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Mathematical foundation of migration

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Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-14104648
... migration and the spatial filtering operations of seismic beamforming are analyzed by Guigné et al (2014), where the methods are described in detail. The formalism of inversion theory and its relationship to the generalized Radon transform by Beylkin (1985) established a rigorous mathematical foundation...
Journal Articles
OIJ 2018 (10): 16–19.
Paper Number: OIJ-2018-10-016-019-RU
Published: 01 October 2018
... on the results of mathematical modeling carried out by us earlier and with the existing oil content of the Khanty-Mansi and Nyurol regions. The depths of probable detection of hydrocarbon accumulations in the regions of fluid-conducting faults in the foundation, for example, Shaimsky, where the increase...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 5–7, 1974
Paper Number: OTC-2081-MS
... on design, installation and performance of grouted piles and undreamed footings and to suggest research studies which have potential for making significant improvements in the design and installation of these foundation types for offshore applications. ULTIMATE AXIAL CAPACITY Mathematical Model...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5858744
... and attenuation models. According to these mathematical models of Q filter, many inverse-Q filtering algorithms have been proposed. Hale (1982) gave a time domain Q-deconvolution approach with minimum phase wavelet requirement. Hargreaves and Calvert (1991) proposed an algorithm similar to Stolt migration, which...
Proceedings Papers

Paper presented at the 8th World Petroleum Congress, June 13–18, 1971
Paper Number: WPC-14102
... and fractionation during migration. Qualitative descriptions of such processes are not adequate either for scientific understanding, for suggesting future studies or as a basis for more effective exploration methods. A quantitative approach can be achieved through mathematical models. In this paper, accumulation...
Proceedings Papers

Paper presented at the 2003 SEG Annual Meeting, October 26–31, 2003
Paper Number: SEG-2003-0690
... in the earth''s subsurface. Lailly (1984) and Tarantola (1984) laid the mathematical foundation by which the gradient vector is calculated not by multiplying partial derivative wavefield with the residual but by convolving the forwarded data to back-propagated residual using the same software as in prestack...
Proceedings Papers

Paper presented at the 2001 SEG Annual Meeting, September 9–14, 2001
Paper Number: SEG-2001-1305
... SUMMARY We present a new pattern-based method that separates multiples from primaries. This method finds its mathematical foundation in the work conducted by Nemeth (1996) on coherent noise attenuation by least-squares migration. We show that a similar inverse problem can be formulated...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2000
Paper Number: OTC-12106-MS
... that control sediment stability in near-surface soils are essential for determining their viability as foundation materials for seabottom cables, pipelines, concrete footings and oil-production facilities. In modern continental shelf environments gassy sediments are encountered in rapidly-deposited deltaic...
Proceedings Papers

Paper presented at the 7th World Petroleum Congress, April 2–9, 1967
Paper Number: WPC-3
... Abstract Since the last Congress revised estimates of potential petroleum to be discovered (the foundation of the Resource Base) and that in known reservoirs (Proved Reserves) have continued to contìrm the availability of large volumes of petroleum. Estimates of the discoverable potential can...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0159
... provide a mathematical derivation on the phase shift of the images generated by crosscorrelating the P- and S-waves which are separated using the divergence and curl calculations. Then, we provide a simple method to correct this phase shift by multiplying the final migrated sections by -1. At last, we...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2020, June 14–19, 2020
Paper Number: ISRM-EUROCK-2020-038
... This work is supported by the National Natural Science Foundation of China (51674266, 11671181). The financial supports are gratefully acknowledged. References Abdeljawad T (2015), On conformable fractional calculus, Journal of Computational and Applied Mathematics, 279:57-66.DOI:10.1016/j.cam.2014.10.016...
Proceedings Papers

Paper presented at the 1996 SEG Annual Meeting, November 10–15, 1996
Paper Number: SEG-1996-0359
... ABSTRACT No preview is available for this paper. reservoir characterization migrated image migration velocity experiment depth migration operator receiver ray imaging acquisition geometry coherency panel traveltime reflector bulleted condition example 1 background...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 12–15, 2018
Paper Number: SPE-192965-MS
... the transport mechanism of PPG in porous media using molecular dynamic simulations. Fakher et al. (2017) predicted the propagation of PPG using a novel mathematical model. Zhou et al. (2017) proposed an improved LBM-DEM method to simulate the deformation and migration of PPG in narrow throat. As we can...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2995971
... annual meeting regularization diffractor migration imaging condition diffraction vector annual international meeting extension reservoir characterization filtration vprtm method geophysics image gather upstream oil & gas mathematical expectation reverse-time migration...
Proceedings Papers

Paper presented at the 2002 SEG Annual Meeting, October 6–11, 2002
Paper Number: SEG-2002-1121
... as migration noise, boundary or aperture effects, or mi- gration smiles. In this abstract, we relate the mathematical ex- planation of the migration artifacts by means of the Method of Stationary Phase (see, e.g., Bleistein, 1984; Sun, 1998; Bleistein et al., 2001) to simple geometrical situations. This more...
Proceedings Papers

Paper presented at the 2006 SEG Annual Meeting, October 1–6, 2006
Paper Number: SEG-2006-2514
... wave equation hybrid method phase-shift operator relative error migration equation upstream oil & gas wavefield extrapolation migration method reservoir characterization 3D prestack depth migration by hybrid method Wensheng Zhang , Guanquan Zhang, ICMSEC, LSEC, Academy of Mathematics...
Proceedings Papers

Paper presented at the 2009 SEG Annual Meeting, October 25–30, 2009
Paper Number: SEG-2009-2125
... is derived from the ratio of compressional velocity (Vp) to shear velocity (Vs). Since Vp is not sensitive to the pressure of gas reservoirs, the Generalized Poisson Ratio is defined by introducing a mathematical amplifier into the formula of calculating Poisson Ratio from velocities, following the principle...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215033
... is significantly less and it can be used for de- noising migration images. Its disadvantage is that the NNLSM reflectivity image is only an approximation to the actual reflec- tivity distribution. INTRODUCTION The biological processing of information in a cat s brain can be mathematically approximated...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215490
... , 2001 , Mathematics of multi-dimensional seismic inversion : Springer-Verlag . Fei , W. , and P. , Williamson , 2010 , On the gradient artifacts in migration velocity analysis based on differential semblance optimization : 80th Annual International Meeting, SEG , Expanded...
Proceedings Papers

Paper presented at the ISRM International Symposium, September 27–29, 1978
Paper Number: ISRM-IS-1978-018
...) and Canelles (archdam). safety coefficient geomechanical model discontinuity dam foundation plastic condition mathematical model rock mass deformability Computation fracture Upstream Oil & Gas resistance gallery coefficient earthfill dam Artificial Intelligence abutment deformation...

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