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Keywords: equation
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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-2021-3579751
... factor attenuation applied geoscience plane property inversion reservoir characterization target processing convolution model inversion result wavelet reflection coefficient inversion seismic record seismic wavelet equation L1 norm constrained reflection coefficient inversion based...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3583209
... wavelet equation An Objective Function Optimization Method Based on Multi-frequency Wavelets for Receiver Combination in Seismic Acquisition Peng Gengxin1, Liu Fulie2, Guo Nianmin1,Wang Yu2,Xu Kaichi1 1.Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla...
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
... impedance and density results. Given this problem, we propose a novel prestack inversion by incorporating basic pursuit optimization and the modified Fatti approximation which can characterize the correlations between the elastic parameters using the information of Castagna and Gardnar empirical equation...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594961
... reservoir surveillance linear system gauge length das operator equation regularization operator expression strain rate reservoir characterization production logging applied geoscience field research station exploration geophysicist 10 transformation Least Squares DAS to geophone transform...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3595008
... equation in the time domain for the analytical wavefield. Such wavefield is separated into real and imaginary parts, and the resulting first-order matrix differential equation is integrated in time using Chebyshev polynomial expansion, usually combined with the Fourier method to compute a square-root...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3580596
... relationship linear relationship single-trace geometry repeatability multi-trace geometry repeatability extrapolation equation A solution to the demonstration of geometry repeatability Mao Hejiang, Xin Xiuyan, Quan Haiyan, He Yongqing, Xu Zhaohong, and Dong Fengshu*, BGP, CNPC Summary Theoretical...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3579895
...Pure qP-wave equation in VTI media based on approximate method of completing the square Kai Liang1*, Shangrao Sun1, Danping Cao1, Xingyao Yin1 1.School of Geosciences, China University of Petroleum (East China) Summary scheme, which introduces rotated staggered grid (RSG) The elastic wave...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3580603
... We propose a series of perturbation-based traveltime approximations from different acoustic assumptions and model parameterization. The corresponding eikonal equation from two acoustic assumptions is operated. To stabilize the perturbation series and improve the accuracy, the Shanks transform...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3579780
... tracing equations to the time-domain imaging the complex anisotropic structures. The anisotropic Gaussian beam migration. Meanwhile, we optimize the ray tracing equations based on phase velocity is employed to correlation coefficients of dynamic ray tracing equation to describe the wave propagation...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3580633
... representation boundary representation equation Full wave eld Marchenko using a generalised framework for focusing functions Leon Diekmann and Ivan Vasconcelos, Utrecht University SUMMARY We present a generalised framework for focusing functions by Figure 2: Velocity model. The red star denotes the focusing...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3580471
... well- known expression (equation (1), below) for the fluid- K 1 K 1 + 1 K fr K 1 K 1 dependence of porous rock incompressibility. This error is F S S S here shown to be responsible for a long-standing inconsistency with effective medium theory, and its where the subscripts indicate...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3581527
... interface and, thereby, the ensuing imaging and inversion results. We present a mimetic finite-difference (MFD) approach to solve the equations of anisotropic elastodynamics in a nonorthogonal coordinate system conformal to the bathymetric interface. The vertically deformed coordinate mapping transforms...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3581319
... At present, there are mainly two kinds of seismic wave prestack depth migration imaging methods: the integral method based on the high frequency approximation solution of wave equation and the finite difference numerical solution or mixed domain solution based on the differential wave equation...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3581174
... A set of seismoelectric coupling equations have been developed in 3D porous medium that has electric isotropy and elastic anisotropy. We considered only the anisotropy of orthorhombic type with poroelastic parameters. We computed the seismoelectric response in orthorhombic medium by finite...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3581797
... because there are distinct po- vertical direction is 1.0 in Figure 1a and the P-wave ampli- larization differences between SV-waves and SH-waves tude is 0.33 in Figure 1b (for VP=3.0 km/s). (Simmons and Backus, 1999). Although the radiation behavior in equation (1) and Figure 1 are functions of p...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3581188
... evanescent waves. subsurface equation 3 representation der neut applied geoscience high-velocity layer exploration geophysicist 10 wapenaar marchenko method upstream oil & gas snieder geophysics evanescent wave decomposition reservoir characterization vasconcelo marchenko imaging...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3581298
... and the Aki-Richards The forward operator of petrophysical AVO inversion is of equation. The relevant inverse problem is solved under the high nonlinearity and the relevant inverse problem is ill- Bayesian framework. In particular, spatially-varying pore conditioned. In order to achieve the stable solution...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3581975
... of the digital specimens are almost 2016). We also investigate the cause of the change in the same as each other. We proposed a new estimation permeability by evaluating pore structure using the pore equation of permeability by considering the shape size distribution (PSD) method (Roozbahani et al., 2017...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3581994
... organic-rich draupne shale caprock core sample indenter mechanical properties equation Nanoscale mechanical properties of organic-rich Draupne shale caprock, offshore Norway Md Jamilur Rahman* (UiO), Maxim Lebedev (CU), Nazmul Haque Mondol (UiO & NGI) Summary laboratory experiment, for example...
Proceedings Papers

Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582095
...Reduced Elastic Equations for Efficient Imaging in Anisotropic Media Charlie Jing Zhou, 2006; Du 2008; Duveneck, 2008), which ExxonMobil Upstream Research Company all satisfy the P-wave dispersion equation for pseudo-accoustic VTI, and thus guarantee the Summary correct P-wave kinematics (or P-wave...

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