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Seismic anisotropy

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Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3211060
... ABSTRACT A new seismic attribute, , provides a method to more practically estimate seismic anisotropy from real seismic data. We derive an expression for this quantity from analyses of amplitude variation with offset (AVO) inversion with full Zoeppritz solutions for P-wave reflection...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3427877
... Based on Monti Carlo simulation using laboratory measured rock physics data, we studied the effect of seismic anisotropy on the AVO gradient B and compared it with the gas saturation effect on AVO gradient. Our study shows that the former is usually much greater than the latter, and the seismic...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3199882
... ABSTRACT In this paper we present a practical extension of earlier work on the estimation of anisotropy parameters from isotropic techniques. We will take a closer look at the implications of working with effective elastic parameters in anisotropic (TI) seismic reflection inversion. In...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214166
...Rock physics constrained seismic anisotropy parameter inversion: A synthetic study Fuyong Yan*1, and De-Hua Han1, 1University of Houston, Texas, USA, Summary Previous studies have shown that it is very challenging to estimate the anisotropy parameters from seismic data even with a simple geological...
Proceedings Papers

Paper presented at the SPE/AAPG/SEG Unconventional Resources Technology Conference, July 22–24, 2019
Paper Number: URTEC-2019-480-MS
... objective is to apply a nonlinear AVO inversion using the exact Zoeppritz solutions instead of its linear approximation. It allows estimation of seismic anisotropy and furthermore estimates of anisotropy of geomechanical properties. We first reformulate the exact Zoeppritz equations for reflection...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2996836
...) Presentation Type: Oral fracture azimuth azimuthal sector noise reduction annual international meeting seg international exposition image data reservoir characterization orientation fracture prediction inversion result amplitude variation azimuth seismic anisotropy analysis azimuthal...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17786905
... ABSTRACT The layer-induced seismic anisotropy of sedimentary strata is frequency dependent. At the low-frequency limit, the effective anisotropic properties of the layered media are estimated by the Backus averaging model. At the high-frequency limit, the apparent anisotropic properties of the...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17587710
...How seismic anisotropy changes with scale Dawin Baden*, Pierre Henry, Ginette Saracco, Lionel Marié, and Alain Tonetto, Aix-Marseille Université, CNRS, CEREGE, IRD; Yves Guglielmi, and Seiji Nakagawa, Lawrence Berkeley National Laboratory; Gérard Massonnat, Jean-Paul Rolando, Total Exploration...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 7–10, 2016
Paper Number: SPE-183278-MS
... information anticline orientation production history Azimuthal Fourier Coefficient anisotropy seismic anisotropy analysis fracture distribution awali anticline structure bahrain fracture density Downton fracture orientation society of petroleum engineers Bahrain field was controlled by two...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13777643
... ABSTRACT Based on a large quantity of laboratory ultrasonic measurement data of sedimentary rocks and using Monte Carlo simulation and Backus averaging, the layering effects on seismic anisotropy are analyzed. The layering effects are studied for different types of rocks under different...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13777907
... anisotropy velocity measurement shale anisotropy measurement geophysics reservoir characterization upstream oil & gas seismic anisotropy ti elastic constant elastic property quality control data source 2 seg seg international exposition Byun , B. S. , 1984 , Seismic parameters...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13778090
... ABSTRACT Based on transversely isotropic (TI) layer-cake model randomly parameterized by the laboratory anisotropy measurement data, we apply the commonly used quartic non-hyperbolic moveout velocity analysis method to estimate the seismic anisotropy parameters. The methodology is tested on...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13876460
...VVAZ analysis for seismic anisotropy in the Altamont-Bluebell Field Khaled Al Dulaijan* and Gary F Margrave+ *CREWES and University of Calgary +CREWES, University of Calgary, and Devon Energy Summary The 3D seismic data was acquired within Bluebell Field, the eastern portion of Altamont-Bluebell...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition and Conference, November 1–4, 2010
Paper Number: SPE-137986-MS
.... Histogram shows azimuthal direction and intensity of anisotropy. Fig.1 Logs at well A for the target reservoirs (left). Red and blue circles on the synthetic seismogram show seismic event B and C respectively identified for following analysis in addition to event A picked at overburden level for...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-0302
... seg seg denver 2010 anisotropy upstream oil & gas study area well-seismic mistie information valuable indicator seismic anisotropy sub-salt velocity model update seismic data reservoir characterization synthetic seismogram well data wavelet well-to-seismic tie Well-seismic...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5809635
... Summary Here, we show a case study of the contribution of the seismic anisotropy in the characterization of a tight sand fractured reservoir located in the Algerian Sahara using shear wave anisotropy. Data of recorded by the sonic scanner tools are used, the tool records the fast and slow...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5844460
... how seismic velocity anisotropy in the seismic frequency band is affected by the hydraulic connectivity between fractures that are embedded in a low-permeability formation. Modeling both the background rock and the fractures as poroelastic media, we use numerical oscillatory relaxation tests to...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5872678
... symmetry. We demonstrate this integrated concept on a Gulf of Mexico basin model. Introduction Modern seismic imaging uses tilted transverse anisotropy (TTI) and tilted orthorhombic (TOR) models to properly image and position. However, building a low-symmetry anisotropic model is a complex process as...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5876826
...Multi-Component Seismic Anisotropy in a Mississippi Lime Play, North-Central Oklahoma Scott Singleton*, Shihong Chi, Lisa Sanford, ION Geophysical Corp. Paul Constance, HighMount Energy Summary A high density, full azimuth, multicomponent survey was designed, acquired and processed in the...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-0559
... Summary Anisotropy parameters provide vital information for surface and borehole seismic data processing, imaging and interpretation. The objective of this research is to introduce a reliable technique, for estimating local seismic anisotropy using both P- and SV-wave from VSP data in VTI...

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