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The AAPG/Datapages Combined Publications Database

Showing 1,735 Results. Searched 200,293 documents.

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VI. Qualitative Stratigraphic Correlations

Norman S. Neidell

AAPG Special Volumes

... figures compare both wavelets A and B for the seismic response to the synthetic seismogram derived from the logs using the same wavelets. The synthetic...

1979

Application of high-resolution reflection seismology to eastern Kansas cyclothems

Ralph W. Knapp

Kansas Geological Society

... are zero-phase wavelets and have a symmetric distribution of energy which converges toward zero on both sides of the peak as time increases. Zero...

1989

IV. The Role of Seismic Wavelets and Wavelet Processing

Norman S. Neidell

AAPG Special Volumes

...IV. The Role of Seismic Wavelets and Wavelet Processing Norman S. Neidell 1979 40 60 CN 13: Stratigraphic Modeling and Interpretation: Geophysical...

1979

Abstract: Time-varying Wavelet Estimation and Deconvolution; #90171 (2013)

Mirko van der Baan

Search and Discovery.com

... for enhanced robustness, while (3) ensuring that the amplitude at the Nyquist frequency remains zero. This procedure leads to a symmetric, zero-phase wavelet...

2013

Abstract: Elastic Full Waveform Inversion For Land Walkaway VSP Data; #90224 (2015)

Olga Podgornova, Scott Leaney, Marwan Charara, and Eric von Lunen

Search and Discovery.com

... and, as a consequence, the drastic variations of the downgoing wavelets for different source positions. Careful treatment of the source wavelet is crucial for FWI...

2015

Seismic signal considerations for fast reservoir characterization

Folkert Hindriks

International Meeting for Applied Geoscience and Energy (IMAGE)

... slope of Figure 1: Seismic representation of a simple tuning wedge, a) shows a symmetric wedge model, b) shows a quadrature representation, and c...

2024

AVA attribute estimation from misaligned seismic gathers using U-Net

Ammar Ghanim, Ricard Durall, Norman Ettrich

International Meeting for Applied Geoscience and Energy (IMAGE)

...ath to capture context and a symmetric expanding path for precise localization. Skip connections between corresponding layers of the contracting and expand...

2024

Stratigraphic Modeling and Interpretation--Geophysical Principles and Techniques: Section 3. Stratigraphic Models from Seismic Data

Norman S. Neidell, Elio Poggiagliolmi

AAPG Special Volumes

... wavelets by thin layers and layered boundaries: Geophys. Prosp. (Netherlands), v. 17, p. 1-27. Nath, A. K., 1975, Reflection amplitude, modeling can help...

1977

Abstract: Application of 2D Crosscorrelation and Radon Transform for Analysis of Double Couple Microseismic Source; #90187 (2014)

Neda Boroumand and Hassan Khaniani

Search and Discovery.com

...) first motion behavior for each U x and U z displacement component; the solid blue wavelets indicate the polarity in the U x direction and the red...

2014

V. Contributions of GeoSeismic Modeling

Norman S. Neidell

AAPG Special Volumes

.... A wavelet processed section using a symmetric simple waveform yields a more readily interpretable section. In this case, the sand is sufficiently thick...

1979

Abstract: Generalized Frames for Gabor Operators in Seismic Imaging; #90172 (2014)

Michael P. Lamoureux, Gary F. Margrave, Peter C. Gibson

Search and Discovery.com

... algorithm stability. It is also useful to consider non-symmetric partition schemes, where the analysis operators may be different from synthesis...

2014

Deterministic and Statistical Wavelet Processing

Lee Lu

Southeast Asia Petroleum Exploration Society (SEAPEX)

... filter (Robinson, 1967) to shape the wavelet to a desired form. The usual derived wavelet shape in such cases being a zero-phase (symmetric) wavelet...

1980

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

Somanath Misra and Mauricio Sacchi

Search and Discovery.com

... the third order cumulants, the fourth order cumulants do not vanish when the reflectivity series is symmetric (Walden and Hosken, 1986). Tugnait (1987...

2015

Modern Marine 3D Seismic Acquisition - Technical Considerations

Chris Walker

Petroleum Exploration Society of Australia (PESA)

.../azimuth NMO.) The computed arrivals for each crossline CMP bin are 3D NMO CMPBIN β€’ corrected, muted and stacked conventionally. The wavelets...

1997

Microseismic imaging with three-component borehole sensors

Jakob B. U. Haldorsen

International Meeting for Applied Geoscience and Energy (IMAGE)

..., this projection is rotationally symmetric around the array, and estimating the wavefield components by a 4D Fourier transform, essentially amounts to aligning...

2022

The generation of equivalent sources by 3D skeletonization of the migration density field

James Brewster

International Meeting for Applied Geoscience and Energy (IMAGE)

... symmetric source centered on its location. To give a quantitative example. If a 50 m sided voxel cell has a density contrast of 1000 gm/cc it can...

2022

Geologic Considerations for Stratigraphic Modeling and Interpretation: Section 3. Stratigraphic Models from Seismic Data

L. D. Meckel Jr. , A. K. Nath

AAPG Special Volumes

..., are symmetric zero-phase wavelets similar to what might be obtained with wavelet processed data (Nath and Patch, 1977). The other model is a more...

1977

Asymmetric apertures for 3D SRME: Practical aspects and opportunities

Zhimei Yan, Massimiliano Vassallo, Scott Slaton

International Meeting for Applied Geoscience and Energy (IMAGE)

... multiple models. In all previous work, the aperture area is symmetric with respect to the midpoint of the target trace. In this work, we demonstrate...

2022

Seismic Models of a Shelf-margin Depositional Sequence: Upper San Andres Formation, Last Chance Canyon, New Mexico

Jan Stafleu , Mark D. Sonnenfeld

Journal of Sedimentary Research (SEPM)

..., "parasequences"), to less frequently documented symmetric transgressive and regressive cycles in slope settings, to asymmetric transgressive hemicycles...

1994

Abstract: High Resolution 3D Seismic Imaging in Practice β€” Jasmine Oil Field, Thailand

Charles Ramsden

Southeast Asia Petroleum Exploration Society (SEAPEX)

... survey over the Jasmine Oil Field, offshore Thailand demonstrates that a pursuit of 2D symmetric sampling principles, complemented by high-density...

2005

Hydraulic Fracture Characterization Using Continuous Wavelet Transform for Treating Pressure, Calibrated with Fiber Optics Data

Mohamed A. Gabry, Amr Ramadan, Mohamed Y. Soliman

Unconventional Resources Technology Conference (URTEC)

..., interactions with high leak-off zones, and fracture height growth. The CWT is implemented as a mathematical convolution process, using waveletsβ€”short...

2025

Recommendations From Error Analysis of Single Well Microseismic Data With Full-Wavefield Moment Tensor Inversion: A Case Study

Juan M. Lorenzo, Trudy L. Watkins, Arash Dahi Taleghani

Unconventional Resources Technology Conference (URTEC)

...: 𝑀𝑀 π‘₯π‘₯π‘₯π‘₯ 𝑀𝑀 π‘₯π‘₯π‘₯π‘₯ 𝑀𝑀 π‘₯π‘₯π‘₯π‘₯ 𝑀𝑀 𝑦𝑦𝑦𝑦 𝑀𝑀 𝑦𝑦𝑦𝑦 𝑀𝑀 𝑦𝑦𝑦𝑦 οΏ½ (2) 𝑀𝑀 = οΏ½ 𝑀𝑀 𝑧𝑧𝑧𝑧 𝑀𝑀 𝑧𝑧𝑧𝑧 𝑀𝑀 𝑧𝑧𝑧𝑧 and is symmetric (Mxy = Myx, Mxz = Mzx...

2017

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