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The AAPG/Datapages Combined Publications Database

Showing 18,835 Results. Searched 200,626 documents.

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Extended Abstract: Dynamic Datasets Using Forward Modeling to Reduce Uncertainty and Improve Recovery

Chip Corbett, Nejma Djabelkhir, Theresa Hartman, Geoff Mills, Jennie Graham, Margaret Leathard, Stephen McHugo, Horacio Trajtenberg

GCAGS Transactions

... data elements. It is very rare that a single dataset would contain all of the elements for training classes that span a full spectrum of subsurface...

2015

Abstract: When Thin Is In ย… Relative Acoustic Impedance Helps; #90171 (2013)

Satinder Chopra, John P. Castagna, and Yong Xu

Search and Discovery.com

... frequency spectrum obtained using spectral decomposition of various types. The resolution of thin-bed reflectivity inversion is far superior to the input...

2013

Abstract: When Thin Is In ย… Relative Acoustic Impedance Helps; #90171 (2013)

Satinder Chopra, John P. Castagna, and Yong Xu

Search and Discovery.com

... frequency spectrum obtained using spectral decomposition of various types. The resolution of thin-bed reflectivity inversion is far superior to the input...

2013

Chapter Eight: Horizon and Formation Attributes

Alistair R. Brown

AAPG Special Volumes

... and notionally force-fit the spectrum to yield three maxima. First dominant frequency should primarily express the properties of the wavelet. Second...

2011

Detrital zircon geochronology of quartzite clasts in the Permian Abo Formation, Sacramento Mountains, New Mexico, USA

David H. Malone, John P. Craddock, Eric A. Deck, Tenley J. Banik, Brian Hampton

Rocky Mountain Association of Geologists

... analyses, such that each curve contains the same area, and then stacks the probability curves. Figure 11. Frequency plot of detrital zircon age spectrum...

2017

Finite-difference modeling of marine vibrator sources

Khalid Almuteri, Jeffrey Shragge, Paul Sava

International Meeting for Applied Geoscience and Energy (IMAGE)

... as an attractive alternative to conventional air-guns in ocean-bottom acquisition due to their ability to generate low-frequency waves and to limit negative...

2022

Effect of near offset seismic data in shallow subsurface modeling using full-waveform inversion

Md Iftekhar Alam, Salman Abbasi

International Meeting for Applied Geoscience and Energy (IMAGE)

... (Figures 3h-j). Thus, as the data volume decreased, the frequency spectra became inconsistent (Figure 3m-o) compared to the frequency spectrum...

2024

New Fracture Diagnostic Tool for Unconventionals: High-Resolution Distributed Strain Sensing via Rayleigh Frequency Shift during Production in Hydraulic Fracture Test 2

Gustavo A. Ugueto, Magdalena Wojtaszek, Somnath Mondal, Artur Guzik, Dana Jurick, Ge Jin

Unconventional Resources Technology Conference (URTEC)

... Rayleigh scattering spectrum shifts in frequency if the temperature and/or strain of the fiber section changes, which causes the spacing and optical...

2021

Introduction to Fractals

Roy E. Plotnick

Special Publications of SEPM

... power spectrum is One difficulty with self-affine patterns imme- more-or-less fiat; i.e., the power is independent of frequency (Figure 1.21) . Since...

1995

Detrital Zircon U-Pb geochronology and provenance of the Eocene Willwood Formation, Northern Absaroka Basin, Wyoming

David H. Malone, John P. Craddock, Jessica L. Welch, Brady Z. Foreman

Rocky Mountain Association of Geologists

... spectrum. Thus these stream systems that deposited the Crandall did not share the headwaters with the streams that supplied sediment to the Absaroka basin...

2017

Deblending seismic data using multistage iterative source separation with priors A case study using streamer 3D data

Wilson Ibanez-Jacome, Jarred Hostetler, Rajiv Kumar, Wouter Gerrit Brouwer, Saeeda Hydal, Yousif Izzeldin Kamil Amin

International Meeting for Applied Geoscience and Energy (IMAGE)

.... We decided to process the frequency bands independently so that the spectrum was not excessively biased by excessive low-frequency interference...

2023

Efficient Q-RTM in anisotropic TTI media with phase and amplitude compensation

Yongzhong Wang, Faqi Liu, Carlos Calderรณn

International Meeting for Applied Geoscience and Energy (IMAGE)

... (๐œ”) ๐‘ฃ ๐‘๐ด (๐œ”) = ๐‘ฃ ๐‘ (๐œ”) (1 + (1) where the superscript โ€œAโ€ stands for an attenuation, ๐œ” is the angular frequency, ๐‘ฃ ๐‘๐ด (๐œ”) is the frequency dependent complex...

2024

Improving Depth Prediction Accuracy of Quantified Drilling Hazards

W. Scott Leaney, William H. Borland

Geological Society of Malaysia (GSM)

... spectrum (Fig. 5). Geophones Geophones, whether at the surface or downhole, have a "natural frequency" where sensitivity is greatest to particle...

1996

Modern Technology Reveals New Opportunities in the North Sea

Cyrille Reiser, Euan Anderson, Frances Matthew

GEO ExPro Magazine

... with expanded frequency bandwidth is desirable, as it enables a better understanding of deep structure at the same time as detail is preserved in the shallower...

2011

ABSTRACT: New Developments in Micro-fluorescence Srectroscopy of Petroleum Source Rocks

Ganjavar Khavari Khorasani and Johan K. Michelsen

The Society for Organic Petrology (TSOP)

... frequency oscillation in rhe spectra. hlichelsen and Khavari Khorasani ( 1 9 9 0 ) ~ used combined principal component analyses and nonlinear numerical...

1993

Abstracts: Blind L1-norm Multichannel Deconvolution for Seismic Source Function Estimation; #90173 (2015)

Jaime Melรฉndez Martรญnez

Search and Discovery.com

... wavelets and reflectivities used are described below: Wavelets: trapezoidal amplitude spectrum wavelts with corner frequencies given by f=[f1,f2,f3,f4] were...

2015

Seismic Attribute Analysis of a Mississipian Chat, Osage County, Northeast Oklahoma, #40605 (2010

Malleswar Yenugu, Miguel Angelo, Kurt J. Marfurt

Search and Discovery.com

...) Frequency spectrum of the combined wavelet. Figure 4. (a) The seismic wiggle line superimposed on impedance response along the well-1, (b) Cross...

2010

Prediction of Porosity and Fluid Saturation from Full Stack Seismic Data Using Seismic Inversion and Neural Network Analysis, #42254 (2018).

Ahmed S. Ali, Hamed El-Mowafy, Ashraf Ali Hasan, Ali Khairy

Search and Discovery.com

... the study of reservoir parameters at a higher level (Veekan and Silva, 2004). Inversion Workflows AI (Wells) Vs Frequency . Impedance . spectrum...

2018

Estimation of In-Situ Wettability using Multi-Frequency Electromagnetic Measurements

Yuteng Jin, Siddharth Misra, Dean Homan

Unconventional Resources Technology Conference (URTEC)

...Estimation of In-Situ Wettability using Multi-Frequency Electromagnetic Measurements Yuteng Jin, Siddharth Misra, Dean Homan URTeC: 2928 Estimation...

2020

DAS noise attenuation using wavelet stack

Zhou Yu, Zhaojun Liu, Ge Zhan, Peng Cheng, Bin Wang, Weihong Fei

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the high frequency information of either input. Wavelet stack is used to produce partially stacked DAS channel gathers. Significant seismic...

2022

Impact of an Integrated Seismic Data Processing Approach: A Case Study in Central Sumatra

Mars E. Semaan, Eddy Murhantoro, Maryanto, Achmad Bermawi, Budi Subianto, Hari Santoso

Indonesian Petroleum Association

... correction DMO / Pre-stack migration in the common offset domain NMO / Stack / Post-stack enhancement Frequency filtering / Scaling / Display...

1992

Abstract: Wavelet Estimation by Non-Linear Optimization of All-Pass Operators; #90211 (2015)

Somanath Misra and Mauricio Sacchi

Search and Discovery.com

... favorable regime of bandwidth to central frequency ratio. In addition, compared to the existing cumulant matching technique of wavelet estimation...

2015

Abstract: Nonlinear Seismic Wave Propagation in Heavy Oil; #90224 (2015)

Wubing Deng and Igor B. Morozov

Search and Discovery.com

... of the unaltered Crisco ( M ๏‚ป 0.2 GPa at high -1 strain). Therefore, the Figure 3. Frequency and strain-dependent nonlinear attenuation. a) Q spectrum of -1 ๏€ญ4...

2015

Abstract: Interpolation Artifacts and Bidimensional Ensemble Empirical Mode Decomposition; #90224 (2015)

Jiajun Han and Mirko van der Baan

Search and Discovery.com

... (IMFs). Each IMF has different frequency components, potentially highlighting different geologic and stratigraphic information (Magrin-Chagnolleau...

2015

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