DAS noise attenuation using wavelet stack

Zhou Yu, Zhaojun Liu, Ge Zhan, Peng Cheng, Bin Wang, Weihong Fei

International Meeting for Applied Geoscience and Energy (IMAGE)

.... For 1D wavelet filtering, W represents the stationary wavelet transform to avoid phase distortion introduced by the decimation at each scale...

Large-scale Marchenko imaging with distance-aware matrix reordering, tile low-rank compression, and mixed-precision computations

Matteo Ravasi, Yuxi Hong, Hatem Ltaief, David Keyes, David Vargas

International Meeting for Applied Geoscience and Energy (IMAGE)

... appealing in that they can decrease the rank of the corresponding matrix. More specifically, the famous Hilbert sort algorithm, also known as Hilbert space...

Abstract: Time-varying Wavelet Estimation and Deconvolution; #90171 (2013)

Mirko van der Baan

Search and Discovery.com

... x by (1) x rot (t ) = (cos φ ) x(t ) + (sin φ ) H [x(t )], with φ the phase rotation angle and H[.] the Hilbert transform. Note that the rotation...

Application of multidirectional phase attribute method in fault identification of magmatic rock overburden area

Zhiqiang Zhang, Jinghan Wang, Zhongqiao Zhang, Xijia Sun

International Meeting for Applied Geoscience and Energy (IMAGE)

... H [] represents the Hilbert transform, A(t) and φ (t) represent the envelope and instantaneous phase, Second International Meeting for Applied...

OBN up/down-going wavefields separation in dual-tree complex wavelet domain

Zhang Libin, Wang Wei, Zou Zhen, Li Yifan, Chen Zhigang, Wang Kebin

International Meeting for Applied Geoscience and Energy (IMAGE)

... matching and shear noise attenuation simultaneously by local attribute matching with phase correction in the dual-tree complex wavelet transform (DTCWT...

Abstract: Generalized Frames for Gabor Operators in Seismic Imaging; #90172 (2014)

Michael P. Lamoureux, Gary F. Margrave, Peter C. Gibson

Search and Discovery.com

... of these methods. Theory and Method The mathematical theory is built on linear operators acting on a Hilbert space: roughly speaking, the Hilbert space...

Coherence Attribute Applications on Seismic Data in Various Guises

Satinder Chopra, Kurt Marfurt

Unconventional Resources Technology Conference (URTEC)

... is followed by rotating the phase of the data by -90o, through the application of Hilbert transform. The RMS computation (squaring, averaging and taking...

Autotracking Horizons in Seismic Records, by Satinder Chopra and Kurt J. Marfurt; #41489 (2014).

Search and Discovery.com

Improved Reservoir Modeling Using Gridded Seismic Attributes: North Concho Bluff Field, West Texas

Peter Lufholm, George Watts, Larry Lofton

West Texas Geological Society

... the Hilbert Transform and summed across the main Queen pay interval. Figure 13. Instantaneous phase created from the Hilbert Transform and summed...

Stratigraphic Analysis Garden Banks Block 235, Gulf of Mexico

Edwin I. Linares, Abu K. M. Sarwar

GCAGS Transactions

... was interpreted using well log data, seismic facies, and seismic attributes. Hilbert transform attributes such as instantaneous amplitude, frequency, phase...

Stratigraphic Analysis of Seismic Data from the Garden Banks Block 235 Area, Offshore Gulf of Mexico

Edwin I. Linares, Abu K. M. Sarwar

GCAGS Transactions

.... The complex geology of this area was interpreted using well log data, seismic facies, and seismic attributes. We applied Hilbert transform attributes...

Structural subdivision of channel sand bodies based on frequency division coherence and attribute fusion

Qian Yu, Jianli Wang, Huajing Chen, Heng Zhang, Lien Bian

International Meeting for Applied Geoscience and Energy (IMAGE)

... [u ] t t u 2  H [u ]2 (1) In formula (1),  is the instantaneous phase, u is the 3D seismic data, and H[u] is the Hilbert transform of the 3D...

Coherence Attribute Applications on Seismic Data in Various Guises, #42273 (2018).

Satinder Chopra, Kurt J. Marfurt

Search and Discovery.com

... transform method. The output includes spectral magnitude, phase, and voice component volumes. ©2017 TGS-NOPEC Geophysical Company ASA. All rights reserved...

Interpreting Seismic Amplitude Volume Technique Attributes; #42051 (2017)

Luis Vernengo, Eduardo Trinchero, Maximiliano Garcia Torrejon, Ignacio Rovira

Search and Discovery.com

... by choosing a definite analysis window, and then rotates the phase of the data by negative 90 degrees using the mathematical operation of Hilbert transform...

Detection of Fluvial Systems Using Spectral Decomposition (Continuous Wavelet Transformation) and Seismic Multi-Attribute Analysis … A New Potential Stratigraphic Trap in the Carbonera Formation, Llanos Foothills, Colombia; #42281 (2018)

Essam Saeid, James Kellogg, Christopher Kendall, Ibraheem Hafiz, Zyaid Albesher

Search and Discovery.com

... trace by mean Hilbert transforms, that is used to transform a seismic trace to a complex trace. A complex seismic trace can be generated either...

Time Frequency Gathers: An Optimal Spectral Decomposition Analysis Approach

Badsha Basu Roy

Indonesian Petroleum Association

... Proceedings, 2016 T(t) is seismic trace, H(t) is Hilbert’s transform of T(t) i.e. 900 phase shift of T(t) It is represented as positive values...

Improvement of inverse scattering angle-domain common image gathers using optical flow

Ammir A. Karsou, Sérgio L. E. F. da Silva, Felipe V. Capuzzo, Felipe T. Costa, Jorge Lopez, Roger M. Moreira, Marco Cetale

International Meeting for Applied Geoscience and Energy (IMAGE)

... but requires a calculation of additional wavefields and a space Hilbert transform for each time step. In this work, we investigate the optical flow...

Comparative Analysis of Simultaneous Inversion Result with Elastic Inversion and AVO Envelope in Sumandak Field (Geophysics Paper 9)

Yeshpal Singh

Geological Society of Malaysia (GSM)

... and its quadrature (the 900 phase shifted version of the recorded signal). It is derived from Hilbert transform of near and far angle stacks...

Seismic Description of a Complex Carbonate Porosity System; Welch Field, Permian Basin, Texas

George P. Watts, Gregory D. Hinterlong, Archie R. Taylor

West Texas Geological Society

... to within one foot. Figure 10. Seismic structure map of the M1 horizon. Contour interval =20 ms. The Hilbert transform was used to compute instantaneous...

Abstract: Seismic Data Decomposition into Spectral Components Using Regularized Nonstationary Autoregression; #90187 (2014)

Sergey Fomel

Search and Discovery.com

... components. The classic Fourier transform, Radon transform (Gardner and Lu, 1991), wavelet transform (Mallat, 2009), curvelet frame (Herrmann...

Suppression of coherent and random noise using adaptive thresholding method in seismic-while-drilling

Yue Ma, Yujin Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... in Science Engineering, 8, 16–25, doi: https://doi.org/10.1109/MCSE.2006.49. Huang, N. E., and Z. Wu, 2008, A review on Hilbert-Huang transform: Method...

Abstracts: Color Correction for Gabor Deconvolution: A Test with Field Data; #90173 (2015)

Peng Cheng, Gary F. Margrave, David C. Henley

Search and Discovery.com

... is the maximum value of S G (τ , f ) , and ϕ c (τ , f ) is given by the Hilbert transform (over frequency) ϕ c (τ , f ) = H (ln RG (τ , f ) S G (τ , f...

Extraction and Interpretation of the Complex Seismic Trace

R. E. Sheriff, M. T. Taner, F. Koehler, D. Frye

Indonesian Petroleum Association

... in reflection strength, phase, frequency, polarity, etc., must also be communicated to the interpreter in a way that he can comprehend and apply them...

Seismic Attributes Analyses In Pre-Production Geothermal Reservoir Simulation

Search and Discovery.com

Predicting and Detecting Carbonate Cemented Zones Within Latrobe Group Reservoirs of the Gippsland Basin

Mark Bunch

Petroleum Exploration Society of Australia (PESA)

... attributes, Hilbert transform. INTRODUCTION A model has been developed to relate the occurrence of zones of carbonate cemented sandstone observed...