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Keywords: s-wave impedance
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Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3577860
.... The real data testing verifies that this inversion method not only can obtain the blocky elastic parameters but also can stabilize the inverted S-wave impedance and density. Note: This paper was accepted into the Technical Program but was not presented at IMAGE 2021 in Denver, Colorado. reservoir...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215341
... ABSTRACT In this paper, the Fourier Coefficients (FCs) expression of azimuthally anisotropic elastic impedance (EI) equation is derived, a three-step workflow is proposed to simultaneously estimate P-wave impedance, S-wave impedance and fracture weaknesses parameters. The first step...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3209801
... established an independent equation based on the reflectivity coefficients approximated equation in terms of P- and S-wave impedance and density. In this way, the density was decoupled from P- and S-wave impedance, and density may be accurately estimated. A real data was utilized to validate the feasibility...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3214591
... squared and a multiplier times the square of the observed S-wave impedance. This multiplier is a fluid discrimination parameter that laboratory and log measurements suggest varies over a wide range. Theoretically, this parameter is simply related to the ratio of frame bulk and shear moduli and the ratio...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2997699
... , 60 – 62 , 10.1190/1.1451331 . inversion inversion method reflection coefficient s-wave impedance formula anisotropic parameter elastic impedance inversion annual meeting impedance china university upstream oil & gas seg international exposition fracture prediction...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2998271
... ABSTRACT For transversely isotropic media with a horizontal axis of symmetry (HTI), the P-wave azimuth anisotropy can be used to effectively predict subsurface fractures. In this paper, the P-wave reflection coefficient approximate formula including P-wave impedance and S-wave impedance...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17494693
... impedance reservoir characterization upstream oil & gas registration law computation time shift inversion seismic data case study stratigraphic inversion annual meeting seg seg international exposition s-wave impedance devault multi-component inversion Agullo , Y. , D...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17627557
... accurate fluid prediction. The best angle that distinguishes different fluid-bearing reservoirs could be found in 3D space based on the P-wave impedance, S-wave impedance and density body obtained by the accurate pre-stack inversion while water saturation curve was introduced. Then we fuse these three...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17670710
... ABSTRACT We derived an improved AVO equation based on a linearized approximation of PP-wave reflection coefficients. The derived equation contains only two elastic parameters, P- and S-wave impedance, and has better accuracy than the existing approximations. Numerical tests show that the new...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13884370
... Date: Wednesday, October 19, 2016 Start Time: 8:50:00 AM Location: 156 Presentation Type: ORAL water sand efficient method water saturation curve fluid discrimination fluid detection impedance oil sand multi-attribute inversion artificial intelligence s-wave impedance poisson...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13864168
... obtain P- and S-wave impedance by combining Fatti’s two terms PP wave reflection coefficient approximation and Larsen’s PS wave reflection coefficient approximation. Secondly, by using P-wave velocity we get it from P-wave impedance with Gardner’s relationship, we rewrite Aki-Richard’s three parameters...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13818873
... containing the P-wave impedance and S-wave impedance and establishes the corresponding prestack inversion method. The P-wave impedance and S-wave impedance can be directly obtained by inversion. Besides, the inversion results are more accurate than that of Fatti-EI. Numerical examples indicate that our...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13848079
... inversion method based on the Bayesian theory. Finally we can get the inverted P-wave impedance, S-wave impedance and density by adding initial model constraint. The proposed joint inversion method is tested on a 9-layer model data and real well logs. The results demonstrate that the proposed method can...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-0104
... uncertainties to estimate elastic parameters in fractured reservoirs. This paper aims to present joint P-P and P-SV wave AVO inversion method to estimate P-wave impedance, S-wave impedance, and anisotropic gradient reliably in vertically fractured reservoirs. This paper begins with the simplification...
Proceedings Papers

Paper presented at the 2011 SEG Annual Meeting, September 18–23, 2011
Paper Number: SEG-2011-2624
... impedance variation s-wave impedance Added value of distributed anamorphosis in prestack seismic inversion: a case study of the CO2 storage reservoir (Utsira sand formation) at Sleipner site Vincent Clochard, Michel Léger and Nicolas Delépine*, IFP Energies nouvelles, Rueil-Malmaison, France Summary...
Proceedings Papers

Paper presented at the 2010 SEG Annual Meeting, October 17–22, 2010
Paper Number: SEG-2010-2261
... upstream oil & gas poisson impedance impedance cross-plot guikang lin longcong jiang elastic parameter application s-wave impedance reservoir characterization donghong zhou reservoir prediction background correlation coefficient intseis solution sandstone seg seg denver 2010...
Proceedings Papers

Paper presented at the 2008 SEG Annual Meeting, November 9–14, 2008
Paper Number: SEG-2008-2041
... machine learning p-wave impedance s-wave impedance university novel prestack avo inversion reflectivity prestack avo inversion A Novel Prestack AVO Inversion and its Application Xingyao Yin*, Peijie Yang, Guangzhi Zhang, College of Geo-Resources and Information, China University of Petroleum...
Proceedings Papers

Paper presented at the 2004 SEG Annual Meeting, October 10–15, 2004
Paper Number: SEG-2004-2212
... aspects of the calculation that had to be dealt with in order to result in plausible subsurface 4D models. initial model johnston p-wave impedance impedance change elastic property jotun field time-lapse inversion s-wave impedance elastic inversion inversion angle stack jotun...
Proceedings Papers

Paper presented at the 2003 SEG Annual Meeting, October 26–31, 2003
Paper Number: SEG-2003-0346
... is between 50 and 200 m with a net pay around 25 m. These sands have an average porosity of about 12% and a permeability of about 5 to 10 m Darcy. lotena formation impedance s-wave impedance water saturation barrosa norte-el triángulo field net-pay water saturation hybrid seismic inversion...
Proceedings Papers

Paper presented at the 2003 SEG Annual Meeting, October 26–31, 2003
Paper Number: SEG-2003-1545
... orientation amplitude seismic attenuation attenuation elastic impedance fractured reservoir geophysics impedance seismic data fracture density s-wave impedance fracture orientation upstream oil & gas reservoir characterization anisotropy prestack seismic data Integrated Fractured...

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