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The AAPG/Datapages Combined Publications Database

Showing 40 Results. Searched 188,614 documents.

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Derivation of Seismic Depth Sections

H. Buchholtz, W. Houba

Geological Society of Malaysia (GSM)

... are computed in the space-time domain), frequency-space migration and frequency-wave number migration. Presented at GSM Petroleum Geology Seminar...

1987

Abstract: Wave Equation Depth Migration with Image Gathers in Offset Domain; #90211 (2015)

Jianhua Pan

Search and Discovery.com

... and the mechanism of Kirchhoff migration, the approach presented here is to calculate Green’s functions in the frequency-space domain by wavefield...

2015

Spectral Analysis of the Middle Triassic Latemar Limestone

Linda A. Hinnov, Robert K. Goldhammer

Journal of Sedimentary Research (SEPM)

... estimates of Methods 2, 3, and 4. We compared the Latemar spectrum to a spectrum of N[0, 2] white noise, which is a flat line in frequency space at a level...

1991

First Seismic Survey in Indonesia For The CCS Project Using Vibroseis as a Non-Explosive Seismic Source

Takeshi Kozawa, Nobuhito Shimada, Masami Hato, Alfian Bahar, Awali Priyono, Rachmat Sule, Stevanus P. H. Silban, Toshifumi Matsuoka, Toru Takahashi, Takao Aizawa, Isamu Kuboki, Alphius D. Guntara

Indonesian Petroleum Association

..., the following de-noise modules were applied comprehensively (1st Denoise): • Trace editing and/or auto edit: Trace editing in the frequency-space...

2017

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

Swee Leng NG, Martin Bayly

Indonesian Petroleum Association

... and limitations, we use O-COMP to estimate spatial relative amplitude distortions as a function of frequency and space. These are decomposed...

2008

The Characteristics of the Magnetic Anomaly and Magnetosphere Structure in the Nansha Islands and Surrounding Areas

Zhang Yixiang

Geological Society of Malaysia (GSM)

... the conditions of sparse lines. Based on this grid value, two dimension fields transform programme in frequency space was used for data processing...

1995

Finite Difference Modeling: Part II: How to clean numeric time dispersion

Lasse Amundsen, Ørjan Pedersen, Martin Landrø

GEO ExPro Magazine

... equation 2a to the frequency f, then the differential operators of the two systems in frequency-space domain become equal: L(x, ) = (x,f...

2018

A Grain Size Spectra Map

John J. Dowling

Journal of Sedimentary Research (SEPM)

... mapping in the space-frequency-size domain along profiles of interest. Such an approach enables one to observe variations more easily than by viewing...

1977

Seismic Trace Interpolation using Adaptive Prediction Filters

Search and Discovery.com

... that linear events in the time-space domain can be efficiently modeled via PFs in the frequency-space domain. Spitz (1991) also showed that PFs computed...

2013

F-xy Cadzow Noise Suppression

Search and Discovery.com

... to automatically vary with time, frequency, and space, perhaps resulting in a filter which is safe, powerful, and easy to use. More than two spatial...

2013

Structure-and-Amplitude-Preserving Multi-Channel Deconvolution

Search and Discovery.com

... of the incoherent noise. An example of the latter framework are the well known algorithms for noise suppression in the frequency-space domain: FX filtering...

2013

Abstract: Feasibility Testing of Time-lapse Seismic Monitoring with Full Waveform Tomography; #90171 (2013)

Chad Hogan, Ken Hedlin, Gary Margrave, and Michael Lamoureux

Search and Discovery.com

... in frequency-space seismic waveform inversion: Geophsyical Journal International, 133, 341–362. Pratt, R. G., and Shipp, R. M., 1999, Seismic waveform...

2013

Abstract: A Tour of High Resolution Transforms; #90171 (2013)

Mauricio D. Sacchi

Search and Discovery.com

.... In particular, Radon transforms in time-space and in frequency-space domain are examples of transformations that can be posed via equation (1) (Hampson, 1986...

2013

Abstract: Interpolation of Aliased Seismic Data in the Curvelet Domain; #90172 (2014)

Mostafa Naghizadeh, Mauricio D. Sacchi

Search and Discovery.com

... interpolation methods using prediction filters. These methods operate in the frequency-space (f-x) domain. In both cases, low frequency data components...

2014

Abstract: A Phase Shift Plus Interpolation Extrapolation for Two-way Wave Equation Migration; #90172 (2014)

Jianhua Pan

Search and Discovery.com

...., 1987; Sandberg and Beylkin, 2009), which are in frequency-space domain and some of them needs solving linear system at each depth level, this approach...

2014

Abstracts: Full Waveform Inversion with Total Variation Regularization; #90173 (2015)

Amsalu Y. Anagaw, Mauricio D. Sacchi

Search and Discovery.com

... and full Newton methods in frequency space seismic waveform inversion. Geophysical Journal International 133 (2), 341–362. Rudin, L., S. Osher, and E...

2015

Abstracts: Interpolation of Nonstationary Seismic Records using a Fast Generalized Fourier Transform; #90173 (2015)

Mostafa Naghizadeh and Kristopher A. Innanen

Search and Discovery.com

... the fast generalized Fourier transform FGFT to identify the space-wavenumber evolution of nonstationary spatial signals at each temporal frequency...

2015

Low Frequency Shadow Zone Analysis Based on CWT Spectral Decomposition: Case Study of South Sumatra Basin

Abdul Haris, I Nengah Suabdi, Erwinsyah, Adriansyah, Abdullah Nurhasan, Ahsanul Khair, Ian A. Kainama

Indonesian Petroleum Association

.... The CWT method does not require preselecting a window length and does not have a fixed time-frequency resolution over the time-frequency space. CWT uses...

2008

Full-Waveform Inversion Application on 2D Slanted Streamer Data - A Case Study

Andreas Waluyo

Indonesian Petroleum Association

..., 1998, GaussNewton and full Newton methods in frequency space seismic waveform inversion, Geophysical Journal International, 133, 341–362. Figure 3...

2014

Abstract: Full-Waveform Inversion of Field Data in the Foothills: Results and Challenges with Long-Offset Seismic; #90172 (2014)

Andrew J. Brenders, R. Gerhard Pratt, Sylvestre Charles

Search and Discovery.com

...-wavenumber information in the model space. An accurate starting model can provide the latter. To obtain low-frequency land seismic data, acquisition with MEMS...

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

... Newton methods in frequency-space seismic waveform inversion: Geophysical Journal International, 133, 341-362. Shin, C., Jang, S., and Min, D. J., 2001...

2014

Abstract: Simultaneous Source Separation Via Robust Time Variant Radon Operators; #90187 (2014)

Amr Ibrahim and Mauricio D. Sacchi

Search and Discovery.com

... in the frequency space domain is given by [Γ]i j = eiωτi j (3) where τi j is the delay of source i firing time with respect to detector j. Therefore, the adjoint...

2014

Abstract: A Nuclear Norm Minimization Algorithm with Application to Five Dimensional (5D) Seismic Data Recovery; #90187 (2014)

N. Kreimer, A. Stanton, and M. D. Sacchi

Search and Discovery.com

... start our analysis by considering prestack seismic data in the receiver, source and frequency space. For a given monochromatic frequency ω, x and y...

2014

Abstract: Full Waveform Inversion with Phase Encoded Deconvolution Imaging Condition; #90224 (2015)

Wenyong Pan, Kris Innanen, and Gary Margrave

Search and Discovery.com

...., 1998, Gauss-newton and full newton methods in frequency-space seismic waveform inversion: Geophysical Journal International, 133, 341–362. Shin, C., Jang...

2015

Use of SEASAT-Derived Free-Air Gravity to Interpret the Crustal Structure of Southeast Asia

M. T. Angelich

Indonesian Petroleum Association

... that the actual processing of the derived free-air gravity data is done in frequency space and is related to the gradient of the geoid. The SEASAT...

1986

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