A pilot-scale study of gas production from hydrate deposits with two-spot horizontal well system

doi:10.1016/j.apenergy.2016.05.061

GIEC OpenIR > 中国科学院广州能源研究所

	A pilot-scale study of gas production from hydrate deposits with two-spot horizontal well system
	Li, Bo 1,2; Liang, Yun-Pei 1,2; Li, Xiao-Sen 3; Zhou, Lei 1,2
	2016-08-15
发表期刊	APPLIED ENERGY
卷号	176 页码:12-21
摘要	The hydrate dissociation and gas production behaviors are investigated in a pilot-scale hydrate simulator (PHS) using a novel two-spot horizontal well system through experimental and numerical simulations. There are two horizontal wells located in the same symmetrical plane of the cylindrical reactor. Gas and water are produced from the lower well under depressurization, while hot water with the temperature of 80.0 degrees C is injected into the PHS from the upper one at a constant rate of 50 mL/min. Both the experimental and numerical results show that nearly all the produced gas is originated from hydrate dissociation, and the initial free gas in the vessel contributes little to the final gas production. The injected hot water is more likely to flow downwards under the gravity effect and be produced from the lower well, and hydrate dissociation is mainly stimulated by the heat conduction in the reactor. Two irregular dissociation interfaces are observed to surround the hydrate undissociated areas. One interface expands from the upper well, while the other one shrinks from the boundaries. The results of the gas-to-water ratio and the obtained net energy indicate that it is commercially feasible for hydrate exploitation using this kind of well design. In addition, it is found that the production efficiency of the system is strongly dependent on the initial hydrate saturation and the hot water injection rate. (C) 2016 Elsevier Ltd. All rights reserved.
文章类型	Article
关键词	Gas Hydrate Horizontal Well Depressurization Thermal Stimulation Numerical Simulation
WOS标题词	Science & Technology ; Technology
DOI	10.1016/j.apenergy.2016.05.061
研究领域[WOS]	Energy & Fuels ; Engineering
关键词[WOS]	QILIAN MOUNTAIN PERMAFROST ; QINGHAI-TIBET PLATEAU ; METHANE HYDRATE ; POROUS-MEDIA ; NATURAL-GAS ; THERMAL-STIMULATION ; PUFF METHOD ; NUMERICAL-SIMULATION ; VERTICAL WELL ; HEAT-TRANSFER
收录类别	SCI
语种	英语
WOS类目	Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000378969500002
引用统计	被引频次：42[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/344007/11778
专题	中国科学院广州能源研究所
作者单位	1.Chongqing Univ, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China 2.Chongqing Univ, Coll Resources & Environm Sci, Chongqing 400044, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Li, Bo,Liang, Yun-Pei,Li, Xiao-Sen,et al. A pilot-scale study of gas production from hydrate deposits with two-spot horizontal well system[J]. APPLIED ENERGY,2016,176:12-21.
APA	Li, Bo,Liang, Yun-Pei,Li, Xiao-Sen,&Zhou, Lei.(2016).A pilot-scale study of gas production from hydrate deposits with two-spot horizontal well system.APPLIED ENERGY,176,12-21.
MLA	Li, Bo,et al."A pilot-scale study of gas production from hydrate deposits with two-spot horizontal well system".APPLIED ENERGY 176(2016):12-21.