Revision of P-wave Velocity and Thickness of Hydrate Layer in Shenhu Area, South China Sea

doi:10.1007/s11802-014-2252-y

CORC > 中国地质调查局 > 中国地质调查局 > 中国地质调查局青岛海洋地质研究所

	Revision of P-wave Velocity and Thickness of Hydrate Layer in Shenhu Area, South China Sea
	Gong Jianming 5; Zhang Xunhua ; Zou Changchun 1; Chen Qiang ; Wang Lichen 1; Yuan Chunfang 2; Hu Gaowei ; Jiang Yubo 3
刊名	JOURNAL OF OCEAN UNIVERSITY OF CHINA
	2014
卷号	13 期号:5 页码:742-746
关键词	velocity ramp thickness hydrate layer Shenhu area
ISSN号	1672-5182
DOI	10.1007/s11802-014-2252-y
英文摘要	To revise P-wave velocity and thickness of the hydrate layer in the Shenhu area of the South China Sea, acoustic and resistivity logging curves are reanalyzed. The waterlogging phenomenon is found in the shallow sediments of five drilling wells, which causes P-wave velocity to approximate the propagation velocity of sea water (about 1500 m s(-1)). This also affects the identification of the hydrate layer and results in the underestimate of its thickness. In addition, because there could be about a 5 m thick velocity ramp above or below the hydrate layer as interpreted by acoustic and resistivity logging curves, the recalibrated thickness of this layer is less than the original estimated thickness. The recalibrated P-wave velocity of the hydrate layer is also higher than the original estimated velocity. For the drilling well with a relatively thin hydrate layer, the velocity ramp plays a more important role in identifying and determining the thickness of the layer.
学科主题	地球物理勘探
WOS研究方向	Oceanography
语种	英语
出版者	OCEAN UNIV CHINA
WOS记录号	WOS:000339095800004
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40297]
专题	中国地质调查局青岛海洋地质研究所
作者单位	1.Qingdao Inst Marine Geol, Key Lab Marine Hydrocarbon Resources & Environm G, Qingdao 266071, Peoples R China 2.China Univ Geosci, Sch Geophys & Informat Technol, Beijing 100083, Peoples R China 3.China Univ Min & Technol Beijing, Coll Geosci & Surveying Engn, Beijing 100083, Peoples R China 4.Ocean Univ China, Coll Marine Geosci, Qingdao 266100, Peoples R China 5.中国地质调查局青岛海洋地质研究所
推荐引用方式 GB/T 7714	Gong Jianming,Zhang Xunhua,Zou Changchun,et al. Revision of P-wave Velocity and Thickness of Hydrate Layer in Shenhu Area, South China Sea[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2014,13(5):742-746.
APA	Gong Jianming.,Zhang Xunhua.,Zou Changchun.,Chen Qiang.,Wang Lichen.,...&Jiang Yubo.(2014).Revision of P-wave Velocity and Thickness of Hydrate Layer in Shenhu Area, South China Sea.JOURNAL OF OCEAN UNIVERSITY OF CHINA,13(5),742-746.
MLA	Gong Jianming,et al."Revision of P-wave Velocity and Thickness of Hydrate Layer in Shenhu Area, South China Sea".JOURNAL OF OCEAN UNIVERSITY OF CHINA 13.5(2014):742-746.