Ultrafiltration of Produced Water from Polymer Flooding with Hydrophilized Polyvinylidene Fluoride Membrane for Reuse

Jun Xu; Yong Sun; Wen Xin Shi; Shui Li Yu; Ling Zhi Jia

doi:10.4028/www.scientific.net/AMR.284-286.420

Paper Titles

Certification for Effect of Environment on Composite Properties
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Processibility and Mechanical Properties of Mullite-Filled Styrene Butadiene Rubber Composites
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Theory Calculation of Diffussion Coefficient Based on Molten Slag Structure
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The Design for the Main Reaction System of a New Welding Material
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Ultrafiltration of Produced Water from Polymer Flooding with Hydrophilized Polyvinylidene Fluoride Membrane for Reuse
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Dispersion and Preparation of Polyurethane/Carbon Nanotubes Composites
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Dynamic Mechanical Property of Quasi Constrained Layer Structural Piezoelectric Ceramic/Carbon Black/Epoxy Resin Composites
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Mathematical Model for Evaluating Cylindricity Errors by Minimum Zone Method
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Method on Accelerated Rupture Life Evaluation for Composite Material Based on Type-II Censored Data
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Ultrafiltration of Produced Water from Polymer Flooding with Hydrophilized Polyvinylidene Fluoride Membrane for Reuse

Abstract:

To meet the oilfield reinjection water quality for low and ultra-low permeability reservoirs in China, a hydrophilized polyvinylidene fluoride membrane manufactured by our laboratory was used for ultrafiltration of the produced water from polymer flooding in Daqing Oilfield. The results showed that a temperature of 37 °C, volume reduction factor (VRF) of 4, TMP of 0.20 MPa and crossflow velocity of 4.5 m/s were the feasible operation conditions for the membrane, and the average flux could reach 75 L/(m²h). In the permeate, the total suspension substance was consistently below detection limits (2.5 mg/L) and medium grain size was undetectable, and the content of hydrolyzed polyacrylamide, crude oil and turbidity were respectively lower than 50 mg/L, 1 mg/L and 1 NTU, all of which reached the highest oilfield reinjection water quality in China and demonstrated the membrane had a good anti-fouling characteristics.