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The AAPG/Datapages Combined Publications Database

Showing 1,541 Results. Searched 200,616 documents.

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Optimum Deconvolution for Seismic Inversion Purposes

M. Suprajitno, L. Nutt, P. Busono

Southeast Asia Petroleum Exploration Society (SEAPEX)

... is used to transform the separated functions back into the space of convolution. A commonly used characteristic system D* is the cascade of Fourier...

1988

Automatic well-log baseline correction via deep learning for rapid screening of potential CO2 storage sites

Misael M. Morales, Carlos Torres-Verdรญn, Michael Pyrcz, Murray Christie, Vladimir Rabinovich

International Meeting for Applied Geoscience and Energy (IMAGE)

... is expressed as (3) ๐‘ณ๐‘ฟ = ๐‘ฟโˆ’ ๐‘š๐‘ฟ, where ๐‘š ๐‘ฟ is the slope coefficient obtained from a leastsquares fit, โ€–๐‘ฟ โˆ’ (๐‘š ๐‘ฟ ๐‘ฟ + ๐‘)โ€– . The Fourier transform...

2024

Application of Spectral Decomposition Technique in Reservoir Exploration in the Junggar Basin of West China, #10340 (2011)

Cai Gang, Su Mingjun, Yao Qingzhou, Gong Honglin

Search and Discovery.com

... Fourier Transform (DFT). The converted amplitude spectrum can be used to detect the variability of temporal bed thickness, while the phase spectrum can...

2011

Research and application of Intelligent high resolution processing method based on ISTA-Net

Huahui Zeng, Qin Su, Sanyi Yuan, Lide Wang, Yanwu Xu, Huijie Meng, Deying Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

...on coefficient, and assuming that the parameters of neural network learning are the basis functions of Fourier transform or curvelet transform, the above formu...

2024

Integrating Surface Seismic, Microseismic, Rock Properties and Mineralogy in the Haynesville Shale.

Neil Peake, Gabino Castillo, Norbert Van de Coevering, Simon Voisey, Antoine Bouziat, Kevin Chesser, Guy Oliver, Chi Vinh Ly

Unconventional Resources Technology Conference (URTEC)

.... The azimuthal Fourier coefficients were calculated by performing a Fourier transform of azimuthally sectored seismic data over particular ranges...

2014

Abstract: Near-surface Issues in TTI Wave Equation Migration from Topography; #90171 (2013)

Chuck Ursenbach, Richard A. Bale, and Samuel H. Gray

Search and Discovery.com

... ways, such as when the inverse transform leads to a narrow, high-amplitude spike in real space, as shown in Figure 1. Using a rectangular k-filter...

2013

One-way full-waveform inversion using frequency-domain model extension

Rustam Akhmadiev, Biondo Biondi, Robert G. Clapp

International Meeting for Applied Geoscience and Energy (IMAGE)

... wave equation. Applying Fourier transform along the time axis we get: ห† ห† ห† โˆ’ฯ‰ 2 s2 (ฯ‰)p(x, ฯ‰) โˆ’ โˆ‡2 p(x, ฯ‰) = 0, (2) where convolution in time becomes...

2024

Interpolated fast and computational-efficient multidimensional singular spectrum analysis (I-FMSSA) for compressive simultaneous-source data processing

Rongzhi Lin, Yi Guo, Fernanda Carozzi, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... to estimate transform domain coef๏ฌcients that synthesize the ideal deblended data, i.e., Fourier domain thresholding algorithms (Mahdad et al., 2011...

2022

Spectral Analysis of the Middle Triassic Latemar Limestone

Linda A. Hinnov, Robert K. Goldhammer

Journal of Sedimentary Research (SEPM)

..., G.M., 1970, Time Series Analysis Forecasting and Control: Oakland, California, Holden-Day, 553 p. BRACEWELL, R.N., 1978, The Fourier Transform and Its...

1991

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: ๐ฟ = ๐‘’ โˆ’๐‘–๐œ”(๐‘ ๐‘ฅ ๐‘ฅ ๐›ผ +๐‘ ๐‘ฆ ๐‘ฆ ๐›ฝ) . Unlike the Fourier transform...

2024

Optimal Configuration and Information Content of Sets of Frequency Distributions

William E. Full , Robert Ehrlich, Stephen K. Kennedy

Journal of Sedimentary Research (SEPM)

... and Geosci., in press. BOON III, J. D., EVANS, D. A., AND HENNIGAR, H. F., 1982, Spectral information from Fourier analysis of digitized quartz grain...

1984

Source location using physics-informed neural networks with hard constraints

Xinquan Huang, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... allows for direct image extraction of the subsurface using inverse Fourier transform. Numerical tests on the Overthrust model demonstrate...

2022

Implications from Transfer Functions when Comparing Seismic Data from MEMS Accelerometers and Geophones

Michael S. Hons

Search and Discovery.com

... that capacitors sense displacement change. By taking the Fourier transform and rearranging the damped simple harmonic oscillator equation accordingly, we arrive...

Unknown

Implications from Transfer Functions when Comparing Seismic Data from MEMS Accelerometers and Geophones

Michael S. Hons

Search and Discovery.com

... that capacitors sense displacement change. By taking the Fourier transform and rearranging the damped simple harmonic oscillator equation accordingly, we arrive...

Unknown

Abstracts: Using a 1D FX Predictive Filter for 3D Seismic Data Random Noise Attenuation; #90173 (2015)

Mike Galbraith, Zhengsheng Yao, and Randy Kolesar

Search and Discovery.com

... the Fourier transform to one of the spatial coordinates, say X. Now the frequency slice is in what we may call the FKxY domain. This transform works...

2015

Multispectral Volumetric Curvature Adding Value to3D Seismic Data Interpretation, #41540 (2015).

Satinder Chopra, Kurt J. Marfurt

Search and Discovery.com

... for volume computation of multispectral estimates of curvature. They define the fractional derivative as where the operator F denotes the Fourier transform...

2015

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)

... theories have emerged one after another, such as predictive ๏ฌltering, Fourier transform, wavelet transform, curve transformation, dictionary learning, neural...

2024

Attenuating non-compressional energy on vertical motion sensors using rotational data

Hassan Masoomzadeh, Fons ten Kroode, Tim Seher, Mohammad Akbar Hosain Zuberi, Alexander Kritski, Harald Westerdahl, ร…smund Sjรธen Pedersen, Mark Thompson, Nick Bernitsas, Phil Behn, Philip Baltz

International Meeting for Applied Geoscience and Energy (IMAGE)

... geophone records using thresholding in various transform domains, such as the tau-p domain (Craft & Paffenholz, 2007; Poole et al., 2012), the wavelet...

2024

Fracture Geometry Measurements by Analyzing Multiwell Communications

Sofya Sizova, Roman Korkin

Unconventional Resources Technology Conference (URTEC)

... at different velocities. This property should be considered when studying the offset pressure. Applying the Fourier transform to the pressure at the active...

2021

Measuring seasonal velocity variations on an urban DAS array

Jihyun Yang, Jeffrey Shragge

International Meeting for Applied Geoscience and Energy (IMAGE)

...) = F โˆ’1 un (xA , ฯ‰)un (xB , ฯ‰) , where F โˆ’1 is the inverse Fourier transform operator, n is the event window index, N is the total number of event...

2022

Overburden Compensation: A Pragmatic Solution to the Frequency Dependent Amplitude Losses Associated With Laterally Variable Overburden

Swee Leng NG, Martin Bayly

Indonesian Petroleum Association

... filtering by Fourier transform: Geophysics 56, 519-527. Figure 1 - Common Mid-Point gathers preconditioned for further testing. Figure 2 - Common Mid...

2008

Time Frequency Gathers: An Optimal Spectral Decomposition Analysis Approach

Badsha Basu Roy

Indonesian Petroleum Association

... Fourier Transform), CWT (continuous wavelet transform), MEM (maximum entropy method) and MPD (matching pursuit decomposition), (Castagna and Sun, 2006...

2016

Relationship Between Test Morphology and Bathymetry in Recent Bolivina albatrossi Cushman, Northwestern Gulf of Mexico: ABSTRACT

Anthony C. Gary

AAPG Bulletin

... 1422 1422 69 9. (September) An automated video digitizer and closed-form Fourier series analysis were used in this study to quantify benthic...

1985

Abstract: Near-surface Velocity Modeling through a Computationally Efficient Implementation of 1.5D Laplace-Fourier Full Waveform Inversion; #91204 (2023)

Apostolos Kontakis, Diego Rovetta, Daniele Colombo, Ernesto Sandoval-Curiel

Search and Discovery.com

...Abstract: Near-surface Velocity Modeling through a Computationally Efficient Implementation of 1.5D Laplace-Fourier Full Waveform Inversion; #91204...

2023

Analytic directional derivative based gradient structure-tensor-based dip to detect seismic faults

Gagandeep Singh, Rahul Mahadik, William K. Mohanty, Aurobinda Routray

International Meeting for Applied Geoscience and Energy (IMAGE)

... T g1 g1 = ๏ฃฐ g1 g2 g1 g3 gH gH 1 1 ๏ฃฐ gH gH = 1 2 gH gH 1 3 ๏ฃฎ Fourier transform and slant stack are two further approaches. The structural tensor...

2022

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