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The AAPG/Datapages Combined Publications Database

Showing 5,188 Results. Searched 200,357 documents.

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Tidal-Bundle Sequences in the Jordan Sandstone (Upper Cambrian), Southeastern Minnesota, U.S.A.: Evidence for Tides Along Inboard Shorelines of the Sauk Epicontinental Sea

Carl H. Tape,, Clinton A. Cowan, Anthony C. Runkel

Journal of Sedimentary Research (SEPM)

... revealed in a spectral analysis of the data (Fig. 9). We used a discrete Fourier transform function in a Matlab script that effectively slides...

2003

Laminae-scale rhythmicity of inclined heterolithic stratification, Lower Cretaceous McMurray Formation, NE Alberta, Canada

E. R. Timmer, M. K. Gingras, M. L. Morin, M. J. Ranger, J.-P. Zonneveld

CSPG Bulletin

... of a signal, or the inverse of frequencies, are determined by converting time-series signals from the time domain to the frequency domain. The Fourier...

2016

Accurate simulations of pure P-waves in attenuating transversely isotropic media

Qiang Mao, Jianping Huang, Xinru Mu

International Meeting for Applied Geoscience and Energy (IMAGE)

... can solve the 2 2 inverse Fourier transform of 11 kx k 11 P  by   11FFT 1   k x2 k 2 FFT  p     11 M N  (18)  11 W1  x, k m...

2023

A new high-resolution seismic wavelet definition and vibroseis sweep signal design

Zhenbo Nie, Huazhong Wang, Shen Sheng

International Meeting for Applied Geoscience and Energy (IMAGE)

... and vibroseis sweep signal design (a) a Fourier transform pair. Taking the Fourier transform of both sides of formula (2) yields: The width ratio of main lobe...

2024

Spectral hydrology: Resolution and uncertainty in multifrequency oscillatory hydraulic tomography

Jeremy R. Patterson, Michael Cardiff

International Meeting for Applied Geoscience and Energy (IMAGE)

... by Fourier coefficients. As an example, consider a confined 2D aquifer. In the frequency domain, the groundwater flow equation becomes: The use of near...

2022

An Integrated Biodegradation Parameter Incorporating Hydrocarbon and Polar/Non-hydrocarbon Fractions of Heavy Oils

Mengsha Yin, Haiping Huang, Leopoldo G. Caminero, Sandra O. Lucach, Silvia M. Chavez, Thomas B.P. Oldenburg

Unconventional Resources Technology Conference (URTEC)

... Bruker SolariX FTICR-MS equipment is used for the Fourier transform ion cyclotron resonance–mass spectrometry (FTICR–MS) analysis. An aliquot...

2020

Gabor Deconvolution: Surface-Consistent and Iterative

Search and Discovery.com

... at constant time and the usual precautions are taken to avoid the log of zero.apply the inverse Gabor transform to provide an output trace. At this time, we...

2013

Frequency-dependent reflection characteristics of single thin layer and waveform inversion

Zhengyang Kuai, Danping Cao, Chao Jin

International Meeting for Applied Geoscience and Energy (IMAGE)

... an important role. Partyka et al (1999) proposed spectral decomposition technique using Fourier transform to determine thin layer thickness. Rubino...

2023

Broadband seismic probabilistic AVO inversion for reservoir properties

Kun Li, Qingwen Zheng, Xingyao Yin, Yaming Yang

International Meeting for Applied Geoscience and Energy (IMAGE)

... and Fourier operator of the complexfrequency-domain transform, respectively. To illustrate the seismic AVO inverse problem clearly, it is assumed...

2023

Modelling pure qP-wave in attenuative VTI media using fractional viscoacoustic wave equation

Shanshan Zhang, Kun Tian, Ning Qin, Yanguang Wang, Changbo Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

..., and performing time and space inverse Fourier transform, the fixed fractional-order pure qPwave equation of velocity and attenuative-VTI medium can...

2024

Stochastic inversion based on Von Karman random medium prior model

Longdong Liu, Baoli Wang, Ying Lin, Guangzhi Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... and  . Where   w  t  is the seismic wavelet. 1 d w  t  , and the 2 dt The autocorrelation function can be gotten by doing the Fourier inverse...

2024

Risks of Microseismic Fracture Mapping Mis-interpretation: Source-Dependent Sensitivity Induced by Surface Arrays Observational Bias

Pierre-Francois Roux

Unconventional Resources Technology Conference (URTEC)

... is estimated by taking the maximum of the inverse Fourier transform of its spectral expression [Aki and Richards, 2002]: ℱ𝑀0 𝑠̇ 𝐴 = max⁡| ⁡ | 4𝜋𝜌𝑉 ...

2017

Noise Attenuation in Common Receiver Gather to Enhance S/N Ratio in Seismic Data

Dara Felisia A, Triswan Mardani Ade Surya, R.B.Fauzan Irshadibima, Firman Syaifuddin

Indonesian Petroleum Association

... Frequency filtering can improve the signal-to-noise ratio but it damages the vertical resolution, conversely the inverse filtering improves...

2017

Low-Frequency De-Ghosting Method to Enhance Basement Layer Continuity Image in Foxtrot South East Area, North West Java Sea

Ryan Bobby Andika, Hudzaifah, Deny Martian, Nurudin Mahmud, Sri Sadono

Indonesian Petroleum Association

.... 𝑈 𝐷𝐺 (𝑥, 𝑦, 𝑤, 𝑧) = 𝐹(𝜕𝑥, 𝜕𝑦, 𝑘, 𝑧)𝑈(𝑥, 𝑦, 𝑤, 𝑧) Because of, in principle, the above filter equation being the 2D inverse Fourier transform of the ghost signal...

2019

Identification and Prediction of the High Heterogeneous Channel Sand in Southern Turgay Basin; #10515 (2013)

Yueying Hong, Hongmei Wang, Wenyuan Tian, and Aling Mo

Search and Discovery.com

... from time domain into frequency domain to obtain amplitude spectrum and phase spectrum-tuning cube through short time window Discrete Fourier Transform...

2013

Seismic Migration Interpolation using Time-Shift Imaging Condition

Mark Ng

Search and Discovery.com

... depth steps unless a post-image interpolation (i.e., up-sampling) is applied to the depth output. But in this paper, inverse temporal Fourier...

Unknown

Seismic Migration Interpolation using Time-Shift Imaging Condition

Mark Ng

Search and Discovery.com

... depth steps unless a post-image interpolation (i.e., up-sampling) is applied to the depth output. But in this paper, inverse temporal Fourier...

Unknown

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