Effect of in-situ emulsification of surfactant on the enhanced oil recovery in low-permeability reservoirs
Surfactant flooding technology has become an important treatment for the enhance oil recovery (EOR) in low-permeability reservoirs, and which behavior of surfactant is more important for EOR, lowering interfacial tension (IFT) or in-situ emulsification, is still debatable. In this work, to ascertain...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Li, Xiaoxiao [verfasserIn] Yue, Xiang'an [verfasserIn] Zou, Jirui [verfasserIn] Yan, Rongjie [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2021 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Colloids and surfaces / A - Amsterdam [u.a.] : Elsevier Science, 1993, 634 |
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| Übergeordnetes Werk: |
volume:634 |
| DOI / URN: |
10.1016/j.colsurfa.2021.127991 |
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ELV007154658 |
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| 520 | |a Surfactant flooding technology has become an important treatment for the enhance oil recovery (EOR) in low-permeability reservoirs, and which behavior of surfactant is more important for EOR, lowering interfacial tension (IFT) or in-situ emulsification, is still debatable. In this work, to ascertain the dominating behavior of surfactant, a series of comparative experiments were performed to observe their dynamic flooding performances in artificial cores over a permeability range between 5 mD and 50 mD. Besides, a 2D heterogeneous model was used to explore the effect of micro heterogeneity on surfactant flooding. At last, the adaptable limits, including heterogeneous degree and injective time, were further discussed. The results show, the overall oil recovery increases with permeability, while their flooding dynamics also changes with permeability. The results show, in-situ emulsification of surfactant plays the key role in oil recovery compared with IFT reduction, especially with the cores’ permeability decreasing. On the one hand, the strong emulsifying capability of surfactant is advantageous in dispersing the residual oil to reduce oil saturation. On the other hand, the formation of amounts of emulsion droplets is useful to block the pore and further contributes to establish pressure variation and delaying water-cut raising. Meanwhile, strong emulsifying capacity of surfactant is positive to improve the swept efficiency in micro heterogeneous distributions and avoid the formation of micro water channel. Lastly, the adaptable conditions tests indicate the extremely strong heterogeneity and low crude oil saturation are the crucial factor to affect the EOR performances owing to the ease of in-situ emulsification formation. Therefore, this finding of this study can help for better understanding of contribution of in-situ emulsification of surfactant for EOR and its limitations in low-permeability reservoirs, which could be a candidate with great potentials for field application and economic returns. | ||
| 650 | 4 | |a Surfactant | |
| 650 | 4 | |a Enhanced oil recovery (EOR) | |
| 650 | 4 | |a Low-permeability reservoirs | |
| 650 | 4 | |a Adaptable limits | |
| 650 | 4 | |a Emulsifying capability | |
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10.1016/j.colsurfa.2021.127991 doi (DE-627)ELV007154658 (ELSEVIER)S0927-7757(21)01860-4 DE-627 ger DE-627 rda eng 540 DE-600 35.18 bkl 33.68 bkl 52.78 bkl 58.20 bkl Li, Xiaoxiao verfasserin aut Effect of in-situ emulsification of surfactant on the enhanced oil recovery in low-permeability reservoirs 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Surfactant flooding technology has become an important treatment for the enhance oil recovery (EOR) in low-permeability reservoirs, and which behavior of surfactant is more important for EOR, lowering interfacial tension (IFT) or in-situ emulsification, is still debatable. In this work, to ascertain the dominating behavior of surfactant, a series of comparative experiments were performed to observe their dynamic flooding performances in artificial cores over a permeability range between 5 mD and 50 mD. Besides, a 2D heterogeneous model was used to explore the effect of micro heterogeneity on surfactant flooding. At last, the adaptable limits, including heterogeneous degree and injective time, were further discussed. The results show, the overall oil recovery increases with permeability, while their flooding dynamics also changes with permeability. The results show, in-situ emulsification of surfactant plays the key role in oil recovery compared with IFT reduction, especially with the cores’ permeability decreasing. On the one hand, the strong emulsifying capability of surfactant is advantageous in dispersing the residual oil to reduce oil saturation. On the other hand, the formation of amounts of emulsion droplets is useful to block the pore and further contributes to establish pressure variation and delaying water-cut raising. Meanwhile, strong emulsifying capacity of surfactant is positive to improve the swept efficiency in micro heterogeneous distributions and avoid the formation of micro water channel. Lastly, the adaptable conditions tests indicate the extremely strong heterogeneity and low crude oil saturation are the crucial factor to affect the EOR performances owing to the ease of in-situ emulsification formation. Therefore, this finding of this study can help for better understanding of contribution of in-situ emulsification of surfactant for EOR and its limitations in low-permeability reservoirs, which could be a candidate with great potentials for field application and economic returns. Surfactant Enhanced oil recovery (EOR) Low-permeability reservoirs Adaptable limits Emulsifying capability Yue, Xiang'an verfasserin aut Zou, Jirui verfasserin aut Yan, Rongjie verfasserin aut Enthalten in Colloids and surfaces / A Amsterdam [u.a.] : Elsevier Science, 1993 634 Online-Ressource (DE-627)306659956 (DE-600)1500517-3 (DE-576)098614843 1873-4359 nnns volume:634 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2411 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.18 Kolloidchemie Grenzflächenchemie 33.68 Oberflächen Dünne Schichten Grenzflächen Physik 52.78 Oberflächentechnik Wärmebehandlung 58.20 Chemische Technologien: Allgemeines AR 634 |
| spelling |
10.1016/j.colsurfa.2021.127991 doi (DE-627)ELV007154658 (ELSEVIER)S0927-7757(21)01860-4 DE-627 ger DE-627 rda eng 540 DE-600 35.18 bkl 33.68 bkl 52.78 bkl 58.20 bkl Li, Xiaoxiao verfasserin aut Effect of in-situ emulsification of surfactant on the enhanced oil recovery in low-permeability reservoirs 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Surfactant flooding technology has become an important treatment for the enhance oil recovery (EOR) in low-permeability reservoirs, and which behavior of surfactant is more important for EOR, lowering interfacial tension (IFT) or in-situ emulsification, is still debatable. In this work, to ascertain the dominating behavior of surfactant, a series of comparative experiments were performed to observe their dynamic flooding performances in artificial cores over a permeability range between 5 mD and 50 mD. Besides, a 2D heterogeneous model was used to explore the effect of micro heterogeneity on surfactant flooding. At last, the adaptable limits, including heterogeneous degree and injective time, were further discussed. The results show, the overall oil recovery increases with permeability, while their flooding dynamics also changes with permeability. The results show, in-situ emulsification of surfactant plays the key role in oil recovery compared with IFT reduction, especially with the cores’ permeability decreasing. On the one hand, the strong emulsifying capability of surfactant is advantageous in dispersing the residual oil to reduce oil saturation. On the other hand, the formation of amounts of emulsion droplets is useful to block the pore and further contributes to establish pressure variation and delaying water-cut raising. Meanwhile, strong emulsifying capacity of surfactant is positive to improve the swept efficiency in micro heterogeneous distributions and avoid the formation of micro water channel. Lastly, the adaptable conditions tests indicate the extremely strong heterogeneity and low crude oil saturation are the crucial factor to affect the EOR performances owing to the ease of in-situ emulsification formation. Therefore, this finding of this study can help for better understanding of contribution of in-situ emulsification of surfactant for EOR and its limitations in low-permeability reservoirs, which could be a candidate with great potentials for field application and economic returns. Surfactant Enhanced oil recovery (EOR) Low-permeability reservoirs Adaptable limits Emulsifying capability Yue, Xiang'an verfasserin aut Zou, Jirui verfasserin aut Yan, Rongjie verfasserin aut Enthalten in Colloids and surfaces / A Amsterdam [u.a.] : Elsevier Science, 1993 634 Online-Ressource (DE-627)306659956 (DE-600)1500517-3 (DE-576)098614843 1873-4359 nnns volume:634 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2411 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.18 Kolloidchemie Grenzflächenchemie 33.68 Oberflächen Dünne Schichten Grenzflächen Physik 52.78 Oberflächentechnik Wärmebehandlung 58.20 Chemische Technologien: Allgemeines AR 634 |
| allfields_unstemmed |
10.1016/j.colsurfa.2021.127991 doi (DE-627)ELV007154658 (ELSEVIER)S0927-7757(21)01860-4 DE-627 ger DE-627 rda eng 540 DE-600 35.18 bkl 33.68 bkl 52.78 bkl 58.20 bkl Li, Xiaoxiao verfasserin aut Effect of in-situ emulsification of surfactant on the enhanced oil recovery in low-permeability reservoirs 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Surfactant flooding technology has become an important treatment for the enhance oil recovery (EOR) in low-permeability reservoirs, and which behavior of surfactant is more important for EOR, lowering interfacial tension (IFT) or in-situ emulsification, is still debatable. In this work, to ascertain the dominating behavior of surfactant, a series of comparative experiments were performed to observe their dynamic flooding performances in artificial cores over a permeability range between 5 mD and 50 mD. Besides, a 2D heterogeneous model was used to explore the effect of micro heterogeneity on surfactant flooding. At last, the adaptable limits, including heterogeneous degree and injective time, were further discussed. The results show, the overall oil recovery increases with permeability, while their flooding dynamics also changes with permeability. The results show, in-situ emulsification of surfactant plays the key role in oil recovery compared with IFT reduction, especially with the cores’ permeability decreasing. On the one hand, the strong emulsifying capability of surfactant is advantageous in dispersing the residual oil to reduce oil saturation. On the other hand, the formation of amounts of emulsion droplets is useful to block the pore and further contributes to establish pressure variation and delaying water-cut raising. Meanwhile, strong emulsifying capacity of surfactant is positive to improve the swept efficiency in micro heterogeneous distributions and avoid the formation of micro water channel. Lastly, the adaptable conditions tests indicate the extremely strong heterogeneity and low crude oil saturation are the crucial factor to affect the EOR performances owing to the ease of in-situ emulsification formation. Therefore, this finding of this study can help for better understanding of contribution of in-situ emulsification of surfactant for EOR and its limitations in low-permeability reservoirs, which could be a candidate with great potentials for field application and economic returns. Surfactant Enhanced oil recovery (EOR) Low-permeability reservoirs Adaptable limits Emulsifying capability Yue, Xiang'an verfasserin aut Zou, Jirui verfasserin aut Yan, Rongjie verfasserin aut Enthalten in Colloids and surfaces / A Amsterdam [u.a.] : Elsevier Science, 1993 634 Online-Ressource (DE-627)306659956 (DE-600)1500517-3 (DE-576)098614843 1873-4359 nnns volume:634 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2411 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.18 Kolloidchemie Grenzflächenchemie 33.68 Oberflächen Dünne Schichten Grenzflächen Physik 52.78 Oberflächentechnik Wärmebehandlung 58.20 Chemische Technologien: Allgemeines AR 634 |
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10.1016/j.colsurfa.2021.127991 doi (DE-627)ELV007154658 (ELSEVIER)S0927-7757(21)01860-4 DE-627 ger DE-627 rda eng 540 DE-600 35.18 bkl 33.68 bkl 52.78 bkl 58.20 bkl Li, Xiaoxiao verfasserin aut Effect of in-situ emulsification of surfactant on the enhanced oil recovery in low-permeability reservoirs 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Surfactant flooding technology has become an important treatment for the enhance oil recovery (EOR) in low-permeability reservoirs, and which behavior of surfactant is more important for EOR, lowering interfacial tension (IFT) or in-situ emulsification, is still debatable. In this work, to ascertain the dominating behavior of surfactant, a series of comparative experiments were performed to observe their dynamic flooding performances in artificial cores over a permeability range between 5 mD and 50 mD. Besides, a 2D heterogeneous model was used to explore the effect of micro heterogeneity on surfactant flooding. At last, the adaptable limits, including heterogeneous degree and injective time, were further discussed. The results show, the overall oil recovery increases with permeability, while their flooding dynamics also changes with permeability. The results show, in-situ emulsification of surfactant plays the key role in oil recovery compared with IFT reduction, especially with the cores’ permeability decreasing. On the one hand, the strong emulsifying capability of surfactant is advantageous in dispersing the residual oil to reduce oil saturation. On the other hand, the formation of amounts of emulsion droplets is useful to block the pore and further contributes to establish pressure variation and delaying water-cut raising. Meanwhile, strong emulsifying capacity of surfactant is positive to improve the swept efficiency in micro heterogeneous distributions and avoid the formation of micro water channel. Lastly, the adaptable conditions tests indicate the extremely strong heterogeneity and low crude oil saturation are the crucial factor to affect the EOR performances owing to the ease of in-situ emulsification formation. Therefore, this finding of this study can help for better understanding of contribution of in-situ emulsification of surfactant for EOR and its limitations in low-permeability reservoirs, which could be a candidate with great potentials for field application and economic returns. Surfactant Enhanced oil recovery (EOR) Low-permeability reservoirs Adaptable limits Emulsifying capability Yue, Xiang'an verfasserin aut Zou, Jirui verfasserin aut Yan, Rongjie verfasserin aut Enthalten in Colloids and surfaces / A Amsterdam [u.a.] : Elsevier Science, 1993 634 Online-Ressource (DE-627)306659956 (DE-600)1500517-3 (DE-576)098614843 1873-4359 nnns volume:634 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2411 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.18 Kolloidchemie Grenzflächenchemie 33.68 Oberflächen Dünne Schichten Grenzflächen Physik 52.78 Oberflächentechnik Wärmebehandlung 58.20 Chemische Technologien: Allgemeines AR 634 |
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10.1016/j.colsurfa.2021.127991 doi (DE-627)ELV007154658 (ELSEVIER)S0927-7757(21)01860-4 DE-627 ger DE-627 rda eng 540 DE-600 35.18 bkl 33.68 bkl 52.78 bkl 58.20 bkl Li, Xiaoxiao verfasserin aut Effect of in-situ emulsification of surfactant on the enhanced oil recovery in low-permeability reservoirs 2021 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Surfactant flooding technology has become an important treatment for the enhance oil recovery (EOR) in low-permeability reservoirs, and which behavior of surfactant is more important for EOR, lowering interfacial tension (IFT) or in-situ emulsification, is still debatable. In this work, to ascertain the dominating behavior of surfactant, a series of comparative experiments were performed to observe their dynamic flooding performances in artificial cores over a permeability range between 5 mD and 50 mD. Besides, a 2D heterogeneous model was used to explore the effect of micro heterogeneity on surfactant flooding. At last, the adaptable limits, including heterogeneous degree and injective time, were further discussed. The results show, the overall oil recovery increases with permeability, while their flooding dynamics also changes with permeability. The results show, in-situ emulsification of surfactant plays the key role in oil recovery compared with IFT reduction, especially with the cores’ permeability decreasing. On the one hand, the strong emulsifying capability of surfactant is advantageous in dispersing the residual oil to reduce oil saturation. On the other hand, the formation of amounts of emulsion droplets is useful to block the pore and further contributes to establish pressure variation and delaying water-cut raising. Meanwhile, strong emulsifying capacity of surfactant is positive to improve the swept efficiency in micro heterogeneous distributions and avoid the formation of micro water channel. Lastly, the adaptable conditions tests indicate the extremely strong heterogeneity and low crude oil saturation are the crucial factor to affect the EOR performances owing to the ease of in-situ emulsification formation. Therefore, this finding of this study can help for better understanding of contribution of in-situ emulsification of surfactant for EOR and its limitations in low-permeability reservoirs, which could be a candidate with great potentials for field application and economic returns. Surfactant Enhanced oil recovery (EOR) Low-permeability reservoirs Adaptable limits Emulsifying capability Yue, Xiang'an verfasserin aut Zou, Jirui verfasserin aut Yan, Rongjie verfasserin aut Enthalten in Colloids and surfaces / A Amsterdam [u.a.] : Elsevier Science, 1993 634 Online-Ressource (DE-627)306659956 (DE-600)1500517-3 (DE-576)098614843 1873-4359 nnns volume:634 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 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_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2008 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2411 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.18 Kolloidchemie Grenzflächenchemie 33.68 Oberflächen Dünne Schichten Grenzflächen Physik 52.78 Oberflächentechnik Wärmebehandlung 58.20 Chemische Technologien: Allgemeines AR 634 |
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Enthalten in Colloids and surfaces / A 634 volume:634 |
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Surfactant Enhanced oil recovery (EOR) Low-permeability reservoirs Adaptable limits Emulsifying capability |
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Li, Xiaoxiao @@aut@@ Yue, Xiang'an @@aut@@ Zou, Jirui @@aut@@ Yan, Rongjie @@aut@@ |
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2021-01-01T00:00:00Z |
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Li, Xiaoxiao |
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Li, Xiaoxiao ddc 540 bkl 35.18 bkl 33.68 bkl 52.78 bkl 58.20 misc Surfactant misc Enhanced oil recovery (EOR) misc Low-permeability reservoirs misc Adaptable limits misc Emulsifying capability Effect of in-situ emulsification of surfactant on the enhanced oil recovery in low-permeability reservoirs |
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540 DE-600 35.18 bkl 33.68 bkl 52.78 bkl 58.20 bkl Effect of in-situ emulsification of surfactant on the enhanced oil recovery in low-permeability reservoirs Surfactant Enhanced oil recovery (EOR) Low-permeability reservoirs Adaptable limits Emulsifying capability |
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Effect of in-situ emulsification of surfactant on the enhanced oil recovery in low-permeability reservoirs |
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effect of in-situ emulsification of surfactant on the enhanced oil recovery in low-permeability reservoirs |
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Effect of in-situ emulsification of surfactant on the enhanced oil recovery in low-permeability reservoirs |
| abstract |
Surfactant flooding technology has become an important treatment for the enhance oil recovery (EOR) in low-permeability reservoirs, and which behavior of surfactant is more important for EOR, lowering interfacial tension (IFT) or in-situ emulsification, is still debatable. In this work, to ascertain the dominating behavior of surfactant, a series of comparative experiments were performed to observe their dynamic flooding performances in artificial cores over a permeability range between 5 mD and 50 mD. Besides, a 2D heterogeneous model was used to explore the effect of micro heterogeneity on surfactant flooding. At last, the adaptable limits, including heterogeneous degree and injective time, were further discussed. The results show, the overall oil recovery increases with permeability, while their flooding dynamics also changes with permeability. The results show, in-situ emulsification of surfactant plays the key role in oil recovery compared with IFT reduction, especially with the cores’ permeability decreasing. On the one hand, the strong emulsifying capability of surfactant is advantageous in dispersing the residual oil to reduce oil saturation. On the other hand, the formation of amounts of emulsion droplets is useful to block the pore and further contributes to establish pressure variation and delaying water-cut raising. Meanwhile, strong emulsifying capacity of surfactant is positive to improve the swept efficiency in micro heterogeneous distributions and avoid the formation of micro water channel. Lastly, the adaptable conditions tests indicate the extremely strong heterogeneity and low crude oil saturation are the crucial factor to affect the EOR performances owing to the ease of in-situ emulsification formation. Therefore, this finding of this study can help for better understanding of contribution of in-situ emulsification of surfactant for EOR and its limitations in low-permeability reservoirs, which could be a candidate with great potentials for field application and economic returns. |
| abstractGer |
Surfactant flooding technology has become an important treatment for the enhance oil recovery (EOR) in low-permeability reservoirs, and which behavior of surfactant is more important for EOR, lowering interfacial tension (IFT) or in-situ emulsification, is still debatable. In this work, to ascertain the dominating behavior of surfactant, a series of comparative experiments were performed to observe their dynamic flooding performances in artificial cores over a permeability range between 5 mD and 50 mD. Besides, a 2D heterogeneous model was used to explore the effect of micro heterogeneity on surfactant flooding. At last, the adaptable limits, including heterogeneous degree and injective time, were further discussed. The results show, the overall oil recovery increases with permeability, while their flooding dynamics also changes with permeability. The results show, in-situ emulsification of surfactant plays the key role in oil recovery compared with IFT reduction, especially with the cores’ permeability decreasing. On the one hand, the strong emulsifying capability of surfactant is advantageous in dispersing the residual oil to reduce oil saturation. On the other hand, the formation of amounts of emulsion droplets is useful to block the pore and further contributes to establish pressure variation and delaying water-cut raising. Meanwhile, strong emulsifying capacity of surfactant is positive to improve the swept efficiency in micro heterogeneous distributions and avoid the formation of micro water channel. Lastly, the adaptable conditions tests indicate the extremely strong heterogeneity and low crude oil saturation are the crucial factor to affect the EOR performances owing to the ease of in-situ emulsification formation. Therefore, this finding of this study can help for better understanding of contribution of in-situ emulsification of surfactant for EOR and its limitations in low-permeability reservoirs, which could be a candidate with great potentials for field application and economic returns. |
| abstract_unstemmed |
Surfactant flooding technology has become an important treatment for the enhance oil recovery (EOR) in low-permeability reservoirs, and which behavior of surfactant is more important for EOR, lowering interfacial tension (IFT) or in-situ emulsification, is still debatable. In this work, to ascertain the dominating behavior of surfactant, a series of comparative experiments were performed to observe their dynamic flooding performances in artificial cores over a permeability range between 5 mD and 50 mD. Besides, a 2D heterogeneous model was used to explore the effect of micro heterogeneity on surfactant flooding. At last, the adaptable limits, including heterogeneous degree and injective time, were further discussed. The results show, the overall oil recovery increases with permeability, while their flooding dynamics also changes with permeability. The results show, in-situ emulsification of surfactant plays the key role in oil recovery compared with IFT reduction, especially with the cores’ permeability decreasing. On the one hand, the strong emulsifying capability of surfactant is advantageous in dispersing the residual oil to reduce oil saturation. On the other hand, the formation of amounts of emulsion droplets is useful to block the pore and further contributes to establish pressure variation and delaying water-cut raising. Meanwhile, strong emulsifying capacity of surfactant is positive to improve the swept efficiency in micro heterogeneous distributions and avoid the formation of micro water channel. Lastly, the adaptable conditions tests indicate the extremely strong heterogeneity and low crude oil saturation are the crucial factor to affect the EOR performances owing to the ease of in-situ emulsification formation. Therefore, this finding of this study can help for better understanding of contribution of in-situ emulsification of surfactant for EOR and its limitations in low-permeability reservoirs, which could be a candidate with great potentials for field application and economic returns. |
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| score |
7.4014387 |