The acoustic velocity characteristics of sediment with gas hydrate revealed by integrated exploration of 3D seismic and OBS data in Shenhu area

doi:10.6038/cjg20140414

CORC > 中国地质调查局 > 中国地质调查局 > 中国地质调查局广州海洋地质调查局

	The acoustic velocity characteristics of sediment with gas hydrate revealed by integrated exploration of 3D seismic and OBS data in Shenhu area
	Zhang Guang-Xue 9; Xu Hua-Ning ; Liu Xue-Wei ; Zhang Ming ; Wu Zhong-Liang ; Liang Jin-Qiang ; Wang Hong-Bing ; Sha Zhi-Bin
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2014
卷号	57 期号:4 页码:1169-1176
关键词	Shenhu Area Integrated exploration Ocean bottom seismometer Gas hydrates Acoustic velocity
ISSN号	0001-5733
DOI	10.6038/cjg20140414
英文摘要	Based on integrated data acquired with 3-D seismic survey and OBS, both the images of subsurface formation and the information of P/S-wave velocities are obtained, which help to make certain the variation of P/S-wave velocity within the gas-hydrate bearing sediments in the study area. Comparison with the results of P/S-wave velocity calculated from travel time inversion indicates that some sediments have relatively high P/S-wave velocity within the depth of 500 m below seafloor. The abrupt rising of P-wave velocity means the presence of gas hydrate and the high velocity interval corresponds to the hydrate stable zone apparently, but the P-wave velocity decreasing as well slight S-wave velocity decreasing is very likely related to the occurrence of free gas. The presumed occurrence of free gas in the area does not agree with the viewpoints deduced from drilling and coring results within limited depth in this area in 2007.
学科主题	地球物理勘探
WOS关键词	SOUTH CHINA SEA ; ZONE ; SYSTEM
WOS研究方向	Geochemistry & Geophysics
语种	中文
出版者	SCIENCE PRESS
WOS记录号	WOS:000335208200014
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40334]
专题	中国地质调查局广州海洋地质调查局
作者单位	1.[Zhang Guang-Xue 2.Xu Hua-Ning 3.Zhang Ming 4.Wu Zhong-Liang 5.Liang Jin-Qiang 6.Wang Hong-Bing 7.Guangzhou Marine Geol Survey, MLR Key Lab Marine Mineral Resources, Guangzhou 510075, Guangdong, Peoples R China 8.China Univ Geosci, Sch Geophys & Informat Technol, Beijing 100083, Peoples R China 9.中国地质调查局广州海洋地质调查局
推荐引用方式 GB/T 7714	Zhang Guang-Xue,Xu Hua-Ning,Liu Xue-Wei,et al. The acoustic velocity characteristics of sediment with gas hydrate revealed by integrated exploration of 3D seismic and OBS data in Shenhu area[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2014,57(4):1169-1176.
APA	Zhang Guang-Xue.,Xu Hua-Ning.,Liu Xue-Wei.,Zhang Ming.,Wu Zhong-Liang.,...&Sha Zhi-Bin.(2014).The acoustic velocity characteristics of sediment with gas hydrate revealed by integrated exploration of 3D seismic and OBS data in Shenhu area.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,57(4),1169-1176.
MLA	Zhang Guang-Xue,et al."The acoustic velocity characteristics of sediment with gas hydrate revealed by integrated exploration of 3D seismic and OBS data in Shenhu area".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 57.4(2014):1169-1176.