IGGCAS OpenIR  > 油气资源研究院重点实验室
Analysis of direction-decomposed and vector-based elastic reverse time migration using the Hilbert transform
Hu, Ting1,2,3; Liu, Hong1,2,3; Guo, Xuebao1,2,3; Yuan, Yuxin1,2,3; Wang, Zhiyang1,2,3
2019-11-01
Source PublicationGEOPHYSICS
ISSN0016-8033
Volume84Issue:6Pages:R599-R617
AbstractStraightforward implementations of elastic reverse time migration (ERTM) often produce imaging artifacts associated with incorrectly imaged mode conversions, crosstalk, and back-scattered energies. To address these issues, we introduced three approaches: (1) vector-based normalized crosscorrelation imaging conditions (VBNICs), (2) directional separation of wavefields to remove low-wavenumber noise, and (3) postimaging filtering of the dip-angle gathers to eliminate the artifacts caused by nonphysical wave modes. These approaches are combined to create an effective ERTM workflow that can produce high-quality images. Numerical examples demonstrate that, first, VBNICs can produce correct polarities for PP/PS images and can compute migrated dip-angle gathers efficiently by using P/S decomposed Poynting vectors. Second, they achieve improved signal-to-noise and higher resolution when performing up/down decomposition before applying VBNICs, and left/right decomposition enhances steep dips imaging at the computational cost of adding the Hilbert transform to a spatial direction. Third, dip filtering using slope-consistency analysis attenuates the remaining artifacts effectively. An application of the SEG advanced modeling program (SEAM) model demonstrates that our ERTM workflow reduces noise and improves imaging ability for complex geologic areas.
DOI10.1190/GEO2018-0324.1
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; China National Petroleum Corporation ; China National Petroleum Corporation ; China National Petroleum Corporation ; China National Petroleum Corporation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; China National Petroleum Corporation ; China National Petroleum Corporation ; China National Petroleum Corporation ; China National Petroleum Corporation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; China National Petroleum Corporation ; China National Petroleum Corporation ; China National Petroleum Corporation ; China National Petroleum Corporation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; China National Petroleum Corporation ; China National Petroleum Corporation ; China National Petroleum Corporation ; China National Petroleum Corporation
WOS KeywordWAVE-FIELD SEPARATION ; COMMON-IMAGE GATHERS ; S-WAVE ; ANGLE GATHERS ; PHASE ; SCALAR ; DOMAIN ; PRESTACK ; EXTRAPOLATION ; 2D
Language英语
Funding ProjectNational Natural Science Foundation of China[41630319] ; Major State Research Development Program of China[2016YFC0601101] ; China National Petroleum Corporation
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; China National Petroleum Corporation ; China National Petroleum Corporation ; China National Petroleum Corporation ; China National Petroleum Corporation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; China National Petroleum Corporation ; China National Petroleum Corporation ; China National Petroleum Corporation ; China National Petroleum Corporation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; China National Petroleum Corporation ; China National Petroleum Corporation ; China National Petroleum Corporation ; China National Petroleum Corporation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; China National Petroleum Corporation ; China National Petroleum Corporation ; China National Petroleum Corporation ; China National Petroleum Corporation
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000501594400007
PublisherSOC EXPLORATION GEOPHYSICISTS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95830
Collection油气资源研究院重点实验室
Corresponding AuthorHu, Ting
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Hu, Ting,Liu, Hong,Guo, Xuebao,et al. Analysis of direction-decomposed and vector-based elastic reverse time migration using the Hilbert transform[J]. GEOPHYSICS,2019,84(6):R599-R617.
APA Hu, Ting,Liu, Hong,Guo, Xuebao,Yuan, Yuxin,&Wang, Zhiyang.(2019).Analysis of direction-decomposed and vector-based elastic reverse time migration using the Hilbert transform.GEOPHYSICS,84(6),R599-R617.
MLA Hu, Ting,et al."Analysis of direction-decomposed and vector-based elastic reverse time migration using the Hilbert transform".GEOPHYSICS 84.6(2019):R599-R617.
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