Application of Wave Equation Tomography in Frontier Areas

Tien-when Lo, Guy W. Purnell

Indonesian Petroleum Association

...., 1985, Imaging of discontinuities in the inverse scattering problem by inversion of a causal generalized Radon transform: J. Math. Phys., 26, 99-108...

Structure-and-Amplitude-Preserving Multi-Channel Deconvolution

Search and Discovery.com

... via the inverse Fourier transform. We minimize the above cost function by the Conjugate Gradient (CG) algorithm (Hestenes and Steifel, 1952...

Abstract: Surface-consistent Matching Filter for Time-lapse Processing; #90174 (2014)

Mahdi H. Almutlaq and Gary F. Margrave

Search and Discovery.com

...-hand-side contains its surface consistent components and the "hat" denotes the Fourier transform. However, computing the ratio of two spectra directly...

Operator chains and seismic data decomposition

Sergey Fomel

International Meeting for Applied Geoscience and Energy (IMAGE)

...) and W f = diag(w f ) are diagonal weighting matrices in the original and frequency domain, respectively, and F represents the Fourier transform...

Implications of 3-D Domain Transformation for Structural and Stratigraphic Interpretation, #40765 (2011)

Geoffrey A. Dorn

Search and Discovery.com

... Stratal Slice 309 Applications – Structural Interpretation Q/C    Inverse transform stratal slices to create two horizons Merge two horizons...

Abstract: Short-time Wavelet Estimation in the Homomorphic Domain; #90174 (2014)

Roberto H. Herrera and Mirko van der Baan

Search and Discovery.com

... by an inverse Fourier transform. In addition, no assumption regarding the phase of the wavelet is made, nor is the reflectivity assumed white. Despite its...

Abstracts: Padé Approximation for Analyzing Multiple Reflections; #90173 (2015)

Dali Zhang, Michael P. Lamoureux, and Gary F. Margrave

Search and Discovery.com

... to transform to the Fourier (or other) domain. We set up the Padé approximation problem using the seismic data directly, with some choice on the rational...

ABSTRACT: Comprehensive Study of Frequency Response in Carbonate Rocks and Its Leading Factors, by Alhammadi, Miaad K.; Vega, Sandra; Jouini, Mohamed S.; Mokhtar, El Amin; #90141 (2012)

Search and Discovery.com

When the Syn-Depositional Climatic Variations Influence My Source Rock Properties – The Case Study of the Vaca Muerta

Search and Discovery.com

Abstract: Rank-Reduction-Based Trace Interpolation; #90172 (2014)

Stewart Trickett, Lynn Burroughs, Andrew Milton, Larry Walton, Rob Dack

Search and Discovery.com

... Interpolation (Liu, 2004; Liu and Sacchi, 2004; Trad 2009) POCS Projection Onto Convex Sets (Abma and Kabir, 2006) ALFT Anti-Leakage Fourier Transform (Xu...

Poisson binomial-based random undersampling scheme for near-surface compressive sensing

Sayan Mukherjee, Yunyue Elita

International Meeting for Applied Geoscience and Energy (IMAGE)

... reconstruction. Fourier transform (Abma and Kabir, 2006; Zwartjes and Sacchi, 2007), Radon transform (Trad et al., 2003), curvelet transform (Cand...

Abstract: Efficency and Accuracy Enhancement for One-way Wave Equation Migration Through Improved Mapping Function in the Time-shift Imaging Condition; #90171 (2013)

Mark Ng

Search and Discovery.com

...(x,z1,ω) along all frequencies ω in order to estimate an image at every depth step), I (Ng, 2007) solve the image i(x,z) via a full inverse Fourier...

Increasing The Resolution of Seismic Imaging With Spectral Blueing, Spectral Decomposition RGB And HSV Blending to Delineate The Fluvial Facies on Fluvio Deltaic Environment

Aji Darma Maulana, Nine Safira, Ongki Ari Prayoga, Egie Wijaksono, Alit Ascaria

Indonesian Petroleum Association

... the spectrum is obtained, the Inverse Fast Fourier Transform process is carried out. From this process, the seismic cube is obtained from...

Velocity continuation with Fourier neural operators for accelerated uncertainty quantification

Ali Siahkoohi, Mathias Louboutin, Felix J. Herrmann

International Meeting for Applied Geoscience and Energy (IMAGE)

... of their input, followed by a learned pointwise multiplication and an inverse Fourier transform. These layers act as long-kernel convolutional layer...

Seismic Estimation of Point-Bar Sands Using Simple Modeling Procedures

Robert Dennison

Indonesian Petroleum Association

... the reciprocal i.e. i/f, of every frequency point. Once G(w) had been computed an Inverse Fourier Transform converts the wavelet spectrum back into the time domain...

Hybrid 3D Marine Towed-Streamers and Ocean-Bottom Nodes Survey - Challenges and Solutions for Seismic Data Processing and Imaging

Wai Leng Cheah, Wong Li Ming Joyce, Evonne Hooi Rong Yu, Artem Sazykin, Gavin Menzel-Jones

Indonesian Petroleum Association

... and this component is added to the estimated spectrum. Additionally, an inverse Fourier transform of the selected Fourier component is computed and, finally...

3D Radon transformation with axis dependent curvature

Faruq Akbar, Warren Ho, Sebastian Holland, Rodrigo Fuck

International Meeting for Applied Geoscience and Energy (IMAGE)

... for derivation purpose. The transformation operator L is then written as: 𝐿 = 𝑒 −𝑖𝜔(𝑝 𝑥 𝑥 𝛼 +𝑝 𝑦 𝑦 𝛽) . Unlike the Fourier transform...

Innovations in Borehole Microresistivity Image Data Analysis, #41488 (2014).

Peter A. Elkington, Said Assous, James A. Whetton, David Hu

Search and Discovery.com

... Component Analysis (MCA) MCA – Conceptual Overview (1 of 2) A 1 1 0.9 Fourier Transform 0 Analysis -0.5 -1 0.8 0.7 Magnitude 0.5 B 0.6 0.5...

The effects of marine currents on seismic data

Gary Hampson

International Meeting for Applied Geoscience and Energy (IMAGE)

... (Bracewell, 1986). Using Claerebout’s (1985) Fourier kernel, this says that the equivalent Fourier domain Galilean transform is      1 u     (3...

Upscaling acoustic wave equation using renormalization group theory

Ajay Malkoti, Shravan M. Hanasoge, Rene Edouard Plessix

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the Gaussian curve. Finally, the values on the coarse grid are obtained with the inverse Fourier transform. Renormalization group theory (URG...

Multipole borehole acoustics in the presence of an constraints elastic tool

Tim Geerits, Stefan Schimschal, Anna Swiatek

International Meeting for Applied Geoscience and Energy (IMAGE)

... transform the borehole fluid wavefield back to the  r ',  ', kz , s  domain using the inverse Fourier transformation, i.e., back from m...

Abstract: Kirchhoff Imaging with Adaptive Greens Functions for Compensation for Dispersion, Attenuation, and Velocity Imprecision; #90187 (2014)

Andrew V. Barrett

Search and Discovery.com

... spectrum. This is accomplished by taking the Fourier transform of Wsrx, scaling each complex Fourier component by the inverse of its complex amplitude...

Seismic noise attenuation via learned and analytical basis functions

Yi Guo, Rongzhi Lin, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... be any conventional transform, like a local Fourier basis, wavelets, or curvelets. Because the global basis is trained from the filtered data, it cannot...

A Semi-Analytical Poroelastic Solution of Induced Pressure-Stress Changes and Its Applications to Depletion Delineation of Transversely Isotropic Shale Reservoirs

Shihao Wang, Yuzhe Cai, Bin Wang, Yunhui Tan, Kainan Wang, Jiehao Wang, Xinghui Liu, Yuguang Chen

Unconventional Resources Technology Conference (URTEC)

...n. By solving the ë û linear system as X = A-1 × R to get the projected displacement vector in the Fourier domain. We then apply inverse Fourier transfor...

Regularization by robust denoising for iterative simultaneous source separation

Breno Bahia, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... counterparts of the high-resolution Radon transform (Lin and Sacchi, 2020), singular spectrum analysis (Lin et al., 2021), and Fourier thresholding (Bahia et al...