SCSIO OpenIR  > 中科院边缘海地质重点实验室
Comparison of different-type heat flows at typical sites in natural gas hydrate exploration area on the northern slope of the South China Sea
Xu, X; Li, YM; Luo, XH; Shi, XB; Yang, XQ; gz_xuxing@163.com; liyamin05@hotmail.com
2012
Source PublicationCHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
ISSN0001-5733
Volume55Issue:3Pages:998-1006
AbstractIn the natural gas hydrate exploration on the northern slope of the South China Sea, three types of heat flow data were derived from drilling measurement, probe measurement, and BSR measurement. To investigate the differences of different seafloor heat flow measurement methods and the characteristics of natural gas hydrate exploration area on the northern slope of the South China Sea, the paper takes SH-2 and SH-5, the two wells for natural gas hydrate exploration, as the typical sites to describe the three heat flow measurement methods and compare the results at the two sites. The following results were gotten. First, the probe-type heat flow is almost identical with drilling-type heat flow at Site SH-2, but is lower obviously at Site SH-5; BSR-type heat flows calculated with actual average heat-conductivity are almost identical with drilling-type heat flows at both Site SH-2 and Site SH-5. Second, the obviously lower probe-type heat flow than drilling-type heat flow at Site SH-5 might be caused by liquid activities, as indicated by analysis of the characteristics of seismic profile and heat flow of neighboring sites. Third, the Site SH-5 has higher geothermal gradient and heat flow than Site SH-2, which may be an important reason of failure to get hydrate at Site SH-5. Furthermore, it may be the late-stage diapir that brought higher temperature and decomposed the former hydrate at Site SH-5.
Department[Xu Xing; Luo Xian-Hu] Guangzhou Marine Geol Survey, Guangzhou 510760, Guangdong, Peoples R China; [Li Ya-Min; Shi Xiao-Bin; Yang Xiao-Qiu] Chinese Acad Sci, S China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China
KeywordNorThern Slope Of The South China Sea Baiyun Sag Heat Flow Measurement Bsr Natural Gas Hydrate
Subject AreaGeochemistry & Geophysics
Language中文
Funding Project海洋地质
WOS IDWOS:000302332300030
Citation statistics
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/10349
Collection中科院边缘海地质重点实验室
Corresponding Authorgz_xuxing@163.com; liyamin05@hotmail.com
Recommended Citation
GB/T 7714
Xu, X,Li, YM,Luo, XH,et al. Comparison of different-type heat flows at typical sites in natural gas hydrate exploration area on the northern slope of the South China Sea[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2012,55(3):998-1006.
APA Xu, X.,Li, YM.,Luo, XH.,Shi, XB.,Yang, XQ.,...&liyamin05@hotmail.com.(2012).Comparison of different-type heat flows at typical sites in natural gas hydrate exploration area on the northern slope of the South China Sea.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,55(3),998-1006.
MLA Xu, X,et al."Comparison of different-type heat flows at typical sites in natural gas hydrate exploration area on the northern slope of the South China Sea".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 55.3(2012):998-1006.
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