Influence of structure and composition of poly(acrylamide-g-propylene oxide) copolymers on drag reduction of aqueous dispersions

Reis, Leidiane G.; Oliveira, Ingrid P.; Pires, Renata V.; Lucas, Elizabete F.

doi:10.1016/j.colsurfa.2016.05.022

Cited by 19 publications

(8 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A DR efficiency of 33% was achieved with PAAM-PEO in water [78]. Reis et al [79] carried out an experiment using PAAM-g-poly(propylene oxide) (PAAM-g-PPO) as a water-soluble drag reducer. The grafted amphiphilic copolymer PAAM-g-PPO produced a better DR effect than pure PAAM based on different parameters, including the average molecular weight, molecular chain length, intrinsic viscosity, and polymer size distribution.…”

Section: Namementioning

confidence: 99%

Applications of Water-Soluble Polymers in Turbulent Drag Reduction

2017

View full text Add to dashboard Cite

Water-soluble polymers with high molecular weights are known to decrease the frictional drag in turbulent flow very effectively at concentrations of tens or hundreds of ppm. This drag reduction efficiency of water-soluble polymers is well known to be closely associated with the flow conditions and rheological, physical, and/or chemical characteristics of the polymers added. Among the many promising polymers introduced in the past several decades, this review focuses on recent progress in the drag reduction capability of various water-soluble macromolecules in turbulent flow including both synthetic and natural polymers such as poly(ethylene oxide), poly(acrylic acid), polyacrylamide, poly(N-vinyl formamide), gums, and DNA. The polymeric species, experimental parameters, and numerical analysis of these water-soluble polymers in turbulent drag reduction are highlighted, along with several existing and potential applications. The proposed drag reduction mechanisms are also discussed based on recent experimental and numerical researches. This article will be helpful to the readers to understand better the complex behaviors of a turbulent flow with various water-soluble polymeric additives regarding experimental conditions, drag reduction mechanisms, and related applications.

show abstract

Section: Namementioning

confidence: 99%

Applications of Water-Soluble Polymers in Turbulent Drag Reduction

2017

View full text Add to dashboard Cite

show abstract

“…Therefore, DRAs are particularly gaining tremendous attention in different industrial areas, such as hydraulic fracturing [ 13 , 14 ], oil transportation pipelines [ 15 ], and district heating and cooling [ 16 ]. Polymers (such as polyacrylamides, polyethylene oxide, and guar gum) [ 17 , 18 ] and surfactants (such as cetyltrimethylammonium chloride and oleyldimethylamine oxide) [ 19 , 20 ] have been widely used as DRAs. In recent years, polyacrylamide and its derivatives have been widely used in hydraulic fracturing as DRAs [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Drag Reduction Performance of Clear Fracturing Fluid Using Wormlike Surfactant Micelles and Magnetic Nanoparticles under a Magnetic Field

Jia

et al. 2021

Nanomaterials

View full text Add to dashboard Cite

This paper examines a new study on the synergistic effect of magnetic nanoparticles and wormlike micelles (WLMs) on drag reduction. Fe3O4 magnetic nanoparticles (FE-NPs) are utilized to improve the performance of viscoelastic surfactant (VES) solutions used as fracturing fluids. The chemical composition and micromorphology of the FE-NPs were analyzed with FT-IR and an electron microscope. The stability and interaction of the WLM-particle system were studied by zeta potential and cryo-TEM measurements. More importantly, the influences of the temperature, FE-NP concentration, magnetic field intensity, and direction on the drag reduction rate of WLMs were systematically investigated in a circuit pipe flow system with an electromagnetic unit. The experimental results show that a suitable content of magnetic nanoparticles can enhance the settlement stability and temperature resistance of WLMs. A magnetic field along the flow direction of the fracturing fluid can improve the drag reduction performance of the magnetic WLM system. However, under a magnetic field perpendicular to the direction of fluid flow, an additional flow resistance is generated by the vertical chaining behavior of FE-NPs, which is unfavorable for the drag reduction performance of magnetic VES fracturing fluids. This study may shed light on the mechanism of the synergistic drag reduction effects of magnetic nanoparticles and wormlike micelles.

show abstract

“…More than 24,000 km of product oil pipelines have been constructed and used in China by 2018. 1 Therefore, it is necessary to improve transport efficiency and satisfy logistics demands. 2 The drag reduction technology of pipelines mainly includes rib drag reduction, viscous drag reduction, bionic drag reduction, and wall vibration drag reduction, among which the drag reducer technology belongs to viscous drag reduction.…”

Section: Introductionmentioning

confidence: 99%

“…More than 24,000 km of product oil pipelines have been constructed and used in China by 2018 . Therefore, it is necessary to improve transport efficiency and satisfy logistics demands .…”

Section: Introductionmentioning

confidence: 99%

Optimization of Application Conditions of Drag Reduction Agent in Product Oil Pipelines

et al. 2020

View full text Add to dashboard Cite

Drag reduction performance was studied with a rotating disk instrument in the laboratory, and experiments show that there is an initial rapid growth stage and stability stage for drag reduction ratio change. The higher the rotational speed, the larger the initial drag reduction ratio is; the larger the concentration, the shorter the drag reduction stabilization time is. Under high concentration and high speed, the drag reduction onset time is short. Because of the shear degradation, the Reynolds number should be taken into account during use. Through a comparison of diesel properties after adding agents with national standard, it is confirmed that drag reduction agents could be used in this pipeline.

show abstract

Influence of structure and composition of poly(acrylamide-g-propylene oxide) copolymers on drag reduction of aqueous dispersions

Cited by 19 publications

References 50 publications

Applications of Water-Soluble Polymers in Turbulent Drag Reduction

Applications of Water-Soluble Polymers in Turbulent Drag Reduction

Experimental Study on the Drag Reduction Performance of Clear Fracturing Fluid Using Wormlike Surfactant Micelles and Magnetic Nanoparticles under a Magnetic Field

Optimization of Application Conditions of Drag Reduction Agent in Product Oil Pipelines

Contact Info

Product

Resources

About