A Study on Water Quality Optimization of the Polymer/
Surfactant System

doi:10.11885/j.issn.1674-5086.2013.12.02.01

Abstract

Abstract:

Polymer/ surfactant flooding with water has a significant impact on the system performance，but has not been fully research
in China. In this paper，with the polyacrylamide HTPW – 112（ionic polymer）and surfactant DWS – 3（nonionic）preparation
of polymer/surfactant flooding for examples，we make a large number of laboratory experiments to evaluate the impact of water
quality indexes such as salinity，iron ion content and bacterial on the viscosity of the polymer/surfactant flooding，which provides
a new approach for the optimization method of the poly water in the similar reservoir. Experiments show that the viscosity
of polymer/ surfactant flooding increases when the sodium ion content is above 3 900 mg/L，and the system has certain salt
thickening performance. The downward trend of the system viscosity increases when single magnesium and single calcium ions
content are more than 500 mg/L. When SRB is than 5 per milliliter，TGB more than 100 per milliliter，and FB more than 100
per milliliter，the system viscosity will reduce greatly. Bacterial metabolites are one of the important factors causing viscosity
reduce.

Key words: polymer/ surfactant system, viscosity, preparation of wate, water quality, optimization experiment

Chen Cong1，2, Tang Hongming2*, Han Lijuan2, Cui Dandan3, Yan Xi3. A Study on Water Quality Optimization of the Polymer/
Surfactant System[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2013.12.02.01.

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