovery efficiency increased from 42.43 to 57.82%. In addition, the polymer and nanoparticles further optimized the oil displacement effect of the foam liquid film, which made the oil recovery efficiency reach 64.77–68.16%.

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Section: Introductionmentioning

confidence: 99%

Microscopic Mechanical Model Analysis and Visualization Investigation of SiO₂ Nanoparticle/HPAM Polymer Foam Liquid Film Displacing Heavy Oil

et al. 2022

Langmuir

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Study on the rheological properties and salt resistance mechanism of an amphiphilic polymer with twin-tailed group

Yang,

Zhang,

Jiang

et al. 2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Visco-Elastic Property Studies on Polymer Flooding Systems with High Concentrations

Cited by 2 publications

References 3 publications

Microscopic Mechanical Model Analysis and Visualization Investigation of SiO₂ Nanoparticle/HPAM Polymer Foam Liquid Film Displacing Heavy Oil

Microscopic Mechanical Model Analysis and Visualization Investigation of SiO₂ Nanoparticle/HPAM Polymer Foam Liquid Film Displacing Heavy Oil

Study on the rheological properties and salt resistance mechanism of an amphiphilic polymer with twin-tailed group

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Visco-Elastic Property Studies on Polymer Flooding Systems with High Concentrations

Cited by 2 publications

References 3 publications

Microscopic Mechanical Model Analysis and Visualization Investigation of SiO2 Nanoparticle/HPAM Polymer Foam Liquid Film Displacing Heavy Oil

Microscopic Mechanical Model Analysis and Visualization Investigation of SiO2 Nanoparticle/HPAM Polymer Foam Liquid Film Displacing Heavy Oil

Study on the rheological properties and salt resistance mechanism of an amphiphilic polymer with twin-tailed group

Contact Info

Product

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Microscopic Mechanical Model Analysis and Visualization Investigation of SiO₂ Nanoparticle/HPAM Polymer Foam Liquid Film Displacing Heavy Oil

Microscopic Mechanical Model Analysis and Visualization Investigation of SiO₂ Nanoparticle/HPAM Polymer Foam Liquid Film Displacing Heavy Oil