Full-intensity waveform inversion

doi:10.1190/GEO2017-0682.1

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

	Full-intensity waveform inversion
	Liu, Yike 1; He, Bin 1; Lu, Huiyi 1; Zhang, Zhendong 2; Xie, Xiao-Bi 3; Zheng, Yingcai 4
刊名	GEOPHYSICS
	2018-11-01
卷号	83 期号:6 页码:R649-R658
ISSN号	0016-8033
DOI	10.1190/GEO2017-0682.1
英文摘要	Many full-waveform inversion schemes are based on the iterative perturbation theory to fit the observed waveforms. When the observed waveforms lack low frequencies, those schemes may encounter convergence problems due to cycle skipping when the initial velocity model is far from the true model. To mitigate this difficulty, we have developed a new objective function that fits the seismic-waveform intensity, so the dependence of the starting model can be reduced. The waveform intensity is proportional to the square of its amplitude. Forming the intensity using the waveform is a nonlinear operation, which separates the original waveform spectrum into an ultra-low-frequency part and a higher frequency part, even for data that originally do not have low-frequency contents. Therefore, conducting multiscale inversions starting from ultra-low-frequency intensity data can largely avoid the cycle-skipping problem. We formulate the intensity objective function, the minimization process, and the gradient. Using numerical examples, we determine that the proposed method was very promising and could invert for the model using data lacking low-frequency information.
资助项目	Statoil Petroleum[4503288025] ; National Nature Science Foundation of China[41730425] ; National Nature Science Foundation of China[41430321] ; National Oil and Gas Major Project of China[2017ZX05008-007]
WOS关键词	TRAVEL-TIME INVERSION ; FREQUENCY-DOMAIN ; REFLECTION DATA ; TOMOGRAPHY ; SHOT
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SOC EXPLORATION GEOPHYSICISTS
WOS记录号	WOS:000457502000030
资助机构	Statoil Petroleum ; Statoil Petroleum ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Oil and Gas Major Project of China ; National Oil and Gas Major Project of China ; Statoil Petroleum ; Statoil Petroleum ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Oil and Gas Major Project of China ; National Oil and Gas Major Project of China ; Statoil Petroleum ; Statoil Petroleum ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Oil and Gas Major Project of China ; National Oil and Gas Major Project of China ; Statoil Petroleum ; Statoil Petroleum ; National Nature Science Foundation of China ; National Nature Science Foundation of China ; National Oil and Gas Major Project of China ; National Oil and Gas Major Project of China
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/90505]
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	Liu, Yike
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resource Res, Beijing, Peoples R China 2.King Abdullah Univ Sci & Technol, Thuwal, Saudi Arabia 3.Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA 4.Univ Houston, Houston, TX USA
推荐引用方式 GB/T 7714	Liu, Yike,He, Bin,Lu, Huiyi,et al. Full-intensity waveform inversion[J]. GEOPHYSICS,2018,83(6):R649-R658.
APA	Liu, Yike,He, Bin,Lu, Huiyi,Zhang, Zhendong,Xie, Xiao-Bi,&Zheng, Yingcai.(2018).Full-intensity waveform inversion.GEOPHYSICS,83(6),R649-R658.
MLA	Liu, Yike,et al."Full-intensity waveform inversion".GEOPHYSICS 83.6(2018):R649-R658.