Investigation of multi-field coupling mechanisms during well cement through gas hydrate layer in horizontal well
Exploitation of natural gas hydrates from horizontal wells can significantly improve the production rate and final recovery. However, the long interaction surfaces of horizontal wells may easily disturb the hydrate reservoir. Cement hydration in wellbore is an exothermic reaction, which may lead to...
Ausführliche Beschreibung
Autor*in: |
Wang, Xuerui [verfasserIn] Liu, Dingyi [verfasserIn] Sun, Baojiang [verfasserIn] Liu, Shujie [verfasserIn] Wang, Zhiyuan [verfasserIn] Gao, Yonghai [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2023 |
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Schlagwörter: |
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Übergeordnetes Werk: |
Enthalten in: Construction and building materials - Amsterdam [u.a.] : Elsevier Science, 1987, 407 |
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Übergeordnetes Werk: |
volume:407 |
DOI / URN: |
10.1016/j.conbuildmat.2023.133505 |
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Katalog-ID: |
ELV065103289 |
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520 | |a Exploitation of natural gas hydrates from horizontal wells can significantly improve the production rate and final recovery. However, the long interaction surfaces of horizontal wells may easily disturb the hydrate reservoir. Cement hydration in wellbore is an exothermic reaction, which may lead to the premature dissociation of hydrate, thereby threatening the wellbore integrity. In the present study, experimental and numerical investigations are carried out to analyze the cement hydration in a wide range of temperatures. Then, a coupled model is established considering the multi-field coupling mechanisms between horizontal wells and the hydrate reservoir during well cementing. In the proposed model, the cement hydration, phase change of hydrate, and the multiphase flow in porous hydrate layer are considered. The cement hydration process, transient temperature and pressure distributions, and the hydrate phase change are analyzed by numerical simulations. Results show that the temperature of wellbore and hydrate increases rapidly. The saturation of the hydrate layer within the region 3 times of wellbore diameter decreases significantly. The pressure at the wellbore-hydrate layer interface increases significantly, which may lead to gas penetration into the wellbore. Moreover, threats imposed by the premature dissociation of hydrate last even for a long period after well cementing. | ||
650 | 4 | |a Cement hydration | |
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650 | 4 | |a Horizontal well | |
650 | 4 | |a Coupling mechanisms | |
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700 | 1 | |a Wang, Zhiyuan |e verfasserin |4 aut | |
700 | 1 | |a Gao, Yonghai |e verfasserin |4 aut | |
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10.1016/j.conbuildmat.2023.133505 doi (DE-627)ELV065103289 (ELSEVIER)S0950-0618(23)03222-1 DE-627 ger DE-627 rda eng 690 VZ 56.45 bkl Wang, Xuerui verfasserin aut Investigation of multi-field coupling mechanisms during well cement through gas hydrate layer in horizontal well 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Exploitation of natural gas hydrates from horizontal wells can significantly improve the production rate and final recovery. However, the long interaction surfaces of horizontal wells may easily disturb the hydrate reservoir. Cement hydration in wellbore is an exothermic reaction, which may lead to the premature dissociation of hydrate, thereby threatening the wellbore integrity. In the present study, experimental and numerical investigations are carried out to analyze the cement hydration in a wide range of temperatures. Then, a coupled model is established considering the multi-field coupling mechanisms between horizontal wells and the hydrate reservoir during well cementing. In the proposed model, the cement hydration, phase change of hydrate, and the multiphase flow in porous hydrate layer are considered. The cement hydration process, transient temperature and pressure distributions, and the hydrate phase change are analyzed by numerical simulations. Results show that the temperature of wellbore and hydrate increases rapidly. The saturation of the hydrate layer within the region 3 times of wellbore diameter decreases significantly. The pressure at the wellbore-hydrate layer interface increases significantly, which may lead to gas penetration into the wellbore. Moreover, threats imposed by the premature dissociation of hydrate last even for a long period after well cementing. Cement hydration Hydrate Horizontal well Coupling mechanisms Liu, Dingyi verfasserin aut Sun, Baojiang verfasserin aut Liu, Shujie verfasserin aut Wang, Zhiyuan verfasserin aut Gao, Yonghai verfasserin aut Enthalten in Construction and building materials Amsterdam [u.a.] : Elsevier Science, 1987 407 Online-Ressource (DE-627)320423115 (DE-600)2002804-0 (DE-576)259271187 nnns volume:407 GBV_USEFLAG_U GBV_ELV SYSFLAG_U 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_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 56.45 Baustoffkunde VZ AR 407 |
spelling |
10.1016/j.conbuildmat.2023.133505 doi (DE-627)ELV065103289 (ELSEVIER)S0950-0618(23)03222-1 DE-627 ger DE-627 rda eng 690 VZ 56.45 bkl Wang, Xuerui verfasserin aut Investigation of multi-field coupling mechanisms during well cement through gas hydrate layer in horizontal well 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Exploitation of natural gas hydrates from horizontal wells can significantly improve the production rate and final recovery. However, the long interaction surfaces of horizontal wells may easily disturb the hydrate reservoir. Cement hydration in wellbore is an exothermic reaction, which may lead to the premature dissociation of hydrate, thereby threatening the wellbore integrity. In the present study, experimental and numerical investigations are carried out to analyze the cement hydration in a wide range of temperatures. Then, a coupled model is established considering the multi-field coupling mechanisms between horizontal wells and the hydrate reservoir during well cementing. In the proposed model, the cement hydration, phase change of hydrate, and the multiphase flow in porous hydrate layer are considered. The cement hydration process, transient temperature and pressure distributions, and the hydrate phase change are analyzed by numerical simulations. Results show that the temperature of wellbore and hydrate increases rapidly. The saturation of the hydrate layer within the region 3 times of wellbore diameter decreases significantly. The pressure at the wellbore-hydrate layer interface increases significantly, which may lead to gas penetration into the wellbore. Moreover, threats imposed by the premature dissociation of hydrate last even for a long period after well cementing. Cement hydration Hydrate Horizontal well Coupling mechanisms Liu, Dingyi verfasserin aut Sun, Baojiang verfasserin aut Liu, Shujie verfasserin aut Wang, Zhiyuan verfasserin aut Gao, Yonghai verfasserin aut Enthalten in Construction and building materials Amsterdam [u.a.] : Elsevier Science, 1987 407 Online-Ressource (DE-627)320423115 (DE-600)2002804-0 (DE-576)259271187 nnns volume:407 GBV_USEFLAG_U GBV_ELV SYSFLAG_U 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_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 56.45 Baustoffkunde VZ AR 407 |
allfields_unstemmed |
10.1016/j.conbuildmat.2023.133505 doi (DE-627)ELV065103289 (ELSEVIER)S0950-0618(23)03222-1 DE-627 ger DE-627 rda eng 690 VZ 56.45 bkl Wang, Xuerui verfasserin aut Investigation of multi-field coupling mechanisms during well cement through gas hydrate layer in horizontal well 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Exploitation of natural gas hydrates from horizontal wells can significantly improve the production rate and final recovery. However, the long interaction surfaces of horizontal wells may easily disturb the hydrate reservoir. Cement hydration in wellbore is an exothermic reaction, which may lead to the premature dissociation of hydrate, thereby threatening the wellbore integrity. In the present study, experimental and numerical investigations are carried out to analyze the cement hydration in a wide range of temperatures. Then, a coupled model is established considering the multi-field coupling mechanisms between horizontal wells and the hydrate reservoir during well cementing. In the proposed model, the cement hydration, phase change of hydrate, and the multiphase flow in porous hydrate layer are considered. The cement hydration process, transient temperature and pressure distributions, and the hydrate phase change are analyzed by numerical simulations. Results show that the temperature of wellbore and hydrate increases rapidly. The saturation of the hydrate layer within the region 3 times of wellbore diameter decreases significantly. The pressure at the wellbore-hydrate layer interface increases significantly, which may lead to gas penetration into the wellbore. Moreover, threats imposed by the premature dissociation of hydrate last even for a long period after well cementing. Cement hydration Hydrate Horizontal well Coupling mechanisms Liu, Dingyi verfasserin aut Sun, Baojiang verfasserin aut Liu, Shujie verfasserin aut Wang, Zhiyuan verfasserin aut Gao, Yonghai verfasserin aut Enthalten in Construction and building materials Amsterdam [u.a.] : Elsevier Science, 1987 407 Online-Ressource (DE-627)320423115 (DE-600)2002804-0 (DE-576)259271187 nnns volume:407 GBV_USEFLAG_U GBV_ELV SYSFLAG_U 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_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 56.45 Baustoffkunde VZ AR 407 |
allfieldsGer |
10.1016/j.conbuildmat.2023.133505 doi (DE-627)ELV065103289 (ELSEVIER)S0950-0618(23)03222-1 DE-627 ger DE-627 rda eng 690 VZ 56.45 bkl Wang, Xuerui verfasserin aut Investigation of multi-field coupling mechanisms during well cement through gas hydrate layer in horizontal well 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Exploitation of natural gas hydrates from horizontal wells can significantly improve the production rate and final recovery. However, the long interaction surfaces of horizontal wells may easily disturb the hydrate reservoir. Cement hydration in wellbore is an exothermic reaction, which may lead to the premature dissociation of hydrate, thereby threatening the wellbore integrity. In the present study, experimental and numerical investigations are carried out to analyze the cement hydration in a wide range of temperatures. Then, a coupled model is established considering the multi-field coupling mechanisms between horizontal wells and the hydrate reservoir during well cementing. In the proposed model, the cement hydration, phase change of hydrate, and the multiphase flow in porous hydrate layer are considered. The cement hydration process, transient temperature and pressure distributions, and the hydrate phase change are analyzed by numerical simulations. Results show that the temperature of wellbore and hydrate increases rapidly. The saturation of the hydrate layer within the region 3 times of wellbore diameter decreases significantly. The pressure at the wellbore-hydrate layer interface increases significantly, which may lead to gas penetration into the wellbore. Moreover, threats imposed by the premature dissociation of hydrate last even for a long period after well cementing. Cement hydration Hydrate Horizontal well Coupling mechanisms Liu, Dingyi verfasserin aut Sun, Baojiang verfasserin aut Liu, Shujie verfasserin aut Wang, Zhiyuan verfasserin aut Gao, Yonghai verfasserin aut Enthalten in Construction and building materials Amsterdam [u.a.] : Elsevier Science, 1987 407 Online-Ressource (DE-627)320423115 (DE-600)2002804-0 (DE-576)259271187 nnns volume:407 GBV_USEFLAG_U GBV_ELV SYSFLAG_U 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_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 56.45 Baustoffkunde VZ AR 407 |
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10.1016/j.conbuildmat.2023.133505 doi (DE-627)ELV065103289 (ELSEVIER)S0950-0618(23)03222-1 DE-627 ger DE-627 rda eng 690 VZ 56.45 bkl Wang, Xuerui verfasserin aut Investigation of multi-field coupling mechanisms during well cement through gas hydrate layer in horizontal well 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Exploitation of natural gas hydrates from horizontal wells can significantly improve the production rate and final recovery. However, the long interaction surfaces of horizontal wells may easily disturb the hydrate reservoir. Cement hydration in wellbore is an exothermic reaction, which may lead to the premature dissociation of hydrate, thereby threatening the wellbore integrity. In the present study, experimental and numerical investigations are carried out to analyze the cement hydration in a wide range of temperatures. Then, a coupled model is established considering the multi-field coupling mechanisms between horizontal wells and the hydrate reservoir during well cementing. In the proposed model, the cement hydration, phase change of hydrate, and the multiphase flow in porous hydrate layer are considered. The cement hydration process, transient temperature and pressure distributions, and the hydrate phase change are analyzed by numerical simulations. Results show that the temperature of wellbore and hydrate increases rapidly. The saturation of the hydrate layer within the region 3 times of wellbore diameter decreases significantly. The pressure at the wellbore-hydrate layer interface increases significantly, which may lead to gas penetration into the wellbore. Moreover, threats imposed by the premature dissociation of hydrate last even for a long period after well cementing. Cement hydration Hydrate Horizontal well Coupling mechanisms Liu, Dingyi verfasserin aut Sun, Baojiang verfasserin aut Liu, Shujie verfasserin aut Wang, Zhiyuan verfasserin aut Gao, Yonghai verfasserin aut Enthalten in Construction and building materials Amsterdam [u.a.] : Elsevier Science, 1987 407 Online-Ressource (DE-627)320423115 (DE-600)2002804-0 (DE-576)259271187 nnns volume:407 GBV_USEFLAG_U GBV_ELV SYSFLAG_U 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_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 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_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 56.45 Baustoffkunde VZ AR 407 |
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690 VZ 56.45 bkl Investigation of multi-field coupling mechanisms during well cement through gas hydrate layer in horizontal well Cement hydration Hydrate Horizontal well Coupling mechanisms |
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ddc 690 bkl 56.45 misc Cement hydration misc Hydrate misc Horizontal well misc Coupling mechanisms |
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ddc 690 bkl 56.45 misc Cement hydration misc Hydrate misc Horizontal well misc Coupling mechanisms |
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Investigation of multi-field coupling mechanisms during well cement through gas hydrate layer in horizontal well |
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Investigation of multi-field coupling mechanisms during well cement through gas hydrate layer in horizontal well |
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Wang, Xuerui |
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Wang, Xuerui Liu, Dingyi Sun, Baojiang Liu, Shujie Wang, Zhiyuan Gao, Yonghai |
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investigation of multi-field coupling mechanisms during well cement through gas hydrate layer in horizontal well |
title_auth |
Investigation of multi-field coupling mechanisms during well cement through gas hydrate layer in horizontal well |
abstract |
Exploitation of natural gas hydrates from horizontal wells can significantly improve the production rate and final recovery. However, the long interaction surfaces of horizontal wells may easily disturb the hydrate reservoir. Cement hydration in wellbore is an exothermic reaction, which may lead to the premature dissociation of hydrate, thereby threatening the wellbore integrity. In the present study, experimental and numerical investigations are carried out to analyze the cement hydration in a wide range of temperatures. Then, a coupled model is established considering the multi-field coupling mechanisms between horizontal wells and the hydrate reservoir during well cementing. In the proposed model, the cement hydration, phase change of hydrate, and the multiphase flow in porous hydrate layer are considered. The cement hydration process, transient temperature and pressure distributions, and the hydrate phase change are analyzed by numerical simulations. Results show that the temperature of wellbore and hydrate increases rapidly. The saturation of the hydrate layer within the region 3 times of wellbore diameter decreases significantly. The pressure at the wellbore-hydrate layer interface increases significantly, which may lead to gas penetration into the wellbore. Moreover, threats imposed by the premature dissociation of hydrate last even for a long period after well cementing. |
abstractGer |
Exploitation of natural gas hydrates from horizontal wells can significantly improve the production rate and final recovery. However, the long interaction surfaces of horizontal wells may easily disturb the hydrate reservoir. Cement hydration in wellbore is an exothermic reaction, which may lead to the premature dissociation of hydrate, thereby threatening the wellbore integrity. In the present study, experimental and numerical investigations are carried out to analyze the cement hydration in a wide range of temperatures. Then, a coupled model is established considering the multi-field coupling mechanisms between horizontal wells and the hydrate reservoir during well cementing. In the proposed model, the cement hydration, phase change of hydrate, and the multiphase flow in porous hydrate layer are considered. The cement hydration process, transient temperature and pressure distributions, and the hydrate phase change are analyzed by numerical simulations. Results show that the temperature of wellbore and hydrate increases rapidly. The saturation of the hydrate layer within the region 3 times of wellbore diameter decreases significantly. The pressure at the wellbore-hydrate layer interface increases significantly, which may lead to gas penetration into the wellbore. Moreover, threats imposed by the premature dissociation of hydrate last even for a long period after well cementing. |
abstract_unstemmed |
Exploitation of natural gas hydrates from horizontal wells can significantly improve the production rate and final recovery. However, the long interaction surfaces of horizontal wells may easily disturb the hydrate reservoir. Cement hydration in wellbore is an exothermic reaction, which may lead to the premature dissociation of hydrate, thereby threatening the wellbore integrity. In the present study, experimental and numerical investigations are carried out to analyze the cement hydration in a wide range of temperatures. Then, a coupled model is established considering the multi-field coupling mechanisms between horizontal wells and the hydrate reservoir during well cementing. In the proposed model, the cement hydration, phase change of hydrate, and the multiphase flow in porous hydrate layer are considered. The cement hydration process, transient temperature and pressure distributions, and the hydrate phase change are analyzed by numerical simulations. Results show that the temperature of wellbore and hydrate increases rapidly. The saturation of the hydrate layer within the region 3 times of wellbore diameter decreases significantly. The pressure at the wellbore-hydrate layer interface increases significantly, which may lead to gas penetration into the wellbore. Moreover, threats imposed by the premature dissociation of hydrate last even for a long period after well cementing. |
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Investigation of multi-field coupling mechanisms during well cement through gas hydrate layer in horizontal well |
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Liu, Dingyi Sun, Baojiang Liu, Shujie Wang, Zhiyuan Gao, Yonghai |
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