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Migration-deposition Characteristics of Exogenous Particles Near the Injection Well in a Groundwater Heat Pump System

文献类型：期刊论文

作者Song, Wei1,2; Liu, Xiaoxiu1,3; Zheng, Changjin1; Wang, Hao1
刊名GEOTHERMICS
出版日期2021-07-01
卷号94页码:10
关键词Groundwater heat pump Physical clogging Exogenous particles Migration-deposition Downhole filter
ISSN号0375-6505
DOI10.1016/j.geothermics.2021.102097
英文摘要As green air conditioning systems, groundwater heat pump systems have been popularized and applied because of their stability and high heat exchange efficiency. However, the low-efficiency recharge caused by clogging restricts the healthy and orderly development of such systems. Physical clogging, accounting for 50% of the total clogging, arises from solid particle accumulation and is the most common type of clogging. In this study, a physical simulation sandbox bench was constructed to simulate groundwater recharge. Tests were conducted under two initial injection pressures of 17.058 kPa and 13.8 kPa and solid matrix particle gradations of 1.026 mm, 1.343 mm, and 1.721 mm to study the migration-deposition of exogenous particles near the injection well induced by groundwater recharging as well as to select suitable downhole filter grades. The results show that when the initial injection pressure and solid matrix particle gradation were low, suspended particles were more susceptible to be sieved and deposited within 24 cm from the injection well. This significantly reduced the permeability and resulted in a rise in the injection pressure. When the high injection pressure of 17.058 kPa was applied, the area in which the permeability coefficient decreases by an order of magnitude compared to the initial value, was less than 10 cm of the wellbore wall, and the quantity of outflow of particles accounted for 34.8% of the inflow. The size range of the suspended particles flowing through the porous medium was 3-30 mu m, providing the parameter basis for downhole filter grade selection. This research provides useful insights into the design and optimization of injection projects to prevent particle clogging in groundwater heat pump systems.
资助项目National Natural Science Foundation of China[41602278] ; China Postdoctoral Science Foundation[2016M601129] ; North China University of Technology Programs[18XN154-006] ; North China University of Technology Programs[110052972027-031]
WOS研究方向Energy & Fuels ; Geology
语种英语
WOS记录号WOS:000661080200001
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; North China University of Technology Programs ; North China University of Technology Programs ; North China University of Technology Programs ; North China University of Technology Programs ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; North China University of Technology Programs ; North China University of Technology Programs ; North China University of Technology Programs ; North China University of Technology Programs ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; North China University of Technology Programs ; North China University of Technology Programs ; North China University of Technology Programs ; North China University of Technology Programs ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; North China University of Technology Programs ; North China University of Technology Programs ; North China University of Technology Programs ; North China University of Technology Programs
源URL[http://ir.iggcas.ac.cn/handle/132A11/102060]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Song, Wei
作者单位1.North China Univ Technol, Sch Civil & Engn, Beijing 100144, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
3.China Univ Min & Technol, Coll Geosci & Surveying Engn, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714		 Song, Wei,Liu, Xiaoxiu,Zheng, Changjin,et al. Migration-deposition Characteristics of Exogenous Particles Near the Injection Well in a Groundwater Heat Pump System[J]. GEOTHERMICS,2021,94:10.
APA Song, Wei,Liu, Xiaoxiu,Zheng, Changjin,&Wang, Hao.(2021).Migration-deposition Characteristics of Exogenous Particles Near the Injection Well in a Groundwater Heat Pump System.GEOTHERMICS,94,10.
MLA Song, Wei,et al."Migration-deposition Characteristics of Exogenous Particles Near the Injection Well in a Groundwater Heat Pump System".GEOTHERMICS 94(2021):10.

入库方式： OAI收割

来源：地质与地球物理研究所

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