Geothermal measurements in the pilot-boreholes of the China Continental Scientific Drilling

	Geothermal measurements in the pilot-boreholes of the China Continental Scientific Drilling
	Wang, JY ; Hu, SB ; Yang, WC ; Chen, BH ; Chen, ZY ; Li, TJ
刊名	CHINESE SCIENCE BULLETIN
	2001-10-01
卷号	46 期号:20 页码:1745-1748
关键词	temperature gradient thermal conductivity heat flow CCSD North Jiangsu
ISSN号	1001-6538
文献子类	Article
英文摘要	The geothermal measurements in the pilot-boreholes of the China Continental Scientific Drilling (CCSD) indicate that the temperature gradients in the target area of the deep drilling range from 19 to 26 degreesC/km, which is lower than that (25-30 degreesC/km) for the global continental area and similar to that for the KTB (21-28 degreesC/km). Thermal conductivity measurements for 44 core samples show that the ultra-high pressure (UHF) metamorphic rocks have 50% higher thermal conductivity (with a mean of 3.94 +/- 1.26 W/mK) than that for the average value of the upper crust. The measured heat flow values vary between 76 and 80 mW/m(2), higher than that for the global continental area (65 +/- 1.6 mW/m(2)) and the continental China (61 +/- 15.5 mW/m(2)) as well as the adjacent North Jiangsu Basin (68 mW/m(2)), but lower than that below 1000 in in the KTB (85 mW/m(2)). The elevated heat flow in the pilot-boreholes can be attributed to the lateral heat concentration due to higher rock thermal conductivity of the UHP belt than that of the adjacent rocks. Lower deep temperature in the target area of the deep drilling can be expected due to the lower measured temperature gradient, which means that the Sulu area is geothermally suitable for continental deep drilling.
WOS关键词	HEAT-FLOW ; DATA SET ; ROCKS ; KTB
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000172304000017
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/76911]
专题	中国科学院地质与地球物理研究所
通讯作者	Wang, JY
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Minist Land & Resources China, Inst Geol, Beijing 100037, Peoples R China
推荐引用方式 GB/T 7714	Wang, JY,Hu, SB,Yang, WC,et al. Geothermal measurements in the pilot-boreholes of the China Continental Scientific Drilling[J]. CHINESE SCIENCE BULLETIN,2001,46(20):1745-1748.
APA	Wang, JY,Hu, SB,Yang, WC,Chen, BH,Chen, ZY,&Li, TJ.(2001).Geothermal measurements in the pilot-boreholes of the China Continental Scientific Drilling.CHINESE SCIENCE BULLETIN,46(20),1745-1748.
MLA	Wang, JY,et al."Geothermal measurements in the pilot-boreholes of the China Continental Scientific Drilling".CHINESE SCIENCE BULLETIN 46.20(2001):1745-1748.