The effects of SiO2 nanoparticles on the thermal stability and rheological behavior of hydrolyzed polyacrylamide based polymeric solutions

Giraldo, Lady J.; Giraldo, Maria Alejandra; Llanos, Sebastián; Maya, Gustavo; Zabala, Richard D.; Nassar, Nashaat N.; Franco, Camilo A.; Alvarado, Vladimir; Cortés, Farid B.

doi:10.1016/j.petrol.2017.10.009

Cited by 105 publications

(102 citation statements)

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“…It can be observed that gel syneresis is highly dependent on the nanoparticles chemical nature. Interactions between HPAM and the different nanoparticles are based on the adsorptive phenomena . For most cases, except for SiO 2 nanoparticles, syneresis reduction increases with the increase in nanoparticles concentration.…”

Section: Resultsmentioning

confidence: 99%

“…As the zeta potential increases, the syneresis of the gel system decreases. The carboxyl group that is present in the polymer initially in a 30% is the reason why repulsive intermolecular forces exist and keep polymer molecules in suspension . If Al 2 O 3 nanoparticles are introduced into the polymer solution, they will interact with the negatively charged carboxyl groups and form a three‐dimensional network acting as crosslinker, and due to their high adsorptive surface area as soon as polymer hydrolysis increases they will still be able to interact with the polymer …”

Section: Resultsmentioning

confidence: 99%

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Effect of the nanoparticles in the stability of hydrolyzed polyacrylamide/resorcinol/formaldehyde gel systems for water shut‐off/conformance control applications

Pérez-Robles

Cortés

Franco

2019

J of Applied Polymer Sci

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The main objective of this work is to evaluate the inclusion of nanoparticles to partially hydrolyzed polyacrylamide/resorcinol/formaldehyde gel systems to improve the stability under static and dynamic conditions. Oxide nanoparticles (<100 mgÁL −1 ) of SiO 2 , Al 2 O 3 , MgO, and Cr 2 O 3 were employed and characterized by their physicochemical properties. Gels were prepared and subsequently placed at 70 C for evaluating the nanoparticles influence in gel strength through rheological properties and syneresis measurements. Al 2 O 3 nanoparticles showed the highest potential for the reduction of the syneresis phenomena, followed by MgO and Cr 2 O 3 . The SiO 2 nanoparticles lead to a higher degradation of the gel. As the zeta potential increases, the syneresis of the gel system decreases. The nanoparticles did not significantly affect the storage modulus, describing similar gel strength than the original gel. Also, displacement tests showed an incremental of 64% of oil recovery regarding the system in the absence of Al 2 O 3 nanoparticles.Jia et al. 15 developed an experimental investigation about resorcinol/phenol-formaldehyde crosslinking HPAM (0.3 wt %) gel system and found that by varying resorcinol concentration between 10 and 30 mgÁL −1 and phenol-formaldehyde between 0.4 and 1.2 wt %, a barely flowing gel (codes D and E according to Sydansk's scale from A to I, 16 respectively) was obtained at a Additional Supporting Information may be found in the online version of this article.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Effect of the nanoparticles in the stability of hydrolyzed polyacrylamide/resorcinol/formaldehyde gel systems for water shut‐off/conformance control applications

Pérez-Robles

Cortés

Franco

2019

J of Applied Polymer Sci

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“…In these processes, the addition of nanoparticles can directly affect the melt, as well as the solution viscosities and rheological behaviors of the polymeric matrices. Different nanoparticles such as silica, carbon nanotubes, layered double hydroxide, nanoclay, and metal oxides have all been investigated with regards to enhancing the rheological characteristics of polymers used in EOR applications.…”

Section: Introductionmentioning

confidence: 99%

Improved rheology and high‐temperature stability of hydrolyzed polyacrylamide using graphene oxide nanosheet

Haruna

Pervaiz

et al. 2019

J of Applied Polymer Sci

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Hydrolyzed polyacrylamide (HPAM) is a polymer that extensively used in chemical industry and hydrocarbon extraction and refinery processes, but suffers a common problem of high‐temperature instability. This study improved high‐temperature rheological characteristics of HPAM by using novel graphene oxide (GO) nanosheets. Stable GO dispersions in aqueous HPAM were formulated, and their dynamic and viscoelastic behaviors were studied. The results showed that the addition of GO significantly increased the viscosities and high‐temperature stability of the base polymer fluid, as well as the elastic properties of the dispersion. Spectral data indicated the formation of covalent linkages and electrostatic hydrogen bonding between the GO and the HPAM functional groups, leading to enhanced stability and viscosity that is beneficial for high‐temperature oil recovery. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47582.

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“…In the simulation considering the polymer degradation rate of 0.100 day -1 , the recovery factor after 2,000 days was 6% lower than that in the simulation without considering the polymer degradation. To minimize the impact of the polymer degradation on polymer flooding, some methods have been proposed [4,21], which should be followed by a reduction in polymer degradation to increase polymer flooding efficiency.…”

Section: Discussionmentioning

confidence: 99%

Effect of Polymer Degradation on Polymer Flooding in Homogeneous Reservoirs

Xin

et al. 2018

MATEC Web Conf.

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Abstract. In this paper, physical and numerical simulations were applied to investigate the polymer degradation performance and its effect on polymer enhanced oil recovery (EOR) efficiency in homogeneous reservoirs. Physical experiments were conducted to determine basic physicochemical properties of the polymer, including viscosity, rheology, and degradation. A new mathematical model was proposed, and an in-house simulator was designed to further explore polymer degradation. The results of the physical experiments illustrated that polymer could increase polymer solution viscosity significantly, and the relationship between polymer solution viscosity and polymer concentration exhibited a clear power law relationship. However, the viscosity of a polymer solution with the same polymer concentration decreased with an increase in the shear rate, showing shear thinning performance. Moreover, the viscosity decreased with an increase in time, which was caused by polymer degradation. The validation of the designed simulator was improved when compared to the simulation results using ECLIPSE V2013.1 software. The difference between 0 and 0.1 day -1 in the polymer degradation rate showed a decrease of 6% in oil recovery after 2,000 days, according to simulation results, which demonstrated that polymer degradation had an adverse effect on polymer flooding efficiency.

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The effects of SiO2 nanoparticles on the thermal stability and rheological behavior of hydrolyzed polyacrylamide based polymeric solutions

Cited by 105 publications

References 56 publications

Effect of the nanoparticles in the stability of hydrolyzed polyacrylamide/resorcinol/formaldehyde gel systems for water shut‐off/conformance control applications

Effect of the nanoparticles in the stability of hydrolyzed polyacrylamide/resorcinol/formaldehyde gel systems for water shut‐off/conformance control applications

Improved rheology and high‐temperature stability of hydrolyzed polyacrylamide using graphene oxide nanosheet

Effect of Polymer Degradation on Polymer Flooding in Homogeneous Reservoirs

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