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Keywords: s-wave impedance
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Proceedings Papers
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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
Publisher: Society of Exploration Geophysicists
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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