BUILDING A HETEROGENEOUS Q MODEL: AN APPROACH USING SURFACE REFLECTION DATA

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院油气资源研究重点实验室

	BUILDING A HETEROGENEOUS Q MODEL: AN APPROACH USING SURFACE REFLECTION DATA
	Wang, Jin 1,2; Liu, Wei 1,2; Zhang, Jianfeng 1; Zhao, Zhonghua 3
刊名	JOURNAL OF SEISMIC EXPLORATION
	2017-08-01
卷号	26 期号:4 页码:293-310
关键词	Q model Q scanning compensation effects interpolation algorithm
ISSN号	0963-0651
文献子类	Article
英文摘要	The anelasticity of a subsurface medium will cause dissipation of seismic energy. It is challenging to derive an interval Q model in the absence of VSP data and cross-well data. In this paper, we propose a method to derive the Q model using surface reflection data by introducing an effective Q model. Considering the existence of various types of noise, we estimate and evaluate the Q value in terms of compensation effects along with imaging resolution and noise level. Finally, we obtain an optimal compensation result with better resolution and wider bandwidth. Specifically, the effective Q model can be estimated using scanning technology at selected CDP locations to avoid the difficulties of determining a reference event and the thin-bed tuning effect in the conventional spectrum ratio method. The whole Q model can be obtained by a type of interpolation algorithm constrained by geological interfaces, which can be used in the de-absorption prestack time migration directly or in the de-absorption prestack depth migration with the proper time-to-depth conversion. Finally we demonstrate the effectiveness of the proposed approach using a field data example from eastern China. A high-resolution image is obtained.
WOS关键词	PRESTACK DEPTH MIGRATION ; COMPENSATION ; ATTENUATION ; ABSORPTION ; DISPERSION
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	GEOPHYSICAL PRESS
WOS记录号	WOS:000410465100001
资助机构	National Natural Science Fund of China(41330316) ; National Natural Science Fund of China(41330316) ; National Natural Science Fund of China(41330316) ; National Natural Science Fund of China(41330316)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/61931]
专题	地质与地球物理研究所_中国科学院油气资源研究重点实验室
通讯作者	Wang, Jin
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100029, Peoples R China 3.Daqing Oilfield Co Ltd, Explorat & Dev Res Inst, Daqing 163712, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jin,Liu, Wei,Zhang, Jianfeng,et al. BUILDING A HETEROGENEOUS Q MODEL: AN APPROACH USING SURFACE REFLECTION DATA[J]. JOURNAL OF SEISMIC EXPLORATION,2017,26(4):293-310.
APA	Wang, Jin,Liu, Wei,Zhang, Jianfeng,&Zhao, Zhonghua.(2017).BUILDING A HETEROGENEOUS Q MODEL: AN APPROACH USING SURFACE REFLECTION DATA.JOURNAL OF SEISMIC EXPLORATION,26(4),293-310.
MLA	Wang, Jin,et al."BUILDING A HETEROGENEOUS Q MODEL: AN APPROACH USING SURFACE REFLECTION DATA".JOURNAL OF SEISMIC EXPLORATION 26.4(2017):293-310.