Characterization and oil recovery enhancement by a polymeric nanogel combined with surfactant for sandstone reservoirs

Abstract The characterization and enhanced oil recovery mechanisms of a nanosized polymeric cross-linked gel are presented herein. A negatively charged nanogel was synthesized using a typical free radical suspension polymerization process by employing 2-acrylamido 2-methyl propane sulfonic acid mono...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Almahfood, Mustafa [verfasserIn] Bai, Baojun [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2020

Schlagwörter:	Nanogel Polymeric nanogel Enhanced oil recovery

Übergeordnetes Werk:	Enthalten in: Petroleum science - Beijing, 2007, 18(2020), 1 vom: 12. Nov., Seite 123-135
Übergeordnetes Werk:	volume:18 ; year:2020 ; number:1 ; day:12 ; month:11 ; pages:123-135

Links:	Volltext

DOI / URN:	10.1007/s12182-020-00525-y

Katalog-ID:	SPR042856256

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520			\|a Abstract The characterization and enhanced oil recovery mechanisms of a nanosized polymeric cross-linked gel are presented herein. A negatively charged nanogel was synthesized using a typical free radical suspension polymerization process by employing 2-acrylamido 2-methyl propane sulfonic acid monomer. The synthesized nanogel showed a narrow size distribution with one peak pointing to a predominant homogeneous droplet size. The charged nanogels were also able to adsorb at the oil–water interfaces to reduce interfacial tension and stabilize oil-in-water emulsions, which ultimately improved the recovered oil from hydrocarbon reservoirs. In addition, a fixed concentration of negatively charged surfactant (sodium dodecyl sulfate or SDS) was combined with different concentrations of the nanogel. The effect of the nanogels combined with surfactant on sandstone core plugs was examined by running a series of core flooding experiments using multiple flow patterns. The results show that combining nanogel and SDS was able to reduce the interfacial tension to a value of 6 Nm/m. The core flooding experiments suggest the ability of the nanogel, both alone and combined with SDS, to improve the oil recovery by a factor of 15% after initial seawater flooding.
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allfields	10.1007/s12182-020-00525-y doi (DE-627)SPR042856256 (DE-599)SPRs12182-020-00525-y-e (SPR)s12182-020-00525-y-e DE-627 ger DE-627 rakwb eng 550 333.7 ASE 58.21 bkl Almahfood, Mustafa verfasserin aut Characterization and oil recovery enhancement by a polymeric nanogel combined with surfactant for sandstone reservoirs 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The characterization and enhanced oil recovery mechanisms of a nanosized polymeric cross-linked gel are presented herein. A negatively charged nanogel was synthesized using a typical free radical suspension polymerization process by employing 2-acrylamido 2-methyl propane sulfonic acid monomer. The synthesized nanogel showed a narrow size distribution with one peak pointing to a predominant homogeneous droplet size. The charged nanogels were also able to adsorb at the oil–water interfaces to reduce interfacial tension and stabilize oil-in-water emulsions, which ultimately improved the recovered oil from hydrocarbon reservoirs. In addition, a fixed concentration of negatively charged surfactant (sodium dodecyl sulfate or SDS) was combined with different concentrations of the nanogel. The effect of the nanogels combined with surfactant on sandstone core plugs was examined by running a series of core flooding experiments using multiple flow patterns. The results show that combining nanogel and SDS was able to reduce the interfacial tension to a value of 6 Nm/m. The core flooding experiments suggest the ability of the nanogel, both alone and combined with SDS, to improve the oil recovery by a factor of 15% after initial seawater flooding. Nanogel (dpeaa)DE-He213 Polymeric nanogel (dpeaa)DE-He213 Enhanced oil recovery (dpeaa)DE-He213 Bai, Baojun verfasserin aut Enthalten in Petroleum science Beijing, 2007 18(2020), 1 vom: 12. Nov., Seite 123-135 (DE-627)565518909 (DE-600)2424436-3 1995-8226 nnns volume:18 year:2020 number:1 day:12 month:11 pages:123-135 https://dx.doi.org/10.1007/s12182-020-00525-y kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_2190 GBV_ILN_2700 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 58.21 ASE AR 18 2020 1 12 11 123-135
spelling	10.1007/s12182-020-00525-y doi (DE-627)SPR042856256 (DE-599)SPRs12182-020-00525-y-e (SPR)s12182-020-00525-y-e DE-627 ger DE-627 rakwb eng 550 333.7 ASE 58.21 bkl Almahfood, Mustafa verfasserin aut Characterization and oil recovery enhancement by a polymeric nanogel combined with surfactant for sandstone reservoirs 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The characterization and enhanced oil recovery mechanisms of a nanosized polymeric cross-linked gel are presented herein. A negatively charged nanogel was synthesized using a typical free radical suspension polymerization process by employing 2-acrylamido 2-methyl propane sulfonic acid monomer. The synthesized nanogel showed a narrow size distribution with one peak pointing to a predominant homogeneous droplet size. The charged nanogels were also able to adsorb at the oil–water interfaces to reduce interfacial tension and stabilize oil-in-water emulsions, which ultimately improved the recovered oil from hydrocarbon reservoirs. In addition, a fixed concentration of negatively charged surfactant (sodium dodecyl sulfate or SDS) was combined with different concentrations of the nanogel. The effect of the nanogels combined with surfactant on sandstone core plugs was examined by running a series of core flooding experiments using multiple flow patterns. The results show that combining nanogel and SDS was able to reduce the interfacial tension to a value of 6 Nm/m. The core flooding experiments suggest the ability of the nanogel, both alone and combined with SDS, to improve the oil recovery by a factor of 15% after initial seawater flooding. Nanogel (dpeaa)DE-He213 Polymeric nanogel (dpeaa)DE-He213 Enhanced oil recovery (dpeaa)DE-He213 Bai, Baojun verfasserin aut Enthalten in Petroleum science Beijing, 2007 18(2020), 1 vom: 12. Nov., Seite 123-135 (DE-627)565518909 (DE-600)2424436-3 1995-8226 nnns volume:18 year:2020 number:1 day:12 month:11 pages:123-135 https://dx.doi.org/10.1007/s12182-020-00525-y kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_2190 GBV_ILN_2700 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 58.21 ASE AR 18 2020 1 12 11 123-135
allfields_unstemmed	10.1007/s12182-020-00525-y doi (DE-627)SPR042856256 (DE-599)SPRs12182-020-00525-y-e (SPR)s12182-020-00525-y-e DE-627 ger DE-627 rakwb eng 550 333.7 ASE 58.21 bkl Almahfood, Mustafa verfasserin aut Characterization and oil recovery enhancement by a polymeric nanogel combined with surfactant for sandstone reservoirs 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The characterization and enhanced oil recovery mechanisms of a nanosized polymeric cross-linked gel are presented herein. A negatively charged nanogel was synthesized using a typical free radical suspension polymerization process by employing 2-acrylamido 2-methyl propane sulfonic acid monomer. The synthesized nanogel showed a narrow size distribution with one peak pointing to a predominant homogeneous droplet size. The charged nanogels were also able to adsorb at the oil–water interfaces to reduce interfacial tension and stabilize oil-in-water emulsions, which ultimately improved the recovered oil from hydrocarbon reservoirs. In addition, a fixed concentration of negatively charged surfactant (sodium dodecyl sulfate or SDS) was combined with different concentrations of the nanogel. The effect of the nanogels combined with surfactant on sandstone core plugs was examined by running a series of core flooding experiments using multiple flow patterns. The results show that combining nanogel and SDS was able to reduce the interfacial tension to a value of 6 Nm/m. The core flooding experiments suggest the ability of the nanogel, both alone and combined with SDS, to improve the oil recovery by a factor of 15% after initial seawater flooding. Nanogel (dpeaa)DE-He213 Polymeric nanogel (dpeaa)DE-He213 Enhanced oil recovery (dpeaa)DE-He213 Bai, Baojun verfasserin aut Enthalten in Petroleum science Beijing, 2007 18(2020), 1 vom: 12. Nov., Seite 123-135 (DE-627)565518909 (DE-600)2424436-3 1995-8226 nnns volume:18 year:2020 number:1 day:12 month:11 pages:123-135 https://dx.doi.org/10.1007/s12182-020-00525-y kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_2190 GBV_ILN_2700 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 58.21 ASE AR 18 2020 1 12 11 123-135
allfieldsGer	10.1007/s12182-020-00525-y doi (DE-627)SPR042856256 (DE-599)SPRs12182-020-00525-y-e (SPR)s12182-020-00525-y-e DE-627 ger DE-627 rakwb eng 550 333.7 ASE 58.21 bkl Almahfood, Mustafa verfasserin aut Characterization and oil recovery enhancement by a polymeric nanogel combined with surfactant for sandstone reservoirs 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The characterization and enhanced oil recovery mechanisms of a nanosized polymeric cross-linked gel are presented herein. A negatively charged nanogel was synthesized using a typical free radical suspension polymerization process by employing 2-acrylamido 2-methyl propane sulfonic acid monomer. The synthesized nanogel showed a narrow size distribution with one peak pointing to a predominant homogeneous droplet size. The charged nanogels were also able to adsorb at the oil–water interfaces to reduce interfacial tension and stabilize oil-in-water emulsions, which ultimately improved the recovered oil from hydrocarbon reservoirs. In addition, a fixed concentration of negatively charged surfactant (sodium dodecyl sulfate or SDS) was combined with different concentrations of the nanogel. The effect of the nanogels combined with surfactant on sandstone core plugs was examined by running a series of core flooding experiments using multiple flow patterns. The results show that combining nanogel and SDS was able to reduce the interfacial tension to a value of 6 Nm/m. The core flooding experiments suggest the ability of the nanogel, both alone and combined with SDS, to improve the oil recovery by a factor of 15% after initial seawater flooding. Nanogel (dpeaa)DE-He213 Polymeric nanogel (dpeaa)DE-He213 Enhanced oil recovery (dpeaa)DE-He213 Bai, Baojun verfasserin aut Enthalten in Petroleum science Beijing, 2007 18(2020), 1 vom: 12. Nov., Seite 123-135 (DE-627)565518909 (DE-600)2424436-3 1995-8226 nnns volume:18 year:2020 number:1 day:12 month:11 pages:123-135 https://dx.doi.org/10.1007/s12182-020-00525-y kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_2190 GBV_ILN_2700 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 58.21 ASE AR 18 2020 1 12 11 123-135
allfieldsSound	10.1007/s12182-020-00525-y doi (DE-627)SPR042856256 (DE-599)SPRs12182-020-00525-y-e (SPR)s12182-020-00525-y-e DE-627 ger DE-627 rakwb eng 550 333.7 ASE 58.21 bkl Almahfood, Mustafa verfasserin aut Characterization and oil recovery enhancement by a polymeric nanogel combined with surfactant for sandstone reservoirs 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The characterization and enhanced oil recovery mechanisms of a nanosized polymeric cross-linked gel are presented herein. A negatively charged nanogel was synthesized using a typical free radical suspension polymerization process by employing 2-acrylamido 2-methyl propane sulfonic acid monomer. The synthesized nanogel showed a narrow size distribution with one peak pointing to a predominant homogeneous droplet size. The charged nanogels were also able to adsorb at the oil–water interfaces to reduce interfacial tension and stabilize oil-in-water emulsions, which ultimately improved the recovered oil from hydrocarbon reservoirs. In addition, a fixed concentration of negatively charged surfactant (sodium dodecyl sulfate or SDS) was combined with different concentrations of the nanogel. The effect of the nanogels combined with surfactant on sandstone core plugs was examined by running a series of core flooding experiments using multiple flow patterns. The results show that combining nanogel and SDS was able to reduce the interfacial tension to a value of 6 Nm/m. The core flooding experiments suggest the ability of the nanogel, both alone and combined with SDS, to improve the oil recovery by a factor of 15% after initial seawater flooding. Nanogel (dpeaa)DE-He213 Polymeric nanogel (dpeaa)DE-He213 Enhanced oil recovery (dpeaa)DE-He213 Bai, Baojun verfasserin aut Enthalten in Petroleum science Beijing, 2007 18(2020), 1 vom: 12. Nov., Seite 123-135 (DE-627)565518909 (DE-600)2424436-3 1995-8226 nnns volume:18 year:2020 number:1 day:12 month:11 pages:123-135 https://dx.doi.org/10.1007/s12182-020-00525-y kostenfrei Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_374 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2014 GBV_ILN_2027 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_2190 GBV_ILN_2700 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 58.21 ASE AR 18 2020 1 12 11 123-135
language	English
source	Enthalten in Petroleum science 18(2020), 1 vom: 12. Nov., Seite 123-135 volume:18 year:2020 number:1 day:12 month:11 pages:123-135
sourceStr	Enthalten in Petroleum science 18(2020), 1 vom: 12. Nov., Seite 123-135 volume:18 year:2020 number:1 day:12 month:11 pages:123-135
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Nanogel Polymeric nanogel Enhanced oil recovery
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isfreeaccess_bool	true
container_title	Petroleum science
authorswithroles_txt_mv	Almahfood, Mustafa @@aut@@ Bai, Baojun @@aut@@
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author	Almahfood, Mustafa
spellingShingle	Almahfood, Mustafa ddc 550 bkl 58.21 misc Nanogel misc Polymeric nanogel misc Enhanced oil recovery Characterization and oil recovery enhancement by a polymeric nanogel combined with surfactant for sandstone reservoirs
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topic_title	550 333.7 ASE 58.21 bkl Characterization and oil recovery enhancement by a polymeric nanogel combined with surfactant for sandstone reservoirs Nanogel (dpeaa)DE-He213 Polymeric nanogel (dpeaa)DE-He213 Enhanced oil recovery (dpeaa)DE-He213
topic	ddc 550 bkl 58.21 misc Nanogel misc Polymeric nanogel misc Enhanced oil recovery
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title	Characterization and oil recovery enhancement by a polymeric nanogel combined with surfactant for sandstone reservoirs
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title_full	Characterization and oil recovery enhancement by a polymeric nanogel combined with surfactant for sandstone reservoirs
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title_sort	characterization and oil recovery enhancement by a polymeric nanogel combined with surfactant for sandstone reservoirs
title_auth	Characterization and oil recovery enhancement by a polymeric nanogel combined with surfactant for sandstone reservoirs
abstract	Abstract The characterization and enhanced oil recovery mechanisms of a nanosized polymeric cross-linked gel are presented herein. A negatively charged nanogel was synthesized using a typical free radical suspension polymerization process by employing 2-acrylamido 2-methyl propane sulfonic acid monomer. The synthesized nanogel showed a narrow size distribution with one peak pointing to a predominant homogeneous droplet size. The charged nanogels were also able to adsorb at the oil–water interfaces to reduce interfacial tension and stabilize oil-in-water emulsions, which ultimately improved the recovered oil from hydrocarbon reservoirs. In addition, a fixed concentration of negatively charged surfactant (sodium dodecyl sulfate or SDS) was combined with different concentrations of the nanogel. The effect of the nanogels combined with surfactant on sandstone core plugs was examined by running a series of core flooding experiments using multiple flow patterns. The results show that combining nanogel and SDS was able to reduce the interfacial tension to a value of 6 Nm/m. The core flooding experiments suggest the ability of the nanogel, both alone and combined with SDS, to improve the oil recovery by a factor of 15% after initial seawater flooding.
abstractGer	Abstract The characterization and enhanced oil recovery mechanisms of a nanosized polymeric cross-linked gel are presented herein. A negatively charged nanogel was synthesized using a typical free radical suspension polymerization process by employing 2-acrylamido 2-methyl propane sulfonic acid monomer. The synthesized nanogel showed a narrow size distribution with one peak pointing to a predominant homogeneous droplet size. The charged nanogels were also able to adsorb at the oil–water interfaces to reduce interfacial tension and stabilize oil-in-water emulsions, which ultimately improved the recovered oil from hydrocarbon reservoirs. In addition, a fixed concentration of negatively charged surfactant (sodium dodecyl sulfate or SDS) was combined with different concentrations of the nanogel. The effect of the nanogels combined with surfactant on sandstone core plugs was examined by running a series of core flooding experiments using multiple flow patterns. The results show that combining nanogel and SDS was able to reduce the interfacial tension to a value of 6 Nm/m. The core flooding experiments suggest the ability of the nanogel, both alone and combined with SDS, to improve the oil recovery by a factor of 15% after initial seawater flooding.
abstract_unstemmed	Abstract The characterization and enhanced oil recovery mechanisms of a nanosized polymeric cross-linked gel are presented herein. A negatively charged nanogel was synthesized using a typical free radical suspension polymerization process by employing 2-acrylamido 2-methyl propane sulfonic acid monomer. The synthesized nanogel showed a narrow size distribution with one peak pointing to a predominant homogeneous droplet size. The charged nanogels were also able to adsorb at the oil–water interfaces to reduce interfacial tension and stabilize oil-in-water emulsions, which ultimately improved the recovered oil from hydrocarbon reservoirs. In addition, a fixed concentration of negatively charged surfactant (sodium dodecyl sulfate or SDS) was combined with different concentrations of the nanogel. The effect of the nanogels combined with surfactant on sandstone core plugs was examined by running a series of core flooding experiments using multiple flow patterns. The results show that combining nanogel and SDS was able to reduce the interfacial tension to a value of 6 Nm/m. The core flooding experiments suggest the ability of the nanogel, both alone and combined with SDS, to improve the oil recovery by a factor of 15% after initial seawater flooding.
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title_short	Characterization and oil recovery enhancement by a polymeric nanogel combined with surfactant for sandstone reservoirs
url	https://dx.doi.org/10.1007/s12182-020-00525-y
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Characterization and oil recovery enhancement by a polymeric nanogel combined with surfactant for sandstone reservoirs

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