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The AAPG/Datapages Combined Publications Database

Showing 757 Results. Searched 200,357 documents.

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Abstract: 3D–3С Full-Wave Modeling in Anisotropic 2.5D Medium; #90171 (2013)

A. Kostyukevych, N. Marmalevskyi, Y. Roganov, and V. Tulchinsky

Search and Discovery.com

... the rotated staggered grid: Geophysics, 69, 583-591. Song, Z. and Williamson, F.R., 1995, Frequency – domain acoustic-wave modeling and inversion...

2013

Abstract: Estimation of Q-factor and Phase Velocity Using the Recovered Stress-strain Relaxation Spectrum; #90172 (2014)

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

Search and Discovery.com

...   x x t where  is the mass density, u ( x, t ) is the displacement,  (t ) is the relaxation function of the medium. In the frequency domain...

2014

Abstract: Estimation of Group Velocity using Slant Stack Generalized S Transform Based Method; #90174 (2014)

Roohollah Askari, Robert J. Ferguson, and Kristof DeMeersman

Search and Discovery.com

... for the estimation of the group velocity. The slant stack generalized S transform based method uses the slant stack idea in the time-frequency domain based...

2014

Abstracts: Accurate Declipping Hybrid Algorithm for Ground Penetrating Radar Data; #90173 (2015)

Akshay Gulati and R. J. Ferguson

Search and Discovery.com

... the first few iterations, sample points with high energy are restored. In each iteration, higher frequencies are made zero in the frequency domain...

2015

Abstract: Geostatistical Prestack Inversion for Sand Thickness Prediction and Porosity Estimation in Sabriyah Field, North Kuwait; #90224 (2015)

Osman Al-Khaled, Yousef Al-Zuabi, Keith Edwards, Marianna Evdokimova, and Mohammad Arafat

Search and Discovery.com

..., the difference between the seismic and synthetic data, both in the time and the amplitude-frequency domain, 4) comparison of the inverted elastic...

2015

Abstract: Simple Wavefield Modelling to Evaluate the Low Frequency Artifacts in Reverse-Time Migration; #90224 (2015)

John C. Bancroft

Search and Discovery.com

...-frequency domain z ,   P  z   z,   P  z,  e  i z v .  (3) Two initial conditions are required for a two-way solution, but only one...

2015

Abstract: Magnitude, Scaling, and Spectral Signature of Tensile Microseisms; #90224 (2015)

David W. Eaton

Search and Discovery.com

... in the frequency domain (Water and Brune, 1993) F(ω ) = 2 − 2cos(ωτ ) , (2) where τ is the time separation between the two subevents. This filtering...

2015

Abstract: Statics Preserving Sparse Radon Transform; #90224 (2015)

Nasser Kazemi

Search and Discovery.com

... the resolution of Radon transform, Sacchi and Ulrych (1995) introduced a sparse Radon algorithm in the frequency domain. They used Cauchy norm to model...

2015

Abstract: Anisotropy-Preserving 5D Interpolation by Hybrid Fourier Transform; #90224 (2015)

Juefu Wang and Shaowu Wang

Search and Discovery.com

... each trace from the time domain to the temporal frequency domain. We then perform interpolation for each frequency slice. The kernel involves a hybrid...

2015

Abstract: *Detection of Hydrocarbons from Velocity Logs using the Wavelet Coherence Analysis: A Case Study from Algerian Tight Reservoirs; #91202 (2022)

Said Gaci, Mohammed Farfour, and Saliha Amoura

Search and Discovery.com

... the variability of correlation between the series in the time-frequency domain. The Mediterranean and North African Conference and Exhibition (MEDiNA), Tunis...

2022

Abstract: Fault System Delineation Driven by New Technology in Tazhong Karsted Carbonate Reservoirs; #91204 (2023)

Yanming Tong, Xingliang Deng, Chuan Wu, Shiti Cui, Pin Yang, Chunguang Shen, Gaige Wang, Jiangyong Wu, Chenqing Tan

Search and Discovery.com

..., i.e. Radon domain signal and resolution enhancement, Time-domain amplitude balancing and Frequency-domain lowfrequency balancing. From the raw...

2023

Long Period Long Duration Seismic Events During Hydraulic Stimulation of a Shale Gas Reservoir, #40761 (2011)

Indrajit Das, Mark D. Zoback,

Search and Discovery.com

... and Reconstruction 1000 seconds Gets rid of micro-earthquakes and spikes better 0.2 seconds LPLD events in the frequency domain Frequency Amplitude...

2011

Integrated Study on Wara Prospectivity in Khashman Area, Kuwait, #50606 (2012)

Arun Kanti Dey, Bhaskar Chakrabarti, Lin Ye, Meshal Al-Wadi, Hanan Abu-Hebiel, Jalal Mohamad Dashti

Search and Discovery.com

... phase studies in frequency domain at the reservoir interval. Integration of seismic facies with lithofacies interpreted from core and log studies...

2012

Reliability of Reservoir Forecast in One of the West Siberia Fields, #20250 (2014)

M.L. Evdokimova, T.F. Sokolova, E.O. Malysheva, S.Z. Yunusova

Search and Discovery.com

... partial stack; Analysis of residuals, the difference between the seismic and synthetic data, both in the time and the amplitude-frequency domain. good...

2014

Application of Visco-Acoustic Full Waveform Inversion to Shallow-Water, Shallow-Gas Data, #41802 (2016).

Xin Cheng, Ronan Petton, Ian Anstey, Wai-Leong Lai, Denes Vigh, Gavin Menzel-Jones

Search and Discovery.com

... considerations. Let from the visco-acoustic wave equation (Equation 1), after Fourier transform to the frequency domain and some algebra manipulation, without...

2016

A Combination of Genetic Inversion and Seismic Frequency Attributes to Delineate Reservoir Targets in Offshore Northern Orange Basin, South Africa, #51398 (2017).

Chris A. Samakinde, Jan van Bever Donker, Silvia Lanes

Search and Discovery.com

... into frequency domain. IsoFrequency component attribute was equally used at varying frequency values and varying periodic cycles. In this study F=1/t , 45Hz...

2017

Localized wavefield inversion (LWI): An adaptation of multi-block ADMM for localized FWI

Hossein S. Aghamiry, Ali Gholami, Stephane Operto, Alison Malcolm

International Meeting for Applied Geoscience and Energy (IMAGE)

... and unchanged subdomain 1, but, for each frequency, it requires as many wave-equation solutions as grid points discretizing the edges of the domain...

2022

Towards understanding the impact of the evanescent elastodynamic mode coupling in Marchenko equation-based demultiple methods

Marcin Dukalski, Christian Reinicke, Kees Wapenaar

International Meeting for Applied Geoscience and Energy (IMAGE)

... and evanescent waves. Such waves are not universally time-reversed (ingredient 3) by complex conjugating the signal in the frequency domain. At large...

2022

Characterizing initial-state conductivity distribution at a CO2 injection site with airborne, surface, and borehole electromagnetic induction methods

Lucie Costard and Jeffrey G. Paine

Environmental Geosciences (DEG)

... and gas reservoir and injection zone. It included an airborne geophysical survey collecting frequency-domain EM data, time-domain surface EM...

2015

Auto-Control Model Building Using Machine Learning Regression for Extreme Response Prediction

Darrell Leong, Anand Bahuguni

Australian Petroleum Production & Exploration Association (APPEA) Journal

... taking the form of analytical approximations of the mean estimator response. For dynamic analyses in engineering, it is common for frequency domain results...

2020

A practical implementation of data-space Hessian in the time-domain formulation of source extended full-waveform inversion

Gaoshan Guo, Stephane Operto, Ali Gholami, Hossein S. Aghamiry

International Meeting for Applied Geoscience and Energy (IMAGE)

... these issues. WRI has been widely implemented in the frequency domain where extended wavefields can be reconstructed with linear algebra methods...

2022

Elastic full-waveform inversion using random space shift

Yuhui Yao, Jizhong Yang, Yuzhu Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... waveform inversion based on space-time source extension: Frequency-domain implementation, Geophysics, 83, no. 5, R449R461, doi: https://doi.org...

2022

Acoustic waveform inversion with the Lippmann-Schwinger equation constraint

Rahul Sarkar, Biondo Biondi

International Meeting for Applied Geoscience and Energy (IMAGE)

... inversion in the frequency domain in both 2D and 3D, with the Lippmann-Schwinger equation as the constraint. The Lippmann-Schwinger equation that we...

2022

The emergence and impact of scientific machine learning in geophysical exploration

Umair bin Waheed

International Meeting for Applied Geoscience and Energy (IMAGE)

... in the frequency domain for the isotropic approximation of the Earth, while Song et al. (2021) extended it to the anisotropic case. On the other hand, Moseley...

2023

Monitoring Hydraulic Fracture Flowback in the Permian Basin Using Surface-Based, Controlled-Source Electromagnetics

Drew Jones, Chester Pieprzica, Oscar Vasquez, Justin Oberle, Peter Morton, Santiago Treviño III, Mark Hickey

Unconventional Resources Technology Conference (URTEC)

..., in addition to other factors, determines the bandwidth and fluid response resolution in the frequency domain (Hickey et al., 2015). Method: Analysis We...

2019

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