Hydrophobically associating acrylamide‐based copolymer for chemically enhanced oil recovery

Ye, Zhongbin; Feng, Mang; Gou, Shaohua; Liu, Man; Huang, Zhegang; Liu, Tongyi

doi:10.1002/app.39424

Cited by 56 publications

(21 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Polymers with unique architectures are often characterized in terms of surface morphology (through scanning electron microscopy (SEM), transmission electron microscopy (TEM), etc.) [29,34,35,37,38,74]. The direct imaging of polymer samples in aqueous solutions can be achieved using low temperature techniques, such as cryo-TEM [74,75] or environmental scanning electron microscopy (performed at −3.5 • C in the study by Zhong et al [29]).…”

Section: Polymer Microstructurementioning

confidence: 99%

“…Often, the copolymer structure is assumed based on the synthesis technique (i.e., random comonomer distribution from free-radical polymerization, microblock structure from micellar polymerization, etc.) [26,77] or it is not mentioned at all [11,30,32,34,35,37,38,74]. Making assumptions based on synthesis technique is a good starting point (and is better than ignoring the microstructure altogether!…”

Section: Polymer Microstructurementioning

confidence: 99%

“…The dynamic viscosity (and/or the apparent viscosity) is a critical aspect of polymer-flooding studies. Researchers have reported using Brookfield viscometers [11,25,26,28,29,31,34,36,51,104,110], cone and plate rheometers [12,24,31,61,71], and/or concentric cylinder viscometers [27,31,52,62,105] to characterize their materials. Additionally, specialized (sometimes modular) rheometers have been mentioned in the polymer-flooding literature (see, for example, [45,49,101,103]).…”

Section: Rheological Propertiesmentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of Polymeric Materials for Chemical Enhanced Oil Recovery

2020

View full text Add to dashboard Cite

Polymer flooding is a promising enhanced oil recovery (EOR) technique; sweeping a reservoir with a dilute polymer solution can significantly improve the overall oil recovery. In this overview, polymeric materials for enhanced oil recovery are described in general terms, with specific emphasis on desirable characteristics for the application. Application-specific properties should be considered when selecting or developing polymers for enhanced oil recovery and should be carefully evaluated. Characterization techniques should be informed by current best practices; several are described herein. Evaluation of fundamental polymer properties (including polymer composition, microstructure, and molecular weight averages); resistance to shear/thermal/chemical degradation; and salinity/hardness compatibility are discussed. Finally, evaluation techniques to establish the polymer flooding performance of candidate EOR materials are described.

show abstract

Section: Polymer Microstructurementioning

confidence: 99%

Section: Polymer Microstructurementioning

confidence: 99%

Section: Rheological Propertiesmentioning

confidence: 99%

See 1 more Smart Citation

Evaluation of Polymeric Materials for Chemical Enhanced Oil Recovery

2020

View full text Add to dashboard Cite

show abstract

“…[1][2][3][4][5] Chemical flooding, such as surfactant flooding, polymer flooding, and alkali flooding, is an efficient way to get enhanced oil recovery (EOR) according to various studies. 6,7 Because of its feasible and economical operation and its ability to efficiently reduce the mobility ratio, polymer flooding has shown significant adaptability to existing reservoir conditions. [8][9][10] Partially hydrolyzed polyacrylamide (HPAM), one of the most widely used thickeners or modifiers in EOR, has been reported by many researchers.…”

Section: Introductionmentioning

confidence: 99%

Modification of a nicotinic acid functionalized water‐soluble acrylamide sulfonate copolymer for chemically enhanced oil recovery

Gou

Liu

et al. 2013

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

N,N-Diallyl nicotinamide (DANA) and acrylic acid (AA) were used to react with acrylamide (AM) and synthesize a novel nicotinic acid functionalized water-soluble copolymer AM/AA/DANA by redox free-radical polymerization. Then, the acrylamide/sodium acrylamido methanesulfonate/acrylic acid/N,N-diallyl nicotinamide (AM/AMS/AA/DANA) was obtained by the introduction of the ASO 3 2 group into AM/AA/DANA after sulfomethylation. The optimal reaction conditions, such as the monomer ratio, initiator concentration, reaction temperature, and pH of the copolymerization or sulfomethylation, were investigated. Both AM/AA/ DANA and AM/AMS/AA/DANA were characterized by IR spectroscopy, 1 H-NMR, scanning electron microscopy, and intrinsic viscosity testing. We found that the AM/AMS/AA/DANA had a remarkable temperature tolerance (120 C, viscosity retention rate 5 39.8%),shear tolerance (1000 s 21 , viscosity retention rate 5 23.3%), and salt tolerance (10 g/L NaCl, 1.5 g/L MgCl 2 , 1.5 g/L CaCl 2 , viscosity retention rates 5 37.4, 27.5, and 21.6%). In addition, the result of the core flood test showed that the about 13.1% oil recovery could be enhanced by 2.0 g/L AM/AMS/AA/DANA at 70

show abstract

“…Such polymers have been in the center of attention over the past three decades . Among these copolymers, the hydrophobically associating polyacrylamides (HAPAM) are specifically remarkable as they are relatively inexpensive and nontoxic, in addition to providing some unique rheological properties for applications in the enhanced oil recovery . Due to the presence of hydrophobic groups, there are intramolecular and intermolecular associations in the aqueous solution systems .…”

Section: Introductionmentioning

confidence: 99%

Rheological evaluation of synthesized template‐hydrophobically modified acrylamide based copolymers in brine

Khak

Kaffashi

Hemmati

2016

J of Applied Polymer Sci

View full text Add to dashboard Cite

The newly hydrophobically modified associating acrylamide‐based copolymers were prepared by the inverse miniemulsion polymerization method in order to investigate the copolymers rheological and associating properties in water and brine solutions. Dimethyldodecane (2‐acrylamidopropyl) ammonium bromide (DDPAB) was synthesized and used as a hydrophobic monomer and was later copolymerized with acrylamide in the presence of poly(acrylic acid‐co‐maleic acid) and various molecular weights of poly(acrylic acid) as templates. The chemical compositions and functional groups of the resulting hydrophobic monomer and copolymers were characterized using the 1H nuclear magnetic resonance and Fourier transform‐infrared spectroscopy. According to the studies on the solutions viscosity behavior, incorporation of small amount of hydrophobic monomer improved the thickening properties due to the intermolecular hydrophobic association. The apparent viscosity of the copolymers with a template was much greater than those prepared without a template. The molecular weight of the template strongly influenced the thickening behaviors of the copolymers. A template copolymer with 1 mol % of a hydrophobic monomer was the one most efficient. The addition of electrolyte saline improved the polarization of the solutions and enhanced the thickening ability. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43588.

show abstract

Hydrophobically associating acrylamide‐based copolymer for chemically enhanced oil recovery

Cited by 56 publications

References 35 publications

Evaluation of Polymeric Materials for Chemical Enhanced Oil Recovery

Evaluation of Polymeric Materials for Chemical Enhanced Oil Recovery

Modification of a nicotinic acid functionalized water‐soluble acrylamide sulfonate copolymer for chemically enhanced oil recovery

Rheological evaluation of synthesized template‐hydrophobically modified acrylamide based copolymers in brine

Contact Info

Product

Resources

About