Microscopic Mechanism of Salt-Bearing Polymer Flooding

Ling Hui Sun; Ji Hong Li; Chun Liu Sun; Yun Long Zhang; Zhi Qing Li

doi:10.4028/www.scientific.net/AMM.556-562.416

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 556-562Microscopic Mechanism of Salt-Bearing Polymer...

Microscopic Mechanism of Salt-Bearing Polymer Flooding

Abstract:

In order to study the mechanism of salt-bearing polymer flooding, using micro-flow technology, experimental study of salt-bearing polymer flooding residual oil process was carried outin two microscopic models of hydrophilic and lipophilic formation.Its microscopic percolation mechanism wasinspected. In hydrophilic model, after injecting salt-bearing polymer residual oil is capturedand migrated, and there is residual oil drawinganddeformation phenomena which is consistent with common polymer; while flooding process due to larger viscoelasticity of salt-bearing polymer, normal stress is generated in the flow, so the cutting action of the residual oil is obvious. In lipophilic model, after injecting salt-bearing polymer, residual oil migration, the film gathering,interface transport, a bridge and drawing phenomenon happened which is consistent with common polymer; polymer difference between salt-bearing polymer andcommon polymeris that from the ordinary and the residual oil film formed by common polymer is flexible and easier to form "emulsion.

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Periodical:

Applied Mechanics and Materials (Volumes 556-562)

Pages:

416-420

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.556-562.416

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Online since:

May 2014

Authors:

Ling Hui Sun*, Ji Hong Li, Chun Liu Sun, Yun Long Zhang, Zhi Qing Li

Keywords:

EOR, Microscopic Flow, Polyacrylamide, Polymer Flooding

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