Preparation, Characterization and Coreflood Investigation of Polyacrylamide/Clay Nanocomposite Hydrogel System for Enhanced Oil Recovery

Singh, Rituraj; Mahto, Vikas

doi:10.1080/00222348.2016.1238332

Cited by 23 publications

(13 citation statements)

References 28 publications

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“…The water and oil viscosities are not changed in the whole process, thus l w1 = l w2 and l o1 = l o2 (Mohammadi et al 2015;Singh and Mahto 2016a).…”

Section: Sand Pack Flooding Experimentsmentioning

confidence: 99%

Synthesis, characterization and evaluation of polyacrylamide graft starch/clay nanocomposite hydrogel system for enhanced oil recovery

Singh

Mahto

2017

Pet. Sci.

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In this paper the suitability of a graft polymer nanocomposite hydrogel system for enhanced oil recovery was examined using polyacrylamide graft starch/clay nanocomposite (a laboratory synthesized product) and chromium (III) acetate (crosslinker). X-ray diffraction analysis, Fourier transform infrared spectrometry analysis, field-emission scanning electron microscopy and transmission electron microscopy were carried out to reveal the laboratory synthesized product as a nanocomposite. The effects of various parameters like salt concentration, pH, temperature, polymer concentration and crosslinker concentration on the properties of the developed gel system were systematically evaluated. The thermal stability of the nanocomposite gel and the conventional gel system were also determined by thermogravimetric analysis. The graft polymer nanocomposite gel system exhibited acceptable gel strength, gelation time and gel stability compared with the conventional gel system. The nanocomposite gels prepared using a low crosslinker concentration showed higher gel strength and required longer gelation time than the conventional gel which is more desirable properties for the effective placement of gel during enhanced oil recovery operations. In addition, sand pack flooding experiments show that the graft polymer nanocomposite gels had better plugging capacity than the conventional gel systems under reservoir conditions. Hence, this gel system may be suitable in the water shutoff treatments required for enhanced oil recovery from oilfields.

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“…The water and oil viscosities are not changed in the whole process, thus l w1 = l w2 and l o1 = l o2 (Mohammadi et al 2015;Singh and Mahto 2016a).…”

Section: Sand Pack Flooding Experimentsmentioning

confidence: 99%

Synthesis, characterization and evaluation of polyacrylamide graft starch/clay nanocomposite hydrogel system for enhanced oil recovery

Singh

Mahto

2017

Pet. Sci.

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“…In the curve of RC/PAAm5‐5, the peaks of 3188 and 1652 cm −1 correspond to the stretching vibration of NH and in‐plane deformation vibration of NH 2 . And the peaks of 1605 and 1417 cm −1 ascribe to the carbonyl moiety and the presence of the vibration of CN, respectively . Those means a PAAm network is successfully constructed in the RC hydrogel, and the RC/PAAm DN hydrogel is prepared.…”

Section: Resultsmentioning

confidence: 96%

“…And the peaks of 1605 and 1417 cm −1 ascribe to the carbonyl moiety and the presence of the vibration of C N, respectively. 39,40 Those means a PAAm network is successfully constructed in the RC hydrogel, and the RC/PAAm DN hydrogel is prepared.…”

Section: Synthesis and Structure Of Rc/paam Dn Hydrogelsmentioning

confidence: 99%

Robust hydrogel of regenerated cellulose by chemical crosslinking coupled with polyacrylamide network

Yang

Wei

et al. 2019

J of Applied Polymer Sci

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Regenerated cellulose/polyacrylamide (RC/PAAm) double network (DN) hydrogels are composed of cellulose crosslinked by epichlorohydrin (ECH) and chemical‐crosslinked PAAm. The prepared RC/PAAm DN hydrogels present enhanced strength, good shape recovery property, excellent energy dissipation properties, decreased equilibrium water content, and low equilibrium swelling ratio (SR). The compressive strength and modulus of RC/PAAm hydrogel are about 4.3 and 11.5 times compared to that of RC hydrogel, respectively. Intriguingly, the chemical crosslinking between ECH and cellulose chains could increase the distance between cellulose chains. Consequently, the increasing molar ratio of ECH to glucose leads to larger SRs and decreased mechanical strength of the hydrogels. Additionally, higher PAAm contents lead to more densely crosslinked networks, and thus decreasing the SRs and improving the mechanical strength of the hydrogels. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47811.

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“…The investigated samples showed characteristic peaks that were in accordance with the results of other studies of PHPA, PEI, and CFA. [27,30,31,32,33,34] The infrared spectrum of the polymeric network exhibited bands in the range of 3,600-3,100 cm −1 , assigned to the axial deformation of NH and OH; a peak at 1,655 cm −1 , attributed to the CO axial bond of the amides groups; a prominent peak at 1,544 cm −1 , attributed to NH stretching; a peak at 1,440 cm −1 , assigned to CH 2 deformation of the carbon chain; peaks at1,394 and 1,317 cm −1 , assigned to the axial deformation of CN and CO, respectively; and at 1,110 and 1,040 cm −1 , associated with the stretching of CN and CO bonds.…”

Section: Tan δ =mentioning

confidence: 99%

Behavior of partially hydrolyzed polyacrylamide/polyethyleneimine reinforced with coal fly ash for preformed particle hydrogels

Pereira

Oliveira

et al. 2020

J of Applied Polymer Sci

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High water production and low oil recovery are attributable to reservoir heterogeneity, making extraction economically inefficient. To improve oil production, it is important to solve permeability issues, to allow a more uniform and efficient sweep. In recent years, several studies of preformed particle gel (PPG) have been performed reduce reservoir heterogeneity and enhance oil recovery. In this work, the effect of coal fly ash (CFA) on hydrolyzed polyacrylamide (PHPA) crosslinked with polyethyleneimine PPG were evaluated regarding thermal, rheological, and structural properties. The rheological results showed an increase in elastic behavior with the presence of CFA. Thermal analysis revealed degradation resistance of 271% with only 1.0% CFA. The swelling test proved that the presence of CFA supports the absorption of a brine solution. The results suggest a significant increase in properties assessed with small CFA contents due to a strong interaction between CFA and three‐dimensional polymer networks.

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Preparation, Characterization and Coreflood Investigation of Polyacrylamide/Clay Nanocomposite Hydrogel System for Enhanced Oil Recovery

Cited by 23 publications

References 28 publications

Synthesis, characterization and evaluation of polyacrylamide graft starch/clay nanocomposite hydrogel system for enhanced oil recovery

Synthesis, characterization and evaluation of polyacrylamide graft starch/clay nanocomposite hydrogel system for enhanced oil recovery

Robust hydrogel of regenerated cellulose by chemical crosslinking coupled with polyacrylamide network

Behavior of partially hydrolyzed polyacrylamide/polyethyleneimine reinforced with coal fly ash for preformed particle hydrogels

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