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Full-intensity waveform inversion

文献类型：期刊论文

作者Liu, Yike1; He, Bin1; Lu, Huiyi1; Zhang, Zhendong2; Xie, Xiao-Bi3; Zheng, Yingcai4
刊名GEOPHYSICS
出版日期2018-11-01
卷号83期号:6页码:R649-R658
ISSN号0016-8033
DOI10.1190/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.
WOS关键词TRAVEL-TIME INVERSION ; FREQUENCY-DOMAIN ; REFLECTION DATA ; TOMOGRAPHY ; SHOT
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研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000457502000030
出版者SOC EXPLORATION GEOPHYSICISTS
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
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.

入库方式： OAI收割

来源：地质与地球物理研究所

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