Thermal conductivity characterisation of shallow ground via correlations with geophysical parameters

doi:10.1016/j.enggeo.2020.105633

	Thermal conductivity characterisation of shallow ground via correlations with geophysical parameters
	Tian, Baoqing 1,2; Kong, Yanlong 1,2; Gong, Yulie 3; Ye, Cantao 3; Pang, Zhonghe 1,2; Wang, Jiyang 1,2; Qin, Peirui 4
刊名	ENGINEERING GEOLOGY
	2020-07-01
卷号	272 页码:9
关键词	Thermal conductivity S-wave velocity Density Correlation Shallow ground
ISSN号	0013-7952
DOI	10.1016/j.enggeo.2020.105633
通讯作者	Tian, Baoqing(tianbaoqing@mail.iggcas.ac.cn)
英文摘要	Thermal conductivity is an important physical property of geological formations. For example, a comprehensive assessment of the thermal conductivity variations in the shallow ground surrounding a heat exchanger borehole can be used to determine the installation parameters of a ground-source heat pump. However, in some locations, it is not possible to measure thermal conductivity directly. One of the most common methods to indirectly infer thermal conductivity is to establish correlations between thermal conductivity and various geophysical parameters. By utilising test data acquired from drilling sites and ascertaining the corresponding geophysical parameters via non-invasive geophysical methods, such correlations can be obtained. At 11 test sites, the thermal conductivities were measured in situ via thermal response testing, and the corresponding values for the S-wave velocity and density were calculated using the Microtremor survey method (MSM). The correlations between the thermal conductivity, S-wave velocity, and density in the tested shallow ground were built by exponential fitting. By utilising the established correlations, two-dimensional (2D) cross-sections along the microtremor survey line were created to illustrate the thermal conductivity variations in the shallow ground. These results demonstrate that this approach can be used to infer the thermal conductivities of areas that cannot be tested directly.
资助项目	National Major Project of China[2017ZX05008-007] ; National Key R&D Program of China[2019YFB1504101]
WOS关键词	COMPRESSIONAL WAVE VELOCITY ; ROCKS
WOS研究方向	Engineering ; Geology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000537626200029
资助机构	National Major Project of China ; National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/27226]
专题	中国科学院广州能源研究所
通讯作者	Tian, Baoqing
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510650, Peoples R China 4.Hulunbeier Subsidiary Daqing Oilfield Co LTD, Daqing 163000, Peoples R China
推荐引用方式 GB/T 7714	Tian, Baoqing,Kong, Yanlong,Gong, Yulie,et al. Thermal conductivity characterisation of shallow ground via correlations with geophysical parameters[J]. ENGINEERING GEOLOGY,2020,272:9.
APA	Tian, Baoqing.,Kong, Yanlong.,Gong, Yulie.,Ye, Cantao.,Pang, Zhonghe.,...&Qin, Peirui.(2020).Thermal conductivity characterisation of shallow ground via correlations with geophysical parameters.ENGINEERING GEOLOGY,272,9.
MLA	Tian, Baoqing,et al."Thermal conductivity characterisation of shallow ground via correlations with geophysical parameters".ENGINEERING GEOLOGY 272(2020):9.