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The AAPG/Datapages Combined Publications Database

Showing 18,799 Results. Searched 200,357 documents.

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Abstract: Color Correction for Gabor Deconvolution and Nonstationary Phase Rotation; #90171 (2013)

Peng Cheng and Gary F. Margrave

Search and Discovery.com

...) Amplitude spectrum 0.7 0.8 0.9 0 -20 -40 -60 0 50 100 150 Frequency (Hz) 200 250 Figure 1. (a) Nonwhite reflectivity calculated from well...

2013

Abstract: Color Correction for Gabor Deconvolution and Nonstationary Phase Rotation; #90171 (2013)

Peng Cheng and Gary F. Margrave

Search and Discovery.com

...) Amplitude spectrum 0.7 0.8 0.9 0 -20 -40 -60 0 50 100 150 Frequency (Hz) 200 250 Figure 1. (a) Nonwhite reflectivity calculated from well...

2013

Abstract: Velocity Dispersion in Field Seismic Data: Impact, Detection and Application; #90211 (2015)

Langqiu Sun

Search and Discovery.com

... data analysis method must be developed to detect and quantify it. Noticing in frequency domain, attenuation mechanisms alter the amplitude spectrum...

2015

Full phase-velocity spectrum inversion of multimode Rayleigh waves

Yanlong Niu, Yunyue Elita Li, Siau Chen Chian

International Meeting for Applied Geoscience and Energy (IMAGE)

... and frequency domain. The dispersion curves are carefully interpreted and extracted from the dispersion spectrum and used for the subsequent inversion...

2022

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

... squares minimization problem with regularization. The recovered stress-strain relaxation spectrum is applied to numerical calculation of frequency dependent...

2014

Seismic resolution enhancement with self-supervised learning

Shijun Cheng, Tariq Alkhalifah, Haoran Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... f has the form: L f (L, O) = 1 N N ˜ ˜ 2 ˜ ˜ Li − Oi · Li − Oi , (4) i=1 ˜ ˜ where the Li and Oi represent the the spatial frequency spectrum...

2024

Unsupervised frequency…space domain deep learning framework for reconstructing 5D seismic data

Gui Chen, Yang Liu, Haoran Zhang, Mi Zhang, Yuhang Sun

International Meeting for Applied Geoscience and Energy (IMAGE)

...Unsupervised frequency…space domain deep learning framework for reconstructing 5D seismic data Gui Chen, Yang Liu, Haoran Zhang, Mi Zhang, Yuhang Sun...

2024

Post-migration seismic data conditioning through merged datasets: Enhancing accuracy and insight

Pamela Blanco Dufau, Heather Bedle, Kurt Marfurt

International Meeting for Applied Geoscience and Energy (IMAGE)

... a more uniform frequency spectrum, while structure-oriented filtering removes noise while preserving structural and stratigraphic features...

2024

Abstract: Estimating Q from Hydraulic Fracture Related Seismicity; #90187 (2014)

Gisela Viegas, Adam Baig, Ted Urbancic, Eric von Lunen, Jason Hendrick, and Sean Lovric

Search and Discovery.com

..., stress drop, radiated energy, etc., are commonly calculated in the frequency domain from the displacement amplitude spectrum of P and/or S waves...

2014

Blended acquisition with independent simultaneous sourcing and dispersed source array: Deblended-data-reconstruction processing

Tomohide Ishiyama, Afra Aljaberi, Fei Hu

International Meeting for Applied Geoscience and Energy (IMAGE)

... overlap and interfere with each other across the full frequency band. Figure 3b shows the deblended data and its spectrum. The blending signal (i.e....

2024

Revealing Geologic Features in the Midland Basin Through Frequency Decomposition

Rachael Moore

Unconventional Resources Technology Conference (URTEC)

... bandwidth of the higher frequency volumes means that more of the frequency spectrum is contributing to the result. URTeC 2902077 2 A matching...

2018

Abstract: Reflectivity Color Correction in Gabor Deconvolution; #90211 (2015)

Carlos Montana and Gary Margrave

Search and Discovery.com

... frequency spectrum with depth. Introduction A generally accepted model for the seismic trace is to consider it as a convolution of the earth seismic...

2015

Enhance Seismic Quality With A Fast, Robust and Economic Solution Using Broadband Technology

Munji Syarif, Vania Iqsora, Adde Avrino, Agus Abdullah

Indonesian Petroleum Association

... is amplitude spectrum of 2004 data. Whereas 1999 dataset, although have higher dominant frequency content of 30Hz, the noise level is also high with possible...

2020

Abstract: Estimating the Spectra of Small Events for the Purpose of Evaluating Microseismic Detection Threshholds; #90174 (2014)

N. Ackerley

Search and Discovery.com

... of a seismic spectrum, much more important than the Brune corner frequency. It is important to appreciate the fact that real event spectra have significant...

2014

Enhanced Resolution Seismic and New Subsurface Insights: Miocene Section, St. Mary Parish, Louisiana

V. Egorov, C. I. Puryear, R. Tharimela, J. Jurasin

GCAGS Transactions

... data provide a limited window into the frequency spectrum of the earth’s subsurface reflectivity. Generally, the frequencies recovered after earth...

2021

An empirical method to correct nuclear magnetic resonance porosity of tight sandstone using low-field nuclear magnetic resonance data

Xinmin Ge, Yiren Fan, Jianyu Liu, Donghui Xing, Hongjun Xu, and Falong Hu

AAPG Bulletin

...-regulated nonnegative matrix factorization. The effect of TE on the transverse relaxation spectrum is investigated and corrected for different relaxation...

2023

Gemini: A fully operational broadband source for model building and imaging

Carsten Udengaard, David Brookes, Hector Flores

International Meeting for Applied Geoscience and Energy (IMAGE)

... surveys utilizing Full Waveform Inversion for high quality velocity models it will be beneficial to generate additional low frequency energy beyond...

2023

Gas Hydrates Exploration Using Continuous Wavelet Transform Based on Spectral Decomposition

Hafidz Dezulfakar, Muhazzib, Yulia Nur Fajrina

Indonesian Petroleum Association

... the same number of peak frequency cycles. Wavelet will be compressed, its peak frequency shift to a higher number and its spectrum dilates if the value...

2016

Marine Seismic Sources: Part VI: High Frequency Signals From Air-Guns

Martin Landrø, Lasse Amundsen

GEO ExPro Magazine

... spectrum due to the low-frequency energy emitted by the air-gun, while above 1 kHz the amplitude spectrum of the air-gun signal coincides with the vessel...

2011

Examples of Optical Analysis and Filtering of Seismic Record Sections: ABSTRACT

J. A. Long

AAPG Bulletin

..., the first step is an examination of the spectrum of the data. This technique lends itself well to the analysis and evaluation of the information...

1965

Application of Seismic Data to Lithology and Hydrocarbon Identification in East China

Qian Shao-Xin, Liu Wen-Lin

Circum Pacific Council Publications

... is limited by its frequency resolution, which is equal to the reciprocal of data length At. For short data length, it is preferable to do spectrum...

1989

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