DOI: 10.1002/2016GL068656
论文题名: The effect of hydrate saturation on water retention curves in hydrate-bearing sediments
作者: Mahabadi N. ; Zheng X. ; Jang J.
刊名: Geophysical Research Letters
ISSN: 0094-9061
EISSN: 1944-8792
出版年: 2016
卷: 43, 期: 9 起始页码: 4279
结束页码: 4287
语种: 英语
英文关键词: hydrate-bearing sediment
; tetrahydrofuran hydrate
; van Genuchten
; water retention curve
Scopus关键词: Hydration
; Organic solvents
; Pore size
; Sediments
; Fitting parameters
; Hydrate bearing sediments
; Hydrate dissociation
; Hydrate saturation
; Tetrahydrofuran hydrate
; Van Genuchten
; Visual observations
; Water retention curve
; Gas hydrates
; capillary pressure
; experimental study
; gas hydrate
; numerical model
; organic compound
; pore space
; saturation
; sediment
; visual analysis
; water retention
英文摘要: The experimental measurement of water retention curve in hydrate-bearing sediments is critically important to understand the behavior of hydrate dissociation and gas production. In this study, tetrahydrofuran (THF) is selected as hydrate former. The pore habit of THF hydrates is investigated by visual observation in a transparent micromodel. It is confirmed that THF hydrates are not wetting phase on the quartz surface of the micromodel and occupy either an entire pore or part of pore space resulting in change in pore size distribution. And the measurement of water retention curves in THF hydrate-bearing sediments with hydrate saturation ranging from Sh = 0 to Sh = 0.7 is conducted for excess water condition. The experimental results show that the gas entry pressure and the capillary pressure increase with increasing hydrate saturation. Based on the experimental results, fitting parameters for van Genuchten equation are suggested for different hydrate saturation conditions. © 2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84966293334&doi=10.1002%2f2016GL068656&partnerID=40&md5=cdee7d68bc266ac33592b463bb4b18d4
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10024
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: School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, United States
Recommended Citation:
Mahabadi N.,Zheng X.,Jang J.. The effect of hydrate saturation on water retention curves in hydrate-bearing sediments[J]. Geophysical Research Letters,2016-01-01,43(9).