Investigation of the Flow Characteristics of Methane Hydrate Slurries with Low Flow Rates

doi:10.3390/en10010145

GIEC OpenIR > 中国科学院广州能源研究所

	Investigation of the Flow Characteristics of Methane Hydrate Slurries with Low Flow Rates
	Tang, Cuiping1,2,3,4 ; Zhao, Xiangyong1,2,3,4 ; Li, Dongliang1,2,3,4 ; He, Yong 1,2,3,4; Shen, Xiaodong 1,2,3,4; Liang, Deqing1,2,3,4
	2017
发表期刊	ENERGIES
ISSN	1996-1073
卷号	10 期号:1
摘要	Gas hydrate blockage in pipelines during offshore production becomes a major problem with increasing water depth. In this work, a series of experiments on gas hydrate formation in a flow loop was performed with low flow rates of 0.33, 0.66, and 0.88 m/s; the effects of the initial subcooling, flow rate, pressure, and morphology were investigated for methane hydrate formation in the flow loop. The results indicate that the differential pressure drop (Delta P) across two ends of the horizontal straight pipe increases with increasing hydrate concentration at the early stage of gas hydrate formation. When the flow rates of hydrate fluid are low, the higher the subcooling is, the faster the transition of the hydrates macrostructures. Gas hydrates can agglomerate, and sludge hydrates appear at subcoolings of 6.5 and 8.5 degrees C. The difference between the Delta P values at different flow rates is small, and there is no obvious influence of the flow rates on Delta P. Three hydrate macrostructures were observed: slurry-like, sludge-like, and their transition. When the initial pressure is 8.0 MPa, large methane hydrate blockages appear at the gas hydrate concentration of approximately 7%. Based on the gas-liquid two-phase flow model, a correlation between the gas hydrate concentration and the value of Delta P is also presented. These results can enrich the kinetic data of gas hydrate formation and agglomeration and provide guidance for oil and gas transportation in pipelines.
文章类型	Article
关键词	Natural Gas Hydrate Flow Assurance Slurry Sludge Flow Characteristics
WOS标题词	Science & Technology ; Technology
DOI	10.3390/en10010145
研究领域[WOS]	Energy & Fuels
关键词[WOS]	WATER CUT SYSTEMS ; GAS HYDRATE ; ICE-SLURRY ; CRUDE-OIL ; INHIBITORS ; VISCOSITY ; EMULSION ; LOOP ; MODEL
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China(50906087)
WOS类目	Energy & Fuels
WOS记录号	WOS:000392422500144
出版者	MDPI AG
引用统计	被引频次：17[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/344007/14017
专题	中国科学院广州能源研究所天然气水合物基础研究实验室
通讯作者	Liang, Deqing
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.Chinese Acad Sci, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 4.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China
第一作者单位	中国科学院广州能源研究所
推荐引用方式 GB/T 7714	Tang, Cuiping,Zhao, Xiangyong,Li, Dongliang,et al. Investigation of the Flow Characteristics of Methane Hydrate Slurries with Low Flow Rates[J]. ENERGIES,2017,10(1).
APA	Tang, Cuiping,Zhao, Xiangyong,Li, Dongliang,He, Yong,Shen, Xiaodong,&Liang, Deqing.(2017).Investigation of the Flow Characteristics of Methane Hydrate Slurries with Low Flow Rates.ENERGIES,10(1).
MLA	Tang, Cuiping,et al."Investigation of the Flow Characteristics of Methane Hydrate Slurries with Low Flow Rates".ENERGIES 10.1(2017).