Assessment of Gas Production Potential from Hydrate Reservoir in Qilian Mountain Permafrost Using Five-Spot Horizontal Well System

doi:10.3390/en81010796

GIEC OpenIR > 中国科学院广州能源研究所

	Assessment of Gas Production Potential from Hydrate Reservoir in Qilian Mountain Permafrost Using Five-Spot Horizontal Well System
	Liang, Yun-Pei 1,2; Li, Xiao-Sen 3; Li, Bo 1,2
	2015-10-01
发表期刊	Energies
卷号	8 期号:10
摘要	The main purpose of this study is to investigate the production behaviors of gas hydrate at site DK-2 in the Qilian Mountain permafrost using the novel five-spot well (5S) system by means of numerical simulation. The whole system is composed of several identical units, and each single unit consists of one injection well and four production wells. All the wells are placed horizontally in the hydrate deposit. The combination method of depressurization and thermal stimulation is employed for hydrate dissociation in the system. Simulation results show that favorable gas production and hydrate dissociation rates, gas-to-water ratio, and energy ratio can be acquired using this kind of multi-well system under suitable heat injection and depressurization driving forces, and the water production rate is manageable in the entire production process under current technology. In addition, another two kinds of two-spot well (2S) systems have also been employed for comparison. It is found that the 5S system will be more commercially profitable than the 2S configurations for gas production under the same operation conditions. Sensitivity analysis indicates that the gas production performance is dependent on the heat injection rate and the well spacing of the 5S system.
文章类型	Article
关键词	Gas Hydrate Depressurization Thermal Stimulation Five-spot Well Qilian Mountain Permafrost
WOS标题词	Science & Technology ; Technology
DOI	10.3390/en81010796
研究领域[WOS]	Energy & Fuels
关键词[WOS]	QINGHAI-TIBET PLATEAU ; METHANE HYDRATE ; POROUS-MEDIA ; NUMERICAL-SIMULATION ; SENSITIVITY-ANALYSIS ; PUFF METHOD ; NORTHWEST CHINA ; DEPOSITS ; DEPRESSURIZATION ; DISSOCIATION
收录类别	SCI
语种	英语
WOS类目	Energy & Fuels
WOS记录号	WOS:000364230500010
引用统计	被引频次：24[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/344007/10899
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, Peoples R China
推荐引用方式 GB/T 7714	Liang, Yun-Pei,Li, Xiao-Sen,Li, Bo. Assessment of Gas Production Potential from Hydrate Reservoir in Qilian Mountain Permafrost Using Five-Spot Horizontal Well System[J]. Energies,2015,8(10).
APA	Liang, Yun-Pei,Li, Xiao-Sen,&Li, Bo.(2015).Assessment of Gas Production Potential from Hydrate Reservoir in Qilian Mountain Permafrost Using Five-Spot Horizontal Well System.Energies,8(10).
MLA	Liang, Yun-Pei,et al."Assessment of Gas Production Potential from Hydrate Reservoir in Qilian Mountain Permafrost Using Five-Spot Horizontal Well System".Energies 8.10(2015).