Characteristics and mechanism of imbibition oil recovery in the ultra-low-permeability volcanic oil reservoir in the Santanghu Basin
Imbibition oil recovery (IOR) is an important method to improve the recovery factor (RF) of low-permeability reservoirs. To explore the characteristics and mechanism of IOR in ultra-low-permeability volcanic oil reservoirs (ULPVORs) in the Santanghu Basin, this study conducted various imbibition exp...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Li, Shuai [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022transfer abstract |
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| Schlagwörter: |
Pore production characteristics |
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| Übergeordnetes Werk: |
Enthalten in: Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface - Ren, Guoqing ELSEVIER, 2018, an international journal devoted to the principles and applications of colloid and interface science, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:652 ; year:2022 ; day:5 ; month:11 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1016/j.colsurfa.2022.129838 |
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ELV058912967 |
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| 245 | 1 | 0 | |a Characteristics and mechanism of imbibition oil recovery in the ultra-low-permeability volcanic oil reservoir in the Santanghu Basin |
| 264 | 1 | |c 2022transfer abstract | |
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| 520 | |a Imbibition oil recovery (IOR) is an important method to improve the recovery factor (RF) of low-permeability reservoirs. To explore the characteristics and mechanism of IOR in ultra-low-permeability volcanic oil reservoirs (ULPVORs) in the Santanghu Basin, this study conducted various imbibition experiments under NMR monitoring using actual cores from the reservoir, including spontaneous imbibition (SI) and forced imbibition (FI) experiments involving different rock sample sizes. Further, we obtained the IOR characteristics of ultra-low-permeability volcanic rocks (ULPVRs). Meanwhile, based on the experimental test results of the pore structure and casting thin section, combined with imbibition theory, the mechanism of the IOR in ULPVRs was obtained. The results demonstrated that the IOR characteristics of the ULPVRs are significantly different from those of conventional tight sandstone and shale. Conventional tight sandstone and shale evenly produce oil on the rock surface during IOR, whereas ULPVRs exhibits extremely few and scattered oil production points on the rock surface during IOR. Unlike conventional tight sandstone and shale plunger cores where the RF of SI is generally approximately 30%, the IOR of ULPVRs is particularly poor, with RFs of SI being 4.59% and 2.70% for plunger and full-diameter cores, respectively, and the RF of FI is only 10.19% for the plunger core. In addition, ULPVRs are extremely heterogeneous, and the pore structure and production characteristics of IOR are extremely complicated. The oil produced by SI in the plunger and full-diameter cores comes from middle pores (0.01 µm 0.1 µm), respectively, while the oil produced by FI in the plunger core comes from large pores. Conventional tight sandstone and shale are not conducive to seepage owing to their small pore sizes, however, their compatibility between the pore and throat sizes makes them favorable for IOR. The extremely poor matching between the pore and throat sizes of the ULPVRs is unfavorable for seepage, and is primarily responsible for its poor IOR effect. For the ULPVORs in the Santanghu Basin, the key to EOR is to improve the seepage capacity of the reservoir throat, such as further large-scale volume fracturing, rather than implementing too many measures for IOR. The results of this study can provide a reference and basis for the efficient development of ULPVORs. | ||
| 520 | |a Imbibition oil recovery (IOR) is an important method to improve the recovery factor (RF) of low-permeability reservoirs. To explore the characteristics and mechanism of IOR in ultra-low-permeability volcanic oil reservoirs (ULPVORs) in the Santanghu Basin, this study conducted various imbibition experiments under NMR monitoring using actual cores from the reservoir, including spontaneous imbibition (SI) and forced imbibition (FI) experiments involving different rock sample sizes. Further, we obtained the IOR characteristics of ultra-low-permeability volcanic rocks (ULPVRs). Meanwhile, based on the experimental test results of the pore structure and casting thin section, combined with imbibition theory, the mechanism of the IOR in ULPVRs was obtained. The results demonstrated that the IOR characteristics of the ULPVRs are significantly different from those of conventional tight sandstone and shale. Conventional tight sandstone and shale evenly produce oil on the rock surface during IOR, whereas ULPVRs exhibits extremely few and scattered oil production points on the rock surface during IOR. Unlike conventional tight sandstone and shale plunger cores where the RF of SI is generally approximately 30%, the IOR of ULPVRs is particularly poor, with RFs of SI being 4.59% and 2.70% for plunger and full-diameter cores, respectively, and the RF of FI is only 10.19% for the plunger core. In addition, ULPVRs are extremely heterogeneous, and the pore structure and production characteristics of IOR are extremely complicated. The oil produced by SI in the plunger and full-diameter cores comes from middle pores (0.01 µm 0.1 µm), respectively, while the oil produced by FI in the plunger core comes from large pores. Conventional tight sandstone and shale are not conducive to seepage owing to their small pore sizes, however, their compatibility between the pore and throat sizes makes them favorable for IOR. The extremely poor matching between the pore and throat sizes of the ULPVRs is unfavorable for seepage, and is primarily responsible for its poor IOR effect. For the ULPVORs in the Santanghu Basin, the key to EOR is to improve the seepage capacity of the reservoir throat, such as further large-scale volume fracturing, rather than implementing too many measures for IOR. The results of this study can provide a reference and basis for the efficient development of ULPVORs. | ||
| 650 | 7 | |a Pore production characteristics |2 Elsevier | |
| 650 | 7 | |a Imbibition oil recovery |2 Elsevier | |
| 650 | 7 | |a Oil recovery mechanism |2 Elsevier | |
| 650 | 7 | |a Ultra-low-permeability volcanic oil reservoir |2 Elsevier | |
| 650 | 7 | |a Oil recovery characteristic |2 Elsevier | |
| 700 | 1 | |a Yang, Shenglai |4 oth | |
| 700 | 1 | |a Gao, Xinyuan |4 oth | |
| 700 | 1 | |a Wang, Mengyu |4 oth | |
| 700 | 1 | |a Shen, Bin |4 oth | |
| 700 | 1 | |a Yu, Jiayi |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier Science |a Ren, Guoqing ELSEVIER |t Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface |d 2018 |d an international journal devoted to the principles and applications of colloid and interface science |g Amsterdam [u.a.] |w (DE-627)ELV003763498 |
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10.1016/j.colsurfa.2022.129838 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001901.pica (DE-627)ELV058912967 (ELSEVIER)S0927-7757(22)01593-X DE-627 ger DE-627 rakwb eng 540 VZ 35.10 bkl Li, Shuai verfasserin aut Characteristics and mechanism of imbibition oil recovery in the ultra-low-permeability volcanic oil reservoir in the Santanghu Basin 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Imbibition oil recovery (IOR) is an important method to improve the recovery factor (RF) of low-permeability reservoirs. To explore the characteristics and mechanism of IOR in ultra-low-permeability volcanic oil reservoirs (ULPVORs) in the Santanghu Basin, this study conducted various imbibition experiments under NMR monitoring using actual cores from the reservoir, including spontaneous imbibition (SI) and forced imbibition (FI) experiments involving different rock sample sizes. Further, we obtained the IOR characteristics of ultra-low-permeability volcanic rocks (ULPVRs). Meanwhile, based on the experimental test results of the pore structure and casting thin section, combined with imbibition theory, the mechanism of the IOR in ULPVRs was obtained. The results demonstrated that the IOR characteristics of the ULPVRs are significantly different from those of conventional tight sandstone and shale. Conventional tight sandstone and shale evenly produce oil on the rock surface during IOR, whereas ULPVRs exhibits extremely few and scattered oil production points on the rock surface during IOR. Unlike conventional tight sandstone and shale plunger cores where the RF of SI is generally approximately 30%, the IOR of ULPVRs is particularly poor, with RFs of SI being 4.59% and 2.70% for plunger and full-diameter cores, respectively, and the RF of FI is only 10.19% for the plunger core. In addition, ULPVRs are extremely heterogeneous, and the pore structure and production characteristics of IOR are extremely complicated. The oil produced by SI in the plunger and full-diameter cores comes from middle pores (0.01 µm 0.1 µm), respectively, while the oil produced by FI in the plunger core comes from large pores. Conventional tight sandstone and shale are not conducive to seepage owing to their small pore sizes, however, their compatibility between the pore and throat sizes makes them favorable for IOR. The extremely poor matching between the pore and throat sizes of the ULPVRs is unfavorable for seepage, and is primarily responsible for its poor IOR effect. For the ULPVORs in the Santanghu Basin, the key to EOR is to improve the seepage capacity of the reservoir throat, such as further large-scale volume fracturing, rather than implementing too many measures for IOR. The results of this study can provide a reference and basis for the efficient development of ULPVORs. Imbibition oil recovery (IOR) is an important method to improve the recovery factor (RF) of low-permeability reservoirs. To explore the characteristics and mechanism of IOR in ultra-low-permeability volcanic oil reservoirs (ULPVORs) in the Santanghu Basin, this study conducted various imbibition experiments under NMR monitoring using actual cores from the reservoir, including spontaneous imbibition (SI) and forced imbibition (FI) experiments involving different rock sample sizes. Further, we obtained the IOR characteristics of ultra-low-permeability volcanic rocks (ULPVRs). Meanwhile, based on the experimental test results of the pore structure and casting thin section, combined with imbibition theory, the mechanism of the IOR in ULPVRs was obtained. The results demonstrated that the IOR characteristics of the ULPVRs are significantly different from those of conventional tight sandstone and shale. Conventional tight sandstone and shale evenly produce oil on the rock surface during IOR, whereas ULPVRs exhibits extremely few and scattered oil production points on the rock surface during IOR. Unlike conventional tight sandstone and shale plunger cores where the RF of SI is generally approximately 30%, the IOR of ULPVRs is particularly poor, with RFs of SI being 4.59% and 2.70% for plunger and full-diameter cores, respectively, and the RF of FI is only 10.19% for the plunger core. In addition, ULPVRs are extremely heterogeneous, and the pore structure and production characteristics of IOR are extremely complicated. The oil produced by SI in the plunger and full-diameter cores comes from middle pores (0.01 µm 0.1 µm), respectively, while the oil produced by FI in the plunger core comes from large pores. Conventional tight sandstone and shale are not conducive to seepage owing to their small pore sizes, however, their compatibility between the pore and throat sizes makes them favorable for IOR. The extremely poor matching between the pore and throat sizes of the ULPVRs is unfavorable for seepage, and is primarily responsible for its poor IOR effect. For the ULPVORs in the Santanghu Basin, the key to EOR is to improve the seepage capacity of the reservoir throat, such as further large-scale volume fracturing, rather than implementing too many measures for IOR. The results of this study can provide a reference and basis for the efficient development of ULPVORs. Pore production characteristics Elsevier Imbibition oil recovery Elsevier Oil recovery mechanism Elsevier Ultra-low-permeability volcanic oil reservoir Elsevier Oil recovery characteristic Elsevier Yang, Shenglai oth Gao, Xinyuan oth Wang, Mengyu oth Shen, Bin oth Yu, Jiayi oth Enthalten in Elsevier Science Ren, Guoqing ELSEVIER Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface 2018 an international journal devoted to the principles and applications of colloid and interface science Amsterdam [u.a.] (DE-627)ELV003763498 volume:652 year:2022 day:5 month:11 pages:0 https://doi.org/10.1016/j.colsurfa.2022.129838 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.10 Physikalische Chemie: Allgemeines VZ AR 652 2022 5 1105 0 |
| spelling |
10.1016/j.colsurfa.2022.129838 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001901.pica (DE-627)ELV058912967 (ELSEVIER)S0927-7757(22)01593-X DE-627 ger DE-627 rakwb eng 540 VZ 35.10 bkl Li, Shuai verfasserin aut Characteristics and mechanism of imbibition oil recovery in the ultra-low-permeability volcanic oil reservoir in the Santanghu Basin 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Imbibition oil recovery (IOR) is an important method to improve the recovery factor (RF) of low-permeability reservoirs. To explore the characteristics and mechanism of IOR in ultra-low-permeability volcanic oil reservoirs (ULPVORs) in the Santanghu Basin, this study conducted various imbibition experiments under NMR monitoring using actual cores from the reservoir, including spontaneous imbibition (SI) and forced imbibition (FI) experiments involving different rock sample sizes. Further, we obtained the IOR characteristics of ultra-low-permeability volcanic rocks (ULPVRs). Meanwhile, based on the experimental test results of the pore structure and casting thin section, combined with imbibition theory, the mechanism of the IOR in ULPVRs was obtained. The results demonstrated that the IOR characteristics of the ULPVRs are significantly different from those of conventional tight sandstone and shale. Conventional tight sandstone and shale evenly produce oil on the rock surface during IOR, whereas ULPVRs exhibits extremely few and scattered oil production points on the rock surface during IOR. Unlike conventional tight sandstone and shale plunger cores where the RF of SI is generally approximately 30%, the IOR of ULPVRs is particularly poor, with RFs of SI being 4.59% and 2.70% for plunger and full-diameter cores, respectively, and the RF of FI is only 10.19% for the plunger core. In addition, ULPVRs are extremely heterogeneous, and the pore structure and production characteristics of IOR are extremely complicated. The oil produced by SI in the plunger and full-diameter cores comes from middle pores (0.01 µm 0.1 µm), respectively, while the oil produced by FI in the plunger core comes from large pores. Conventional tight sandstone and shale are not conducive to seepage owing to their small pore sizes, however, their compatibility between the pore and throat sizes makes them favorable for IOR. The extremely poor matching between the pore and throat sizes of the ULPVRs is unfavorable for seepage, and is primarily responsible for its poor IOR effect. For the ULPVORs in the Santanghu Basin, the key to EOR is to improve the seepage capacity of the reservoir throat, such as further large-scale volume fracturing, rather than implementing too many measures for IOR. The results of this study can provide a reference and basis for the efficient development of ULPVORs. Imbibition oil recovery (IOR) is an important method to improve the recovery factor (RF) of low-permeability reservoirs. To explore the characteristics and mechanism of IOR in ultra-low-permeability volcanic oil reservoirs (ULPVORs) in the Santanghu Basin, this study conducted various imbibition experiments under NMR monitoring using actual cores from the reservoir, including spontaneous imbibition (SI) and forced imbibition (FI) experiments involving different rock sample sizes. Further, we obtained the IOR characteristics of ultra-low-permeability volcanic rocks (ULPVRs). Meanwhile, based on the experimental test results of the pore structure and casting thin section, combined with imbibition theory, the mechanism of the IOR in ULPVRs was obtained. The results demonstrated that the IOR characteristics of the ULPVRs are significantly different from those of conventional tight sandstone and shale. Conventional tight sandstone and shale evenly produce oil on the rock surface during IOR, whereas ULPVRs exhibits extremely few and scattered oil production points on the rock surface during IOR. Unlike conventional tight sandstone and shale plunger cores where the RF of SI is generally approximately 30%, the IOR of ULPVRs is particularly poor, with RFs of SI being 4.59% and 2.70% for plunger and full-diameter cores, respectively, and the RF of FI is only 10.19% for the plunger core. In addition, ULPVRs are extremely heterogeneous, and the pore structure and production characteristics of IOR are extremely complicated. The oil produced by SI in the plunger and full-diameter cores comes from middle pores (0.01 µm 0.1 µm), respectively, while the oil produced by FI in the plunger core comes from large pores. Conventional tight sandstone and shale are not conducive to seepage owing to their small pore sizes, however, their compatibility between the pore and throat sizes makes them favorable for IOR. The extremely poor matching between the pore and throat sizes of the ULPVRs is unfavorable for seepage, and is primarily responsible for its poor IOR effect. For the ULPVORs in the Santanghu Basin, the key to EOR is to improve the seepage capacity of the reservoir throat, such as further large-scale volume fracturing, rather than implementing too many measures for IOR. The results of this study can provide a reference and basis for the efficient development of ULPVORs. Pore production characteristics Elsevier Imbibition oil recovery Elsevier Oil recovery mechanism Elsevier Ultra-low-permeability volcanic oil reservoir Elsevier Oil recovery characteristic Elsevier Yang, Shenglai oth Gao, Xinyuan oth Wang, Mengyu oth Shen, Bin oth Yu, Jiayi oth Enthalten in Elsevier Science Ren, Guoqing ELSEVIER Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface 2018 an international journal devoted to the principles and applications of colloid and interface science Amsterdam [u.a.] (DE-627)ELV003763498 volume:652 year:2022 day:5 month:11 pages:0 https://doi.org/10.1016/j.colsurfa.2022.129838 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.10 Physikalische Chemie: Allgemeines VZ AR 652 2022 5 1105 0 |
| allfields_unstemmed |
10.1016/j.colsurfa.2022.129838 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001901.pica (DE-627)ELV058912967 (ELSEVIER)S0927-7757(22)01593-X DE-627 ger DE-627 rakwb eng 540 VZ 35.10 bkl Li, Shuai verfasserin aut Characteristics and mechanism of imbibition oil recovery in the ultra-low-permeability volcanic oil reservoir in the Santanghu Basin 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Imbibition oil recovery (IOR) is an important method to improve the recovery factor (RF) of low-permeability reservoirs. To explore the characteristics and mechanism of IOR in ultra-low-permeability volcanic oil reservoirs (ULPVORs) in the Santanghu Basin, this study conducted various imbibition experiments under NMR monitoring using actual cores from the reservoir, including spontaneous imbibition (SI) and forced imbibition (FI) experiments involving different rock sample sizes. Further, we obtained the IOR characteristics of ultra-low-permeability volcanic rocks (ULPVRs). Meanwhile, based on the experimental test results of the pore structure and casting thin section, combined with imbibition theory, the mechanism of the IOR in ULPVRs was obtained. The results demonstrated that the IOR characteristics of the ULPVRs are significantly different from those of conventional tight sandstone and shale. Conventional tight sandstone and shale evenly produce oil on the rock surface during IOR, whereas ULPVRs exhibits extremely few and scattered oil production points on the rock surface during IOR. Unlike conventional tight sandstone and shale plunger cores where the RF of SI is generally approximately 30%, the IOR of ULPVRs is particularly poor, with RFs of SI being 4.59% and 2.70% for plunger and full-diameter cores, respectively, and the RF of FI is only 10.19% for the plunger core. In addition, ULPVRs are extremely heterogeneous, and the pore structure and production characteristics of IOR are extremely complicated. The oil produced by SI in the plunger and full-diameter cores comes from middle pores (0.01 µm 0.1 µm), respectively, while the oil produced by FI in the plunger core comes from large pores. Conventional tight sandstone and shale are not conducive to seepage owing to their small pore sizes, however, their compatibility between the pore and throat sizes makes them favorable for IOR. The extremely poor matching between the pore and throat sizes of the ULPVRs is unfavorable for seepage, and is primarily responsible for its poor IOR effect. For the ULPVORs in the Santanghu Basin, the key to EOR is to improve the seepage capacity of the reservoir throat, such as further large-scale volume fracturing, rather than implementing too many measures for IOR. The results of this study can provide a reference and basis for the efficient development of ULPVORs. Imbibition oil recovery (IOR) is an important method to improve the recovery factor (RF) of low-permeability reservoirs. To explore the characteristics and mechanism of IOR in ultra-low-permeability volcanic oil reservoirs (ULPVORs) in the Santanghu Basin, this study conducted various imbibition experiments under NMR monitoring using actual cores from the reservoir, including spontaneous imbibition (SI) and forced imbibition (FI) experiments involving different rock sample sizes. Further, we obtained the IOR characteristics of ultra-low-permeability volcanic rocks (ULPVRs). Meanwhile, based on the experimental test results of the pore structure and casting thin section, combined with imbibition theory, the mechanism of the IOR in ULPVRs was obtained. The results demonstrated that the IOR characteristics of the ULPVRs are significantly different from those of conventional tight sandstone and shale. Conventional tight sandstone and shale evenly produce oil on the rock surface during IOR, whereas ULPVRs exhibits extremely few and scattered oil production points on the rock surface during IOR. Unlike conventional tight sandstone and shale plunger cores where the RF of SI is generally approximately 30%, the IOR of ULPVRs is particularly poor, with RFs of SI being 4.59% and 2.70% for plunger and full-diameter cores, respectively, and the RF of FI is only 10.19% for the plunger core. In addition, ULPVRs are extremely heterogeneous, and the pore structure and production characteristics of IOR are extremely complicated. The oil produced by SI in the plunger and full-diameter cores comes from middle pores (0.01 µm 0.1 µm), respectively, while the oil produced by FI in the plunger core comes from large pores. Conventional tight sandstone and shale are not conducive to seepage owing to their small pore sizes, however, their compatibility between the pore and throat sizes makes them favorable for IOR. The extremely poor matching between the pore and throat sizes of the ULPVRs is unfavorable for seepage, and is primarily responsible for its poor IOR effect. For the ULPVORs in the Santanghu Basin, the key to EOR is to improve the seepage capacity of the reservoir throat, such as further large-scale volume fracturing, rather than implementing too many measures for IOR. The results of this study can provide a reference and basis for the efficient development of ULPVORs. Pore production characteristics Elsevier Imbibition oil recovery Elsevier Oil recovery mechanism Elsevier Ultra-low-permeability volcanic oil reservoir Elsevier Oil recovery characteristic Elsevier Yang, Shenglai oth Gao, Xinyuan oth Wang, Mengyu oth Shen, Bin oth Yu, Jiayi oth Enthalten in Elsevier Science Ren, Guoqing ELSEVIER Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface 2018 an international journal devoted to the principles and applications of colloid and interface science Amsterdam [u.a.] (DE-627)ELV003763498 volume:652 year:2022 day:5 month:11 pages:0 https://doi.org/10.1016/j.colsurfa.2022.129838 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.10 Physikalische Chemie: Allgemeines VZ AR 652 2022 5 1105 0 |
| allfieldsGer |
10.1016/j.colsurfa.2022.129838 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001901.pica (DE-627)ELV058912967 (ELSEVIER)S0927-7757(22)01593-X DE-627 ger DE-627 rakwb eng 540 VZ 35.10 bkl Li, Shuai verfasserin aut Characteristics and mechanism of imbibition oil recovery in the ultra-low-permeability volcanic oil reservoir in the Santanghu Basin 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Imbibition oil recovery (IOR) is an important method to improve the recovery factor (RF) of low-permeability reservoirs. To explore the characteristics and mechanism of IOR in ultra-low-permeability volcanic oil reservoirs (ULPVORs) in the Santanghu Basin, this study conducted various imbibition experiments under NMR monitoring using actual cores from the reservoir, including spontaneous imbibition (SI) and forced imbibition (FI) experiments involving different rock sample sizes. Further, we obtained the IOR characteristics of ultra-low-permeability volcanic rocks (ULPVRs). Meanwhile, based on the experimental test results of the pore structure and casting thin section, combined with imbibition theory, the mechanism of the IOR in ULPVRs was obtained. The results demonstrated that the IOR characteristics of the ULPVRs are significantly different from those of conventional tight sandstone and shale. Conventional tight sandstone and shale evenly produce oil on the rock surface during IOR, whereas ULPVRs exhibits extremely few and scattered oil production points on the rock surface during IOR. Unlike conventional tight sandstone and shale plunger cores where the RF of SI is generally approximately 30%, the IOR of ULPVRs is particularly poor, with RFs of SI being 4.59% and 2.70% for plunger and full-diameter cores, respectively, and the RF of FI is only 10.19% for the plunger core. In addition, ULPVRs are extremely heterogeneous, and the pore structure and production characteristics of IOR are extremely complicated. The oil produced by SI in the plunger and full-diameter cores comes from middle pores (0.01 µm 0.1 µm), respectively, while the oil produced by FI in the plunger core comes from large pores. Conventional tight sandstone and shale are not conducive to seepage owing to their small pore sizes, however, their compatibility between the pore and throat sizes makes them favorable for IOR. The extremely poor matching between the pore and throat sizes of the ULPVRs is unfavorable for seepage, and is primarily responsible for its poor IOR effect. For the ULPVORs in the Santanghu Basin, the key to EOR is to improve the seepage capacity of the reservoir throat, such as further large-scale volume fracturing, rather than implementing too many measures for IOR. The results of this study can provide a reference and basis for the efficient development of ULPVORs. Imbibition oil recovery (IOR) is an important method to improve the recovery factor (RF) of low-permeability reservoirs. To explore the characteristics and mechanism of IOR in ultra-low-permeability volcanic oil reservoirs (ULPVORs) in the Santanghu Basin, this study conducted various imbibition experiments under NMR monitoring using actual cores from the reservoir, including spontaneous imbibition (SI) and forced imbibition (FI) experiments involving different rock sample sizes. Further, we obtained the IOR characteristics of ultra-low-permeability volcanic rocks (ULPVRs). Meanwhile, based on the experimental test results of the pore structure and casting thin section, combined with imbibition theory, the mechanism of the IOR in ULPVRs was obtained. The results demonstrated that the IOR characteristics of the ULPVRs are significantly different from those of conventional tight sandstone and shale. Conventional tight sandstone and shale evenly produce oil on the rock surface during IOR, whereas ULPVRs exhibits extremely few and scattered oil production points on the rock surface during IOR. Unlike conventional tight sandstone and shale plunger cores where the RF of SI is generally approximately 30%, the IOR of ULPVRs is particularly poor, with RFs of SI being 4.59% and 2.70% for plunger and full-diameter cores, respectively, and the RF of FI is only 10.19% for the plunger core. In addition, ULPVRs are extremely heterogeneous, and the pore structure and production characteristics of IOR are extremely complicated. The oil produced by SI in the plunger and full-diameter cores comes from middle pores (0.01 µm 0.1 µm), respectively, while the oil produced by FI in the plunger core comes from large pores. Conventional tight sandstone and shale are not conducive to seepage owing to their small pore sizes, however, their compatibility between the pore and throat sizes makes them favorable for IOR. The extremely poor matching between the pore and throat sizes of the ULPVRs is unfavorable for seepage, and is primarily responsible for its poor IOR effect. For the ULPVORs in the Santanghu Basin, the key to EOR is to improve the seepage capacity of the reservoir throat, such as further large-scale volume fracturing, rather than implementing too many measures for IOR. The results of this study can provide a reference and basis for the efficient development of ULPVORs. Pore production characteristics Elsevier Imbibition oil recovery Elsevier Oil recovery mechanism Elsevier Ultra-low-permeability volcanic oil reservoir Elsevier Oil recovery characteristic Elsevier Yang, Shenglai oth Gao, Xinyuan oth Wang, Mengyu oth Shen, Bin oth Yu, Jiayi oth Enthalten in Elsevier Science Ren, Guoqing ELSEVIER Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface 2018 an international journal devoted to the principles and applications of colloid and interface science Amsterdam [u.a.] (DE-627)ELV003763498 volume:652 year:2022 day:5 month:11 pages:0 https://doi.org/10.1016/j.colsurfa.2022.129838 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.10 Physikalische Chemie: Allgemeines VZ AR 652 2022 5 1105 0 |
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10.1016/j.colsurfa.2022.129838 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001901.pica (DE-627)ELV058912967 (ELSEVIER)S0927-7757(22)01593-X DE-627 ger DE-627 rakwb eng 540 VZ 35.10 bkl Li, Shuai verfasserin aut Characteristics and mechanism of imbibition oil recovery in the ultra-low-permeability volcanic oil reservoir in the Santanghu Basin 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Imbibition oil recovery (IOR) is an important method to improve the recovery factor (RF) of low-permeability reservoirs. To explore the characteristics and mechanism of IOR in ultra-low-permeability volcanic oil reservoirs (ULPVORs) in the Santanghu Basin, this study conducted various imbibition experiments under NMR monitoring using actual cores from the reservoir, including spontaneous imbibition (SI) and forced imbibition (FI) experiments involving different rock sample sizes. Further, we obtained the IOR characteristics of ultra-low-permeability volcanic rocks (ULPVRs). Meanwhile, based on the experimental test results of the pore structure and casting thin section, combined with imbibition theory, the mechanism of the IOR in ULPVRs was obtained. The results demonstrated that the IOR characteristics of the ULPVRs are significantly different from those of conventional tight sandstone and shale. Conventional tight sandstone and shale evenly produce oil on the rock surface during IOR, whereas ULPVRs exhibits extremely few and scattered oil production points on the rock surface during IOR. Unlike conventional tight sandstone and shale plunger cores where the RF of SI is generally approximately 30%, the IOR of ULPVRs is particularly poor, with RFs of SI being 4.59% and 2.70% for plunger and full-diameter cores, respectively, and the RF of FI is only 10.19% for the plunger core. In addition, ULPVRs are extremely heterogeneous, and the pore structure and production characteristics of IOR are extremely complicated. The oil produced by SI in the plunger and full-diameter cores comes from middle pores (0.01 µm 0.1 µm), respectively, while the oil produced by FI in the plunger core comes from large pores. Conventional tight sandstone and shale are not conducive to seepage owing to their small pore sizes, however, their compatibility between the pore and throat sizes makes them favorable for IOR. The extremely poor matching between the pore and throat sizes of the ULPVRs is unfavorable for seepage, and is primarily responsible for its poor IOR effect. For the ULPVORs in the Santanghu Basin, the key to EOR is to improve the seepage capacity of the reservoir throat, such as further large-scale volume fracturing, rather than implementing too many measures for IOR. The results of this study can provide a reference and basis for the efficient development of ULPVORs. Imbibition oil recovery (IOR) is an important method to improve the recovery factor (RF) of low-permeability reservoirs. To explore the characteristics and mechanism of IOR in ultra-low-permeability volcanic oil reservoirs (ULPVORs) in the Santanghu Basin, this study conducted various imbibition experiments under NMR monitoring using actual cores from the reservoir, including spontaneous imbibition (SI) and forced imbibition (FI) experiments involving different rock sample sizes. Further, we obtained the IOR characteristics of ultra-low-permeability volcanic rocks (ULPVRs). Meanwhile, based on the experimental test results of the pore structure and casting thin section, combined with imbibition theory, the mechanism of the IOR in ULPVRs was obtained. The results demonstrated that the IOR characteristics of the ULPVRs are significantly different from those of conventional tight sandstone and shale. Conventional tight sandstone and shale evenly produce oil on the rock surface during IOR, whereas ULPVRs exhibits extremely few and scattered oil production points on the rock surface during IOR. Unlike conventional tight sandstone and shale plunger cores where the RF of SI is generally approximately 30%, the IOR of ULPVRs is particularly poor, with RFs of SI being 4.59% and 2.70% for plunger and full-diameter cores, respectively, and the RF of FI is only 10.19% for the plunger core. In addition, ULPVRs are extremely heterogeneous, and the pore structure and production characteristics of IOR are extremely complicated. The oil produced by SI in the plunger and full-diameter cores comes from middle pores (0.01 µm 0.1 µm), respectively, while the oil produced by FI in the plunger core comes from large pores. Conventional tight sandstone and shale are not conducive to seepage owing to their small pore sizes, however, their compatibility between the pore and throat sizes makes them favorable for IOR. The extremely poor matching between the pore and throat sizes of the ULPVRs is unfavorable for seepage, and is primarily responsible for its poor IOR effect. For the ULPVORs in the Santanghu Basin, the key to EOR is to improve the seepage capacity of the reservoir throat, such as further large-scale volume fracturing, rather than implementing too many measures for IOR. The results of this study can provide a reference and basis for the efficient development of ULPVORs. Pore production characteristics Elsevier Imbibition oil recovery Elsevier Oil recovery mechanism Elsevier Ultra-low-permeability volcanic oil reservoir Elsevier Oil recovery characteristic Elsevier Yang, Shenglai oth Gao, Xinyuan oth Wang, Mengyu oth Shen, Bin oth Yu, Jiayi oth Enthalten in Elsevier Science Ren, Guoqing ELSEVIER Reaction mechanism investigation of furfural conversion to 2-methylfuran on Cu(1 1 1) surface 2018 an international journal devoted to the principles and applications of colloid and interface science Amsterdam [u.a.] (DE-627)ELV003763498 volume:652 year:2022 day:5 month:11 pages:0 https://doi.org/10.1016/j.colsurfa.2022.129838 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 35.10 Physikalische Chemie: Allgemeines VZ AR 652 2022 5 1105 0 |
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characteristics and mechanism of imbibition oil recovery in the ultra-low-permeability volcanic oil reservoir in the santanghu basin |
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Characteristics and mechanism of imbibition oil recovery in the ultra-low-permeability volcanic oil reservoir in the Santanghu Basin |
| abstract |
Imbibition oil recovery (IOR) is an important method to improve the recovery factor (RF) of low-permeability reservoirs. To explore the characteristics and mechanism of IOR in ultra-low-permeability volcanic oil reservoirs (ULPVORs) in the Santanghu Basin, this study conducted various imbibition experiments under NMR monitoring using actual cores from the reservoir, including spontaneous imbibition (SI) and forced imbibition (FI) experiments involving different rock sample sizes. Further, we obtained the IOR characteristics of ultra-low-permeability volcanic rocks (ULPVRs). Meanwhile, based on the experimental test results of the pore structure and casting thin section, combined with imbibition theory, the mechanism of the IOR in ULPVRs was obtained. The results demonstrated that the IOR characteristics of the ULPVRs are significantly different from those of conventional tight sandstone and shale. Conventional tight sandstone and shale evenly produce oil on the rock surface during IOR, whereas ULPVRs exhibits extremely few and scattered oil production points on the rock surface during IOR. Unlike conventional tight sandstone and shale plunger cores where the RF of SI is generally approximately 30%, the IOR of ULPVRs is particularly poor, with RFs of SI being 4.59% and 2.70% for plunger and full-diameter cores, respectively, and the RF of FI is only 10.19% for the plunger core. In addition, ULPVRs are extremely heterogeneous, and the pore structure and production characteristics of IOR are extremely complicated. The oil produced by SI in the plunger and full-diameter cores comes from middle pores (0.01 µm 0.1 µm), respectively, while the oil produced by FI in the plunger core comes from large pores. Conventional tight sandstone and shale are not conducive to seepage owing to their small pore sizes, however, their compatibility between the pore and throat sizes makes them favorable for IOR. The extremely poor matching between the pore and throat sizes of the ULPVRs is unfavorable for seepage, and is primarily responsible for its poor IOR effect. For the ULPVORs in the Santanghu Basin, the key to EOR is to improve the seepage capacity of the reservoir throat, such as further large-scale volume fracturing, rather than implementing too many measures for IOR. The results of this study can provide a reference and basis for the efficient development of ULPVORs. |
| abstractGer |
Imbibition oil recovery (IOR) is an important method to improve the recovery factor (RF) of low-permeability reservoirs. To explore the characteristics and mechanism of IOR in ultra-low-permeability volcanic oil reservoirs (ULPVORs) in the Santanghu Basin, this study conducted various imbibition experiments under NMR monitoring using actual cores from the reservoir, including spontaneous imbibition (SI) and forced imbibition (FI) experiments involving different rock sample sizes. Further, we obtained the IOR characteristics of ultra-low-permeability volcanic rocks (ULPVRs). Meanwhile, based on the experimental test results of the pore structure and casting thin section, combined with imbibition theory, the mechanism of the IOR in ULPVRs was obtained. The results demonstrated that the IOR characteristics of the ULPVRs are significantly different from those of conventional tight sandstone and shale. Conventional tight sandstone and shale evenly produce oil on the rock surface during IOR, whereas ULPVRs exhibits extremely few and scattered oil production points on the rock surface during IOR. Unlike conventional tight sandstone and shale plunger cores where the RF of SI is generally approximately 30%, the IOR of ULPVRs is particularly poor, with RFs of SI being 4.59% and 2.70% for plunger and full-diameter cores, respectively, and the RF of FI is only 10.19% for the plunger core. In addition, ULPVRs are extremely heterogeneous, and the pore structure and production characteristics of IOR are extremely complicated. The oil produced by SI in the plunger and full-diameter cores comes from middle pores (0.01 µm 0.1 µm), respectively, while the oil produced by FI in the plunger core comes from large pores. Conventional tight sandstone and shale are not conducive to seepage owing to their small pore sizes, however, their compatibility between the pore and throat sizes makes them favorable for IOR. The extremely poor matching between the pore and throat sizes of the ULPVRs is unfavorable for seepage, and is primarily responsible for its poor IOR effect. For the ULPVORs in the Santanghu Basin, the key to EOR is to improve the seepage capacity of the reservoir throat, such as further large-scale volume fracturing, rather than implementing too many measures for IOR. The results of this study can provide a reference and basis for the efficient development of ULPVORs. |
| abstract_unstemmed |
Imbibition oil recovery (IOR) is an important method to improve the recovery factor (RF) of low-permeability reservoirs. To explore the characteristics and mechanism of IOR in ultra-low-permeability volcanic oil reservoirs (ULPVORs) in the Santanghu Basin, this study conducted various imbibition experiments under NMR monitoring using actual cores from the reservoir, including spontaneous imbibition (SI) and forced imbibition (FI) experiments involving different rock sample sizes. Further, we obtained the IOR characteristics of ultra-low-permeability volcanic rocks (ULPVRs). Meanwhile, based on the experimental test results of the pore structure and casting thin section, combined with imbibition theory, the mechanism of the IOR in ULPVRs was obtained. The results demonstrated that the IOR characteristics of the ULPVRs are significantly different from those of conventional tight sandstone and shale. Conventional tight sandstone and shale evenly produce oil on the rock surface during IOR, whereas ULPVRs exhibits extremely few and scattered oil production points on the rock surface during IOR. Unlike conventional tight sandstone and shale plunger cores where the RF of SI is generally approximately 30%, the IOR of ULPVRs is particularly poor, with RFs of SI being 4.59% and 2.70% for plunger and full-diameter cores, respectively, and the RF of FI is only 10.19% for the plunger core. In addition, ULPVRs are extremely heterogeneous, and the pore structure and production characteristics of IOR are extremely complicated. The oil produced by SI in the plunger and full-diameter cores comes from middle pores (0.01 µm 0.1 µm), respectively, while the oil produced by FI in the plunger core comes from large pores. Conventional tight sandstone and shale are not conducive to seepage owing to their small pore sizes, however, their compatibility between the pore and throat sizes makes them favorable for IOR. The extremely poor matching between the pore and throat sizes of the ULPVRs is unfavorable for seepage, and is primarily responsible for its poor IOR effect. For the ULPVORs in the Santanghu Basin, the key to EOR is to improve the seepage capacity of the reservoir throat, such as further large-scale volume fracturing, rather than implementing too many measures for IOR. The results of this study can provide a reference and basis for the efficient development of ULPVORs. |
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Characteristics and mechanism of imbibition oil recovery in the ultra-low-permeability volcanic oil reservoir in the Santanghu Basin |
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https://doi.org/10.1016/j.colsurfa.2022.129838 |
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Yang, Shenglai Gao, Xinyuan Wang, Mengyu Shen, Bin Yu, Jiayi |
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10.1016/j.colsurfa.2022.129838 |
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