| DOI: | 10.1002/2016GL070096
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| 论文题名: | Short-range, overpressure-driven methane migration in coarse-grained gas hydrate reservoirs |
| 作者: | Nole M.; Daigle H.; Cook A.E.; Malinverno A.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8629
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| EISSN: | 1944-8360
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| 出版年: | 2016
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| 卷: | 43, 期:18 | | 起始页码: | 9500
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| 结束页码: | 9508
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| 语种: | 英语
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| 英文关键词: | flow focusing
; gas hydrate
; reservoir simulation
; short advection
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| Scopus关键词: | Advection
; Diffusion in liquids
; Flow of fluids
; Gases
; Hydration
; Methane
; Submarine geology
; Transport properties
; Advective transport
; Effective porosity
; Flow focusing
; Gas hydrate reservoir
; Migration mechanisms
; Reservoir simulation
; Transport mechanism
; Two-dimensional simulations
; Gas hydrates
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| 英文摘要: | Two methane migration mechanisms have been proposed for coarse-grained gas hydrate reservoirs: short-range diffusive gas migration and long-range advective fluid transport from depth. Herein, we demonstrate that short-range fluid flow due to overpressure in marine sediments is a significant additional methane transport mechanism that allows hydrate to precipitate in large quantities in thick, coarse-grained hydrate reservoirs. Two-dimensional simulations demonstrate that this migration mechanism, short-range advective transport, can supply significant amounts of dissolved gas and is unencumbered by limitations of the other two end-member mechanisms. Short-range advective migration can increase the amount of methane delivered to sands as compared to the slow process of diffusion, yet it is not necessarily limited by effective porosity reduction as is typical of updip advection from a deep source. ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84992420555&doi=10.1002%2f2016GL070096&partnerID=40&md5=83cd84d4c70631c2aa836964789308c1
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/9592
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Department of Petroleum and Geosystems Engineering, University of Texas at Austin, Austin, TX, United States
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| Recommended Citation: | |
Nole M.,Daigle H.,Cook A.E.,et al. Short-range, overpressure-driven methane migration in coarse-grained gas hydrate reservoirs[J]. Geophysical Research Letters,2016-01-01,43(18).
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