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The AAPG/Datapages Combined Publications Database

Showing 756 Results. Searched 200,293 documents.

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Full-waveform inversion using velocity-encoded physics-informed neural networks

Mohammad Taufik, Xinquan Huang, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... for a scattered frequency domain wave equation before explaining how to incorporate the trained LatentPINN model to perform FWI. Latent representation...

2024

Abstract: White Noise Suppression in the Time Domain … Part I; #90174 (2014)

Patrick Butler

Search and Discovery.com

... al., 2004). However that work was done principally in the frequency domain. That has proven to be more difficult than necessary. The frequency domain...

2014

Abstract: Towards Using Harmonic NoiseŽ to Image Shallow Thin Reflectors; #90187 (2014)

Christopher B. Harrison, Gary Margrave, Michael Lamoureux, Art Siewert, Andrew Barrett, and Helen Isaac

Search and Discovery.com

... on a single sweep showing the fundamental (H1), H2, H3 and H4. Time domain H1+H2 H1 view of the decomposition (top) and frequency domain view (bottom...

2014

Abstracts: Fractional Fourier Transform in Coherent Noise Attenuation; #90173 (2015)

K. H. Miah and M. D. Sacchi

Search and Discovery.com

... and Yeh, 1998; etc.). The limitation of the frequency domain representation arises from the fact that if both the signal and noise overlaps in the same...

2015

Abstract: Time-Reversal Extrapolation for Microseismic Event Localization; #90224 (2015)

Zhenhua Li and Mirko van der Baan

Search and Discovery.com

... theorem by time-reversing the wavefield of one state, to get (2) where conjugate in frequency domain represents time reversal in time domain...

2015

Sensitivity analysis of acoustic waveform inversion to velocity anomalies in the near-surface using the Frchet derivative

Ao Cai, Colin A. Zelt

International Meeting for Applied Geoscience and Energy (IMAGE)

... the predicted and observed data. WI generally includes frequency-domain (Pratt, 1999; Ravaut et al., 2004) and time-domain (Tarantola, 1984; Mora, 1987...

2022

Uncertainty quantification for full-waveform inversion with a mini-batch gradient-based sampling method

Zeyu Zhao, Mrinal K. Sen

International Meeting for Applied Geoscience and Energy (IMAGE)

... 0.02 km in both directions. The Ricker wavelet with the peak frequency of 10 Hz is used to generate 92 shots gathers using time domain rapid expansion...

2022

Chapter 8-part 2: Spectral Decomposition

Gregory A. Partyka, Michael D. Bush, Paul G. A. Garossino, Paul R. Gutowski

AAPG Special Volumes

..., a steep-sided boxcar-shaped filter in the frequency domain transforms to a sinc waveform in the time domain. A layer/boxcar in the time domain...

2011

Abstract: Inexact Full Newton Method for Full Waveform Inversion Using Simultaneous Encoded Sources; #90187 (2014)

Amsalu Y. Anagaw and Mauricio D. Sacchi

Search and Discovery.com

... full Newton optimization method for the full waveform inversion algorithm in the frequency domain which utilizes simultaneous sources based upon...

2014

Abstract: Time-Lapse FullWaveform Inversion Application To Seismic Monitoring Of CO2 Sequestration; #90224 (2015)

Wubshet Alemie

Search and Discovery.com

... frequency domain acoustic wave equation with PML boundary conditions and discretized with second order in space finite difference. The resulting linear...

2015

Exploiting a Priori Model Reduction Methods to Accelerate Seismic Simulations, #42038 (2017).

David Modesto, Josep De La Puente

Search and Discovery.com

... required particular solution in a real-time framework. A simple 2D problem in frequency domain is used to exemplify the potential of this methodology...

2017

The Developing Role of Analysis in the Design of Floating Production Systems

D. B. Melver, D. Cash

Indonesian Petroleum Association

.... Krolikowski, L.P. and Gay, T.A., 1980, An improved linearization technique for frequency domain riser analysis: Offshore Technology Conference, OTC...

1985

Analysis of Electromagnetic Depth Sounding Responses Over a Layered Earth: Investigating Oil & Gas Seeps in the Petroleum Provinces

Shastri L. Nimmagadda, Andrew Ochan

Petroleum Exploration Society of Australia (PESA)

... theoretical expressions. Theoretical expressions for frequency-domain soundings written for layered earth models are suitably transformed for evaluation...

2016

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

... transformation for evaluation of hydrocarbon reservoirs, and (5) use multi-attribute analysis on the frequency cubes (frequency domain) to enhance stratigraphic...

2018

Some Qualitative Analyses of the Ground Magnetic Survey in the Kedah Peak Rest House Area, Kedah

B. K. Lim

Geological Society of Malaysia (GSM)

... measured in field. Fig. 3). QUALITATIVE ANALYSES Some qualitative analyses of the magnetic data were carried out in the frequency domain. Figs. 5a...

1980

Thin Layer Reservoir Characterization on Basal Sand, Aryani Field, Asri Basin

Zha Chaoyang, Shen Weifeng, Susandhi Ridwan, Jendra Alfredy, Widya Andine, Heri Gunawan

Indonesian Petroleum Association

... in calculating the attribute volumes and scans the whole spectrum of seismic data in the frequency domain. The resulting images play a broad role...

2011

Robust seismic data denoising based on factor group-sparse regularization

Mi Zhang, Yang Liuy, Jingming Liy, Gui Cheny

International Meeting for Applied Geoscience and Energy (IMAGE)

... approximation of the Hankelized seismic data in the frequency domain. We evaluate the denoising robustness of the proposed method on synthetic data...

2024

Spectral Decomposition: Extending the Limits of Seismic Resolution for Reservoir Delineation

Sunu H. Praptono, Bambang Murti, Dylan Mair

Indonesian Petroleum Association

... in the data. Methodology The spectral decomposition transforms the seismic data into the frequency domain via a DFT (Discrete Fourier Transform) or via a MEM...

2003

Quantifying the Influence of Rock Fabric, Composition, and Electrical Double Layer on the Broadband Dielectric Dispersion of Organic-rich Mudrocks

Artur Posenato Garcia, Zoya Heidari

Unconventional Resources Technology Conference (URTEC)

... layers. We solve the Kirchhoff’s current law in the frequency domain through a finite volume method. We assign a dielectric permittivity to each...

2018

Abstract: Event-directed Spectrum Extrapolation for Upsampling Seismic Traces; #90172 (2014)

Zhengshong Yao, Elvis Floreani

Search and Discovery.com

... data set. Therefore, in frequency domain, a portion of the low un-aliased frequency band can be used for the dip parameters’ estimation. Because...

2014

Abstract: Re-establishment of Gradient in Frequency-domain Elastic Waveform Inversion; #90174 (2014)

Ju-Won Oh, Dong-Joo Min, and Felix J. Herrmann

Search and Discovery.com

...Abstract: Re-establishment of Gradient in Frequency-domain Elastic Waveform Inversion; #90174 (2014) Ju-Won Oh, Dong-Joo Min, and Felix J. Herrmann...

2014

Abstracts: Evidence of Shallow Gas in the Queen Charlotte Basin from Waveform Tomography of Seismic Reflection Data; #90173 (2015)

Eric M. Takam Takougang and Andrew J. Calvert

Search and Discovery.com

... shallow gas in the Queen Charlotte Basin. Waveform tomography We used the 2-D visco-acoustic waveform tomography approach in the frequency domain...

2015

Elastic full-waveform inversion using OBN data acquisition

Denes Vigh, James Xu, Xin Cheng, Bing Bai

International Meeting for Applied Geoscience and Energy (IMAGE)

... be implemented in time domain or frequency-domain (Brossier 2010) while Castellanos et al. (2011) suggested a hybrid method using time-domain forward modeling...

2022

ADMM-based full-waveform inversion of ground-penetrating radar data

A. Jalali, H. S. Aghamiry, A. Gholami

International Meeting for Applied Geoscience and Energy (IMAGE)

... decrease the computational burden of time-domain FWI (by using a limited number of frequency components), frequency-domain FWI was implemented on GPR data...

2022

Assessment on the Serviceability of Monopod Platforms in Java Sea Due to Wave Excitation

Gde Pradnyana

Southeast Asia Petroleum Exploration Society (SEAPEX)

... the study of fluid-structure interaction is found to be of vital importance. In theory, apart from the responses in the wave frequency domain...

1996

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