Thermal conductivity characterisation of shallow ground via correlations with geophysical parameters

doi:10.1016/j.enggeo.2020.105633

GIEC OpenIR

	Thermal conductivity characterisation of shallow ground via correlations with geophysical parameters
	Tian, Baoqing 1,2; Kong, Yanlong 1,2; Gong, Yulie3 ; Ye, Cantao3 ; Pang, Zhonghe 1,2; Wang, Jiyang 1,2; Qin, Peirui 4
	2020-07-01
Source Publication	ENGINEERING GEOLOGY
ISSN	0013-7952
Volume	272 Pages:9
Corresponding Author	Tian, Baoqing(tianbaoqing@mail.iggcas.ac.cn)
Abstract	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.
Keyword	Thermal conductivity S-wave velocity Density Correlation Shallow ground
DOI	10.1016/j.enggeo.2020.105633
WOS Keyword	COMPRESSIONAL WAVE VELOCITY ; ROCKS
Indexed By	SCI
Language	英语
Funding Project	National Major Project of China[2017ZX05008-007] ; National Key R&D Program of China[2019YFB1504101]
WOS Research Area	Engineering ; Geology
Funding Organization	National Major Project of China ; National Key R&D Program of China
WOS Subject	Engineering, Geological ; Geosciences, Multidisciplinary
WOS ID	WOS:000537626200029
Publisher	ELSEVIER
Citation statistics	Cited Times:7[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.giec.ac.cn/handle/344007/27227
Collection	中国科学院广州能源研究所
Corresponding Author	Tian, Baoqing
Affiliation	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
Recommended Citation 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.

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