Method for extracting angle-domain common image gathers in Kirchhoff beam migration

ZHANG Zhihou; YAO Yu; SUN Hui; YANG Junjie; LI Meng

doi:10.3969/j.issn.1673-9736.2020.03.02

PDF(910 KB)

Global Geology ›› 2020, Vol. 23 ›› Issue (3) : 149-154. DOI: 10.3969/j.issn.1673-9736.2020.03.02

Articles

Method for extracting angle-domain common image gathers in Kirchhoff beam migration

ZHANG Zhihou¹, YAO Yu¹, SUN Hui^1,2, YANG Junjie¹, LI Meng¹

Author information +

History +

Abstract

Kirchhoff beam migration is a simplified Gaussian beam migration, which omits the dynamic information and can calculate multi-arrival traveltime, so it is a high-precision and fast seismic imaging method. In the imaging process, extracting common image gathers can be used for velocity analysis, improving the accuracy of modeling and imaging quality. Compared with the conventional common image gathers extracting methods, the angle-domain common image gathers extracting method can avoid the artifacts caused by multi-arrival seismic waves. The authors present a new method of extracting common image gathers in angle-domain from Kirchhoff beam migration and verify the method by numerical calculations.

Key words

Kirchhoff beam migration / angle-domain common image gathers / beam propagator / travel time calculation

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

ZHANG Zhihou, YAO Yu, SUN Hui, YANG Junjie, LI Meng. Method for extracting angle-domain common image gathers in Kirchhoff beam migration[J]. Global Geology. 2020, 23(3): 149-154 https://doi.org/10.3969/j.issn.1673-9736.2020.03.02

References

Fomel S. 2004. Theory of 3-D angle gathers in wave-equation imaging//SEG Annual Meeting. Society of Exploration Geophy-sicists, 1053-1056.
Gray S H. 2005. Gaussian beam migration of common-shot records.Geophysics,70(4):S71-S77.
Gray S H, Bleistein N. 2009. True-amplitude Gaussian-beam migration.Geophysics,74(2):S11-S23.
Hill N R. 1990. Gaussian beam migration.Geophysics,55(11):1416-1428.
Hill N R. 2001. Prestack Gaussian-beam depth migration.Geophysics,66(4):1240-1250.
Huang J, Yang J, Liao W,et al. 2016. Common-shot Fresnel beam migration based on wave-field approximation in effective vicinity under complex topographic conditions.Geophysical Prospecting,64(3):554-570.
Li H Q, Yang G Q, Li Z C,et al. 2017. A method for extracting angle-domain common-image gathers based on local plane wave decomposition.Oil Geophysical Prospecting,52(6):1177-1183. (in Chinese with English abstract)
Li Z C, Zhu L, Ye Y M,et al. 2008. Extraction and stack imaging of common imaging point gathers in angle domain.Geophysical Prospecting for Petroleum,47(6):567-572. (in Chinese with English abstract)
Liu J, Palacharla G. 2011. Multiarrival Kirchhoff beam migration.Geophysics,76(5):WB109-WB118.
Popov M M, Semtchenok N M, Popov P M. 2010. Depth migration by the Gaussian beam summation method.Geophysics,75(2):S81-S93.
Rickett J E, Sava P C. 2002. Offset and angle-domain common image-point gathers for shot-profile migration.Geophysics,67(3):883-889.
Sava P, Fomel S. 2006. Time-shift imaging condition in seismic migration.Geophysics,71(6):S209-S217.
Sava P C, Fomel S. 2003. Angle-domain common-image gathers by wavefield continuation methods.Geophysics,68(3):1065-1074.
Song J G, Liu S Y. 2018. ADCIGs method of cross-well seismic data based on RTM.Progress in Geophysics,33(2):707-714. (in Chinese with English abstract)
Soubaras R. 2003. Angle gathers for shot-record migration by local harmonic decomposition//65th EAGE Conference & Exhibition. Stavanger Norway:889-892.
Sun H, Zhang Z, Hu G,et al. 2018. Kirchhoff beam migration based on compressive sensing.IEEE Access,6:26520-26529.
Sun Y, Qin F, Chechles S, et al. 2000.3-D prestack Kirchhoff beam migration for depth imaging.Geophysics,65(5):1592-1603.
Xie X B, Wu R S. 2002. Extracting angle domain information from migrated wavefield//SEG Technical Program Expanded Abstracts. Society of Exploration Geophysicists, 1360-1363.
Xu S, Chauris H, Lambaré G,et al. 2001. Common-angle migration:A strategy for imaging complex media. Geophysics,66(6):1877-1894.
Yuan M, Huang J, Liao W,et al. 2017. Least-squares Gaus-sian beam migration.Journal of Geophysics and Enginee-ring,14(1):184-196.

Funding

Supported by projects of the Natural Science Foundation of China (No. 41804100), the China Postdoctoral Science Foundation (No. 2018M640910) and the Fundamental Research Funds for the Central Universities (No.2682018CX36)