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Abstrakty
Stained migration algorithms have the potential to enhance imaging results in specific geological structures, such as subsalt layers and steeply inclined layers, by incorporating the complex domain. However, conventional stained migration algorithms often require correct staining of the target geological body, which is challenging to achieve in practical applications, leading to inaccurate imaging results. To address this issue, we propose a novel regional staining algorithm that takes into account energy-constrained factors. First, we derive the discrete form of the complex domain wave equation and the imaging formula for the imaginary migration result. We then investigate the impact of stained region boundaries on seismic wave propagation when different migration velocities are used as input. By analyzing the energy difference between the reflected waves generated at the stained region boundary and those generated by the target geological body, we introduce positive and negative energy-constrained factors to control the interference waves caused by stained boundaries. The positive energy-constrained factor effectively filters out weak interference waves, while the negative energy-constrained factor eliminates strong interference waves. Numerical examples using a simple three-layer horizontal model and a complex salt model demonstrate that our new regional staining algorithm, based on energy-constrained factors, enhances the illumination of the target geological body and improves the imaging resolution of the target region, even when the stained areas are incorrect.
Wydawca
Czasopismo
Rocznik
Tom
Strony
1807--1817
Opis fizyczny
Bibliogr. 37 poz.
Twórcy
autor
- School of Geosciences, China University of Petroleum (East China), Qingdao 266580, China
- Key Laboratory of Deep Oil and Gas, Qingdao 266580, China
autor
- School of Geosciences, China University of Petroleum (East China), Qingdao 266580, China
- Key Laboratory of Deep Oil and Gas, Qingdao 266580, China
autor
- School of Geosciences, China University of Petroleum (East China), Qingdao 266580, China
- Key Laboratory of Deep Oil and Gas, Qingdao 266580, China
autor
- Sinope Shengli Oilfield, Dongying 257000, China
autor
- Sinope Shengli Oilfield, Dongying 257000, China
autor
- Sinope Shengli Oilfield, Dongying 257000, China
Bibliografia
- 1. Baysal E, Kosloff DD, Sherwood JWC (1983) Reverse time migration.
- 2. Geophysics 48:1514-1524. https://doi.Org/10.1190/1.1441434
- 3. Biondi BL (2006) 3D seismic imaging. Efficient wavefield-continuation methods for prestack migration. SEG Tech Program Expand Abstr 83-102. https://doi.org/10.1190/1.9781560801689.ch7
- 4. Burch T, Hornby B, Sugianto H, Nolte B (2010) Subsalt 3D VSP imaging at Deimos field in the deepwater Gulf of Mexico. Lead Edge 29(6):680-685. https://doi.org/10.1190/1.3255736
- 5. Cao J, Wu RS (2009) Fast acquisition aperture correction in prestack depth migration using beamlet decomposition. Geophysics 74(4):67-74. https://doi.org/10.1190/1.3116284
- 6. Chen B, Jia XF (2014) Staining algorithm for seismic modeling and migration. Geophysics 79(4):17-26. https://doi.org/10.1190/ geo2013-0262.1
- 7. Claerbout JF (1971) Toward a unified theory of reflector mapping.
- 8. Geophysics 36(3):467-481. https://doi.org/1O.119OZ1.1440185
- 9. Dafni R, Symes WW (2016) Dip-angle domain specularity filter design in relation with subsurface offset extended RTM. SEG Tech Program Expand Abstr. https://doi.org/10.1190/segam2016-13820 152.1
- 10. Du QZ, Guo CF, Zhao Q, Gong XF, Wang CX, Li XY (2017) Vectorbased elastic reverse time migration based on scalar imaging condition. Geophysics 82(2):111-127. https://doi.org/10.1190/ geo2016-0146.1
- 11. Du QZ, Zhang XY, Zhang SK, Zhang FY, Fu LY (2021) The pseudolaplace filter for vector-based elastic reverse time migration Front Earth Sci 9:1-20. https://doi.org/10.3389/feart.2021.687835
- 12. Duveneck E (2015) A local dip filtering approach for removing noise from seismic depth images. SEG Tech Program Expand Abstr. https://doi.org/10.1190/segam2015-5819283.1
- 13. Gherasim M, Nolte B, Etgen J, Jilek P, Vu P, Trout M, Hartman K (2010) Wave-equation angle-based illumination weighting for optimized subsalt imaging. Lead Edge 33(4):392-399. https:// doi.org/10.1190/tle33040392.1
- 14. Jackson MPA, Vendeville BC, Schultz-Ela DD (1994) Salt-related structures in the Gulf of Mexico: a field guide for geophysicists. Lead Edge 13(8):837-842. https://doi.org/10.1190/1.1437040
- 15. Kapoor SJ, OBrian M, Desta D, Atakishiyev I, Tomida M (2007) Subsalt imaging: The RAZWAZ experience. SEG Tech Program Expand Abstr DOI 10(1190/1):2792558
- 16. Leveille JP, Jones IF, Zhou ZZ, Wang B, Liu FQ (2011) Subsalt imaging for exploration, production, and development: a review. Geophysics 76(5):3-20. https://doi.org/10.1190/geo2011-0156.1
- 17. Li QH, Jia XF (2015) Time-partition staining algorithm for target-oriented migration. SEG Tech Program Expand Abstr. https://doi. org/10.1190/segam2015-5888935.1
- 18. Li QH, Jia XF (2016) An efficient generalized staining algorithm for imaging weekly illuminated area. SEG Tech Program Expand Abstr. https://doi.org/10.1190/hpc2016-026
- 19. Li QH, Jia XF (2017) Generalized staining algorithm for seismic modeling and migration. Geophysics 82(1):17-26. https://doi.org/10. 1190/geo2015-0652.1
- 20. Li H, Li J, Gu N, Gao J, Zhang H (2020) Ambient noise surface wave reverse time migration for fault imaging. J Geophys Res: Solid Earth 125(12). https://doi.org/10.1029/2020JB020381
- 21. Li H, Li J (2022) Elastic transmitted wave reverse time migration for imaging earth’s interior discontinuities: a numerical study. Bull Seismol Soc Am 112(5):2231-2256. https://doi.org/10.1785/ 0120210325
- 22. Liu SS, Jia XF (2019) Target-oriented RTM with a closed-boundary staining algorithm. SEG Tech Program Expand Abstr. https://doi. org/10.1190/iwmg2019_11.1
- 23. Liu YK, Hu H, Xie XB, Zheng YC, Li P (2011) Reverse time migration of multiples for subsalt imaging. Geophysics 76(5):209-216. https://doi.org/10.1190/geo2014-0429.1
- 24. Malcolm AE, Ursin B, de Hoop MV (2008) Subsalt imaging with internal multiples. SEG Tech Program Expand Abstr. https://doi.org/ 10.1190/1.3063855
- 25. Tang Y, Biondi B (2011) Target-oriented wavefield tomography using synthesized Born data. Geophysics 76(5):191-207. https://doi.org/ 10.1190/geo2010-0383.1
- 26. Wu Y, Li HY (2016) Post-migration enhancement based on image decomposition and target dip fields. SEG Tech Program Expand Abstr. https://doi.org/10.1190/segam2016-13971295.1
- 27. Xue H, Liu Y (2018) Reverse-time migration using multidirectional wavefield decomposition method. Appl Geophys 15:222-233. https://doi.org/10.1007/s11770-018-0670-0
- 28. Xu WC, Li ZC, Wang J, Zhang Y (2015) A pure viscoacoustic equation for VTI media applied in anisotropic RTM. J Geophys Eng 12(6):S969-S977. https://doi.org/10.1088/1742-2132/12/6/969
- 29. Xu SG, Bao QZ, Ren ZM (2023) Target-oriented Q-compensated reverse-time migration by using optimized pure-mode wave equation in anisotropic media. Petrol Sci 22(2):S866-S878. https://doi. org/10.1016/j.petsci.2022.12.016
- 30. Yang TN, Shragge J, Sava P (2012) Illumination compensation for subsalt image-domain wavefield tomography. SEG Tech Program Expand Abstr. https://doi.org/10.1190/segam2012-0563.1
- 31. You JC, Wu RS, Liu XW, Zhang P, Han WG, Zhang GD (2018) Twoway wave equation-based depth migration using one-way propagators on a bilayer sensor seismic acquisition system Bilayer sensor depth migration. Geophys 83(3):S271-S278. https://doi.org/10. 1190/geo2017-0172.1
- 32. You JC, Cao JX (2020) Full-wave-equation depth extrapolation for migration using matrix multiplication. Geophys 85(6):S395-S403. https://doi.org/10.1190/geo2019-0323.1
- 33. You JC, Pan ND, Liu W, Cao JX (2022) Efficient wavefield separation by reformulation of two-way wave-equation depth-extrapolation scheme. Geophys 87(4):S209-S222. https://doi.org/10.1190/ geo2021-0629.1
- 34. Yue YB, Li ZC, Qian ZP, Sun PY, Yang XL, Xue GR (2018) Optimized imaging schemes of PS-wave Kirchhoff prestack time migration. Chinese J Geophys (in Chinese) 61(3):S1188-S1195. https://doi. org/10.6038/cjg2018LO196
- 35. Zhang Q (2013) Specular filter (SF) and dip oriented partial imaging (DOPI) beam migration. SEG Tech Program Expand Abstr. https://doi.org/10.1190/segam2013-1017.1
- 36. Zhang YB, Liu YK (2023) Phase-encoding-based least-squares reverse time migration of controlled-order multiples. Geophysics 88(3):101-113. https://doi.org/10.1190/geo2022-0278.1
- 37. Zhong Y, Gu HM, Liu YT, Mao QH (2022) A new joint reverse time migration method to improve vertical seismic profile image quality. J Petrol Sci Eng. https://doi.org/10.1016/j.petrol.2022.110546
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-11fd1fae-349b-476e-bfc4-863d6de8b840