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The AAPG/Datapages Combined Publications Database
Showing 5,187 Results. Searched 200,293 documents.
Abstracts: Fractional Fourier Transform in Coherent Noise Attenuation; #90173 (2015)
K. H. Miah and M. D. Sacchi
Search and Discovery.com
...Abstracts: Fractional Fourier Transform in Coherent Noise Attenuation; #90173 (2015) K. H. Miah and M. D. Sacchi AAPG Search and Discovery Article...
2015
Abstracts: Interpolation of Nonstationary Seismic Records using a Fast Generalized Fourier Transform; #90173 (2015)
Mostafa Naghizadeh and Kristopher A. Innanen
Search and Discovery.com
.... The output is illustrated in Figure 1c. Each individual inverse Fourier transform is represented by a particular symbol in Figure 1c (square...
2015
Time-Domain High-Resolution Radon Transform (Geophysics Paper 4)
Michel Schonewille, Peter Aaron, Carl Notfors
Geological Society of Malaysia (GSM)
... shows the result after the inverse Fourier transform where the vertical axis is now time and the horizontal curvature. The data in the time-curvature...
2008
Abstract: A Tour of High Resolution Transforms; #90171 (2013)
Mauricio D. Sacchi
Search and Discovery.com
... the inverse Fourier transform, and m the vector of unknown Fourier coefficients needed to fit the data (Sacchi and Ulrych, 1996). It is interested...
2013
Abstract: Properties of Gabor Operators for Seismic Imaging; #90171 (2013)
Michael P. Lamoureux and Gary F. Margrave
Search and Discovery.com
...), wm is a window function for some index m, F is the Fourier transform operator, and ω is the frequency variable. An inverse to the Gabor transform...
2013
Enhancing reservoir simulation workflows by coupling a GPU-accelerated full-physics simulator with a Fourier neural operator-based surrogate model
Karthik Mukundakrishnan, Klaus Wiegand, Vidyasagar Ananthan, Daniel Kahn, Dmitriy Tischekin, Marcos Kajita, Clement Etienam
International Meeting for Applied Geoscience and Energy (IMAGE)
...es, followed by an inverse Fourier transform ℱ −1 . The network activation 𝜎 is done in the soltution (physical) space. P and Q are the lifting and projecti...
2024
Abstract: Anisotropy-Preserving 5D Interpolation by Hybrid Fourier Transform; #90224 (2015)
Juefu Wang and Shaowu Wang
Search and Discovery.com
...Abstract: Anisotropy-Preserving 5D Interpolation by Hybrid Fourier Transform; #90224 (2015) Juefu Wang and Shaowu Wang Datapages/Search and Discovery...
2015
Abstract: Tau-P Seismic Data Processing: Fast Slant Stack Using the Hartley Transform
Leong Lap Sau, Ng Tong San
Geological Society of Malaysia (GSM)
... be reconstructed by an inverse transform after windowing in the T-P plane. Cylindrical slant stack procedures permit a plane-wave decomposition...
1991
Abstract: Multiple and Noise Attenuation with Tau-P Seismic Data Processing
Leong Lap Sau, Ng Tong San
Geological Society of Malaysia (GSM)
... transfrom from the 2-D Fourier transform. Compared to conventional processing in the (x, t) plane, the T-p domain has several advantages. This study...
1990
Abstract: Variable-factor S-transform for Time-frequency Decomposition, Deconvolution, and Noise Attenuation; #90172 (2014)
Todor I. Todorov, Gary F. Margrave
Search and Discovery.com
... decomposition, which improves the resolution of the Gabor transform. The variable-factor S-transform One drawback of the Fourier transform...
2014
Abstracts: Application of Fractional Fourier Transform in Cepstrum Analysis; #90173 (2015)
K. H. Miah, R. H. Herrera, M. van der Baan, and M. D. Sacchi
Search and Discovery.com
... deconvolution using cepstrum analysis has been an effective method for wavelet estimation for decades. In general, the inverse of the Fourier transform...
2015
Abstract: Fourier Domain Regularization 5D and More; #90174 (2014)
V. Khatchatrian
Search and Discovery.com
.... After inverse wave number Fourier transform, the resulting grid of traces is first reduced to only the original trace positions. Those “original...
2014
Residual noise attenuation of poststack seismic data using t-p-x decomposition
Sujith Swaminadhan, Shuvajit Bhattacharya, Sergey Fomel
International Meeting for Applied Geoscience and Energy (IMAGE)
... as the norm. An inverse Fourier transform along the time dimension gives the data in the t-p-x domain, where the events in the original t-x domain...
2024
Fast viscoacoustic forward modeling method based on U-net Fourier neural operator
Wenbin Tian, Yang Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... ， which are in the wavenumber domains, separately represent Fourier transform ， linear transform and inverse Fourier transform; W stands for local...
2023
Comparison of EMD and S-Transform Spectral Decomposition for Characterizing Hydrocarbon Reservoir: Case Study of East Java Basin
Abdul Haris, A. M. Ustad, Didik Ardiyanto, Gadang G. Wihardy, Budiyono, Tri Bowo, Murti Widyawan
Indonesian Petroleum Association
..., a problem of scale frequency in the CWT method is resolved through the inverse Fourier transform of the CWT. This method was later named Time Frequency...
2011
Abstract: Five Dimensional Seismic Data Interpolation; #90171 (2013)
Daniel Trad
Search and Discovery.com
... this constraint requires a multidimensional Fourier Transform Fnd. To solve for the unknown data, a cost function is defined and minimized using standard...
2013
Application of Inverse-Q Filter and Deconvolution to Improve Seismic Data Quality in the Deep Section
Deddy F. Djanawir, Frans Langitan
Indonesian Petroleum Association
... Report, p. 26. Hargreaves, N. D., Calvert, A. J., 1991. Inverse Q Filtering by Fourier Transform, Geophysics, v. 56, p. 519-527. Lindseth, R. O...
2004
Finite Difference Modeling: Part II: How to clean numeric time dispersion
Lasse Amundsen, Ørjan Pedersen, Martin Landrø
GEO ExPro Magazine
... wavefield at frequency . Finally, an inverse Fourier transform gives the temporally dispersionfree wavefield in time. Digital Filtering Mittet (2018...
2018
Application of Robust Noise Reduction on a Land 3D Seismic Data
Agus Abdullah, Jesse Shaw
Indonesian Petroleum Association
... consists of three steps: (1) Apply the 2D Fast Fourier Transform (FFT), (2) Multiply with frequency windows and (3) Apply 2D inverse FFT for each...
2012
Multi-Step Auto-Regressive Reconstruction of Nonuniformly Sampled, Aliased Seismic Records; #41563 (2015)
M. Naghizadeh, M. D. Sacchi
Search and Discovery.com
... coefficients of the irregularly sampled data are retrieved by inverting the inverse Fourier operator with band limiting (Duijndam et al., 1999...
2015
Seismic Enhancement Resolution in Penobscot Field With Short-Time Fourier Transform Half Cepstrum Method
Taufiq Brilliant Askari, Intan Andriani Putri
Indonesian Petroleum Association
... complex. The final step is to reconstruct the signal back into the time domain. The inverse Fourier transform is performed on the modified STFT matrix...
2022
ABSTRACT: Study on FTIR of high-organic-sulfur coal and the structure of sulfur-containing compounds of its extracts
Cong Chen, Yuegang Tang, Xiaolong Li, Yewei Sun
The Society for Organic Petrology (TSOP)
... and their extracts were studied using Fourier Transform Infrared Spectroscopy (FTIR) and Gas Chromatography-mass Spectrometer (GC-MS) to explore the evolution...
2018
Abstract: Stabilizing Seismic Absorption Compensation; #90171 (2013)
Changjun Zhang
Search and Discovery.com
... resolution discrete Fourier transform: IEEE Transactions on Signal Processing, 46, 31–38. Tarantola, A., 1987, Inverse problem theory. Methods for data...
2013
Migration Amplitude Recovery using Curvelets
Peyman P. Moghaddam
Search and Discovery.com
... the action of Fourier integral operators. They stated that under some condition a curvelet maps to another curvelet under the action of Fourier Integral...
Unknown
Migration Amplitude Recovery using Curvelets
Peyman P. Moghaddam
Search and Discovery.com
... the action of Fourier integral operators. They stated that under some condition a curvelet maps to another curvelet under the action of Fourier Integral...
Unknown