气候变化领域集成服务门户(CCPortal): Thermal properties of sedimentary rocks in the Tarim Basin, northwestern China

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DOI	10.1306/11211817179
	Thermal properties of sedimentary rocks in the Tarim Basin, northwestern China
	Li X.; Liu S.; Feng C.
发表日期	2019
ISSN	0149-1423
卷号	103 期号:7
英文摘要	Thermal properties of rocks are essential parameters for investigating the geothermal regime of sedimentary basins, and they are also important factors in assessments of hydrocarbon and geothermal energy resources. The Tarim Basin, the largest basin located in the north of the Tibetan Plateau, northwestern China, has great hydrocarbon resource potential and is an ongoing target for industry exploration. However, the thermal properties of sedimentary rocks within the basin are yet to be systematically investigated at a basin scale, thereby limiting our understanding of the thermal regime in the basin. Here, we collected 101 samples of sedimentary rocks and measured their thermal properties. Our results show that the ranges (and means) of thermal conductivity, radiogenic heat production, and specific heat capacity are 1.08- 5.35 W/mK (2.52± 0.99 W/mK), 0.03-3.24 μW/m3 (1.24± 0.87 μW/m3), and 0.75-1.10 kJ/(kg °C) (0.87± 0.07 kJ/(kg °C)), respectively. Volumetric heat capacity and thermal diffusivity at the temperature of 40°C range from 1.61 to 2.79 MJ/(m3 K) (2.26± 0.25 MJ/[m3 K]) and 0.44-2.95×10-6 m2/s ((1.12± 0.53) ×10-6 m2/s), respectively. The thermal properties vary considerably for different lithologies, even within the same lithotype, indicating that thermal properties alone cannot be used to distinguish lithology. Thermal conductivity increases with increased burial depth, density, and stratigraphic age, suggesting the dominant influence is porosity variation on thermal conductivity. Furthermore, a strong contrast in the thermal properties of rock salt and other sedimentary rocks perturbs the geothermal pattern, which should be taken into consideration when performing basin modeling. © 2019. The American Association of Petroleum Geologists.
语种	英语
scopus关键词	Geothermal energy; Hydrocarbons; Lithology; Petroleum prospecting; Sedimentology; Specific heat; Stratigraphy; Thermal conductivity; Hydrocarbon resources; Northwestern China; Porosity variations; Radiogenic heat production; Sedimentary basin; Stratigraphic age; Strong contrast; Volumetric heat capacity; Sedimentary rocks; exploration; geothermal energy; heat capacity; hydrocarbon exploration; hydrocarbon resource; lithology; sedimentary basin; sedimentary rock; thermal conductivity; thermal regime; China; Qinghai-Xizang Plateau; Tarim Basin; Xinjiang Uygur
来源期刊	AAPG Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/125058
作者单位	Key Laboratory of Coast and Island Development, School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, China; MOE Key Laboratory of Coast and Island Development, School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing, China; Collaborative Innovation Center for South China Sea Studies, Nanjing, China; Geological Exploration Institution of Shandong Zhengyuan, Jinan, China
推荐引用方式 GB/T 7714	Li X.,Liu S.,Feng C.. Thermal properties of sedimentary rocks in the Tarim Basin, northwestern China[J],2019,103(7).
APA	Li X.,Liu S.,&Feng C..(2019).Thermal properties of sedimentary rocks in the Tarim Basin, northwestern China.AAPG Bulletin,103(7).
MLA	Li X.,et al."Thermal properties of sedimentary rocks in the Tarim Basin, northwestern China".AAPG Bulletin 103.7(2019).