P-wave of hydrate-bearing sand under temperature cycling

doi:10.1190/1.3515263

GIEC OpenIR > 中国科学院广州能源研究所

	P-wave of hydrate-bearing sand under temperature cycling
	Li, Dongliang 1,2,3; Wang, Dong 4; Liang, Deqing 1,2
	2011
发表期刊	GEOPHYSICS
卷号	76 期号:1 页码:E1-E7
摘要	P-wave velocity was used to study the formation of gas hydrates that were formed from methane, CO(2), and propane in the pores of sand particles under temperature cycling. During the temperature-cycling tests, additional hydrate or ice formation can be demonstrated by investigating the velocities and amplitude of the P-wave. The experiments indicated that temperature cycling can accelerate hydrate accumulation in the pore space of sediments. Although most of the water in the pore space of sand can transform into gas hydrate after several temperature cycles, the formation of propane hydrate was slower than that of methane hydrate or CO(2) hydrate. To estimate the hydrate saturation, an effective-medium theory was used. The results corroborated the validity of the contact model that the hydrate acted as a mineral grain to support the sediment frame. According to the calculation results, the methane-hydrate saturation can be up to 0.85 after three temperature cycles. The evaluation results accord with those of some natural hydrates in sand layers.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1190/1.3515263
研究领域[WOS]	Geochemistry & Geophysics
关键词[WOS]	GAS-HYDRATE ; METHANE HYDRATE ; SEDIMENTS ; VELOCITY ; WATER
收录类别	SCI
语种	英语
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000286620500006
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/10414
专题	中国科学院广州能源研究所
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou, Guangdong, Peoples R China 2.Key Lab Renewable Energy & Gas Hydrate, Guangzhou, Guangdong, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Acoust, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Dongliang,Wang, Dong,Liang, Deqing. P-wave of hydrate-bearing sand under temperature cycling[J]. GEOPHYSICS,2011,76(1):E1-E7.
APA	Li, Dongliang,Wang, Dong,&Liang, Deqing.(2011).P-wave of hydrate-bearing sand under temperature cycling.GEOPHYSICS,76(1),E1-E7.
MLA	Li, Dongliang,et al."P-wave of hydrate-bearing sand under temperature cycling".GEOPHYSICS 76.1(2011):E1-E7.