Rheological Properties of Partially Hydrolyzed Polyacrylamide Seeded by Nanoparticles

Hu, Zhongliang; Haruna, Maje Alhaji; Gao, Hui; Nourafkan, Ehsan; Wen, Dongsheng

doi:10.1021/acs.iecr.6b05036

Cited by 161 publications

(124 citation statements)

References 47 publications

Supporting

Mentioning

118

Contrasting

Order By: Relevance

“…Fluid viscosity (µ) referred to flow mobility in the system (the mobility is the water viscosity to the oil viscosity ratio). These three factors are typically discussed in the EOR studies because they are known to associate in the EOR mechanisms (Anderson 1987;Hu et al 2017;Jamaloei 2015;Jeirani et al 2013;Jiang et al 2016;Mason et al 2010). Table 1 shows the values of the affecting factors with its %OOIP from the coreflooding tests.…”

Section: Almansour Et Al (2017)mentioning

confidence: 99%

Evaluation of effecting factors on oil recovery using the desirability function

Tangparitkul

2018

J Petrol Explor Prod Technol

View full text Add to dashboard Cite

The new method to evaluate the contribution of the related factors to the oil recovery is proposed by using the desirability model. The related factors are re-scaled and combined to be a single parameter in order to correlate with an indicator of oil recovery. The correlated result could be able to predict a trend of the factors and oil recovery as an empirical approach if a good correlation is achieved. Three published works of the coreflooding experiments are examined the effectivenesses and limitations of the proposed model. The analysed plots of desirability and the oil recovery imply an insight into the oil recovery mechanisms by indicating the dominant factors. The results meet a good agreement with the published works. Although the dominant factors are indicated and the correlation trend is able to be determined, the accuracy of the proposed method needs a high number of data sets to increase the statistical reliability.

show abstract

Section: Almansour Et Al (2017)mentioning

confidence: 99%

Evaluation of effecting factors on oil recovery using the desirability function

Tangparitkul

2018

J Petrol Explor Prod Technol

View full text Add to dashboard Cite

show abstract

“…In recent years, improvement of polymers stability by modification of structure or by NPs has gained a great interest . Cheraghian et al .…”

Section: Introductionmentioning

confidence: 99%

Improved rheological properties and stability of multiwalled carbon nanotubes/polymer in harsh environment

Nourafkan

Haruna

Gardy

et al. 2018

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

This work aims to improve the rheological properties and stability of multiwalled carbon nanotubes (MWCNTs)/acrylamide (AA) base skeleton polymer blends at harsh environment of high salinity‐high temperature (HS‐HT) or various pH. Different co/terpolymers have been accomplished to modify the structure of AA polymer by free‐radical copolymerization of AA‐based monomers. Anionic, cationic, and hydrophobic functional groups were used for the synthesis of polyelectrolyte, polyampholytic, and partially hydrophobic AA polymer types. The conversion, molecular weight, and poly dispersity of co/terpolymers have been evaluated by nuclear magnetic resonance (1H‐NMR), gel permeation chromatography, and differential scanning calorimetry analysis. The effects of sonication power, concentration of polymer, and concentration of MWCNTs were also investigated on rheological behavior of co/terpolymers. The results show that negative polyelectrolyte and polyampholytic polymers are the best candidates for the improvement of MWCNTs/polymer stability and viscosity at HS‐HT and alkali environment, respectively. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47205.

show abstract

“…The hydrolysis in HPAM, however, significantly increases at temperatures above 70 °C. As the degree of hydrolysis reaches the critical value of 40%, polymer precipitation (due to bridging effect) occurs in the presence of high concentrations of divalent cations [5,[7][8][9][10][11]. The degree of hydrolysis is defined here as the fraction of the carboxyl residue replacing acrylamide units over the total number of the polymer macromolecule.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Polyacrylamide Based Co-Polymers Enhanced by Functional Group Modifications with Regards to Salinity and Hardness

et al. 2017

View full text Add to dashboard Cite

Abstract:This research aims to test four new polymers for their stability under high salinity/high hardness conditions for their possible use in polymer flooding to improve oil recovery from hydrocarbon reservoirs. The four sulfonated based polyacrylamide co-polymers were FLOCOMB C7035; SUPERPUSHER SAV55; THERMOASSOCIATIF; and AN132 VHM which are basically sulfonated polyacrylamide copolymers of AM (acrylamide) with AMPS (2-Acrylamido-2-Methylpropane Sulfonate). AN132 VHM has a molecular weight of 9-11 million Daltons with 32 mol % degree of sulfonation. SUPERPUSHER SAV55 mainly has about 35 mol % sulfonation degree and a molecular weight of 9-11 million Daltons. FLOCOMB C7035, in addition, has undergone post-hydrolysis step to increase polydispersity and molecular weight above 18 million Daltons but it has a sulfonation degree much lower than 32 mol %. THERMOASSOCIATIF has a molecular weight lower than 12 million Daltons and a medium sulfonation degree of around 32 mol %, and also contains LCST (lower critical solution temperature) type block, which is responsible for its thermoassociative characteristics. This paper discusses the rheological behavior of these polymers in aqueous solutions (100-4500 ppm) with NaCl (0.1-10 wt %) measured at 25 • C. The effect of hardness was investigated by preparing a CaCl 2 -NaCl solution of same ionic strength as the 5 wt % of NaCl. In summary, it can be concluded that the rheological behavior of the newly modified co-polymers was in general agreement to the existing polymers, except that THERMOASSOCIATIF polymers showed unique behavior, which could possibly make them a better candidate for enhanced oil recovery (EOR) application in high salinity conditions. The other three polymers, on the other hand, are better candidates for EOR applications in reservoirs containing high divalent ions. These results are expected to be helpful in selecting and screening the polymers for an EOR application.

show abstract

Rheological Properties of Partially Hydrolyzed Polyacrylamide Seeded by Nanoparticles

Cited by 161 publications

References 47 publications

Evaluation of effecting factors on oil recovery using the desirability function

Evaluation of effecting factors on oil recovery using the desirability function

Improved rheological properties and stability of multiwalled carbon nanotubes/polymer in harsh environment

Assessment of Polyacrylamide Based Co-Polymers Enhanced by Functional Group Modifications with Regards to Salinity and Hardness

Contact Info

Product

Resources

About