Abstracts: True-Amplitude PS Prestack Time Migration via 5D Interpolation; #90173 (2015)

Peter W. Cary, Albert Zhang

Search and Discovery.com

... and anisotropy parameterization, anti-aliasing, reflection amplitude preservation, random noise attenuation and 5D interpolation prior to converted wave...

Appendix A: Considerations for Optimum 3-D Survey Design, Acquisition and Processing

R. Malcolm Lansley

AAPG Special Volumes

... and receiver arrays to attenuate both coherent source-generated noise and random noise can be really problematical. This is because the arrays also attenuate...

Improved Imaging of the Darby Thrust Fault using Multi-Component Seismic Receivers

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Abstract: Violet Grove Time-Lapse Data Revisited: A Surface-Consistent Matching Filters Application; #90187 (2014)

Mahdi H. Almutlaq and Gary F. Margrave

Search and Discovery.com

.... After applying the four term surface-consistent matching filters, the difference reduced considerably. Because of the low fold and high random noise...

Abstract: Analysis of the Seismic Coherence Attribute with Respect to Subsurface Fault Geometry, by A. Mironova, J. Thompson, B. Krantz, J. Sinton, D. VanNostrand, R. Bruhn, and C. Johnson; #90090 (2009).

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Post Migration Processing of Seismic Data

Dashuki Mohd.

Geological Society of Malaysia (GSM)

... at time zero or zero lag, i.e. when the two identical functions are aligned together. If a function is random, such as white noise or reflectivity series...

What is Horizontal Resolution?: ABSTRACT

L. R. Denham, R. E. Sheriff

AAPG Bulletin

... of the reflection being mapped. Features smaller than this seen on the section are probably noise or processing artifacts. The horizontal resolution of a migrated...

Advanced Deblending Scheme for Independent Simultaneous Source Data

M. Wang, Z.H. Chen, C. Chen, F.C. Loh, T. Manning, S. Wolfarth

Petroleum Exploration Society of Australia (PESA)

... of the Hankel matrix formed from the input data. Random noise increases the rank of the matrix, thus signal/noise separation is performed by rank reduction...

Amplitude Versus Offset (AVO) Analysis: Part 7. Geophysical Methods

Allan T. Long, R. C. Anderson

AAPG Special Volumes

... not visually evident in land data because of trace spacing and lower fold and will appear as strong random noise. But proper use of multiple removing...

High-Resolution Deconvolution with Sparsity and Lateral Continuity Constraints

Juefu Wang

Search and Discovery.com

... deconvolution efficiently removes the random noise. However, it also removes some coherent information. Another method (Figure 1c), FX filtering followed...

High-Resolution Deconvolution with Sparsity and Lateral Continuity Constraints

Juefu Wang

Search and Discovery.com

... deconvolution efficiently removes the random noise. However, it also removes some coherent information. Another method (Figure 1c), FX filtering followed...

Enhancing Seismic Discontinuity Attributes with Creative Workflows; #42025 (2017)

Satinder Chopra, Kurt J. Marfurt

Search and Discovery.com

... the filtered data, allowing migration to filter noise and enhance signal. We can do the same to precondition data for attribute analysis where we need...

Geophysical Innovation and Technology - Meeting Challenges of a Transition Zone OBC Survey in Malaysia (Paper A3)

S. K. Chandola, M. Zabuddin Zawawi, C. T. Law, R. Faizal, M. Adura, R. Roslan, J. Ismail, M. Asraff Ariff

Geological Society of Malaysia (GSM)

... components. c. Random noise occasionally observed on the data due to the wave action and swell in the shallow water portion. During the in-field data...

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)

... balancing. Structure-oriented filtering (SOF) This filter preserves energy parallel to the structural dip and suppresses random and cross-cutting noise...

Abstract: Joint OBN and 3-D DAS-VSP Data Acquisition and Processing in East China Sea; #91204 (2023)

Gang Yu1, Haibo Liu, Zhonglin Cao, Junjian Li, Jianguo Li, Yuanzhong Chen, Guangming He, Junjun Wu, Ximing Wang

Search and Discovery.com

... attenuation Gather amplitude processing TAR compensation Deconvolution Final mute Ringing noise suppression Initial velocity modeling Random noise...

Efficient and accurate velocity building from Gramian-constrained multiphysics reflection and transmission data

Jide Nosakare Ogunbo

International Meeting for Applied Geoscience and Energy (IMAGE)

... accuracy of the final jointly inverted velocity model. The robustness of the procedure is not compromised in the presence of five percent random noise...

Abstract: Kirchhoff Imaging with Adaptive Greens Functions for Compensation for Dispersion, Attenuation, and Velocity Imprecision; #90187 (2014)

Andrew V. Barrett

Search and Discovery.com

...-Consistent Deconvolution with Random Noise). Presented at ACGGP International Congress of Conventional and Unconventional Hydrocarbon Resources, Cartagena...

Statistical depth imaging through complex cluttered near-surface with path summation

Andrey Bakulin, Ilya Silvestrov, Maxim Protasov

International Meeting for Applied Geoscience and Energy (IMAGE)

... stable seismic images in random media. Similarly, Sava and Poliannikov (2008) extended conventional cross-correlation migration imaging conditions...

Joint full-waveform inversion of time-lapse OBN data at Thunder Horse field

Simon Luo, Esteban Diaz, Madhav Vyas, Ganyuan Xia

International Meeting for Applied Geoscience and Energy (IMAGE)

... 4D difference, and (c) noisy 4D difference with additive random noise and source and receive positioning errors. We perform two sets of experiments...

Abstract: Greedy Least-Squares and its Application in Radon Transforms; #90171 (2013)

Juefu Wang and Mark Ng

Search and Discovery.com

... random noise is added to complicate the problem. Figure 2b shows the result after two iterations of the greedy method. All main features are recovered...

Salt Related Volume Interpretation: An Example of Utilizing Volume Interpretation Software with Challenging Data Quality

Adam M. Seitchik

GCAGS Transactions

... to be embraced. When the data quality is low, with limited frequency content, peak frequencies in the 11 to 13 Hz range, low signal to noise due...

Abstract: Cost Efficient Acquisition to Reduce Coarse Land 3D Line Spacings Through Beyond Nyquist Interpolation and Wavefield Reconstruction for Signal and Noise; #90187 (2014)

Bill Goodway

Search and Discovery.com

... for Signal and Noise; #90187 (2014) Bill Goodway AAPG Search and Discovery Article #90187 © CSPG/CSEG/CWLS GeoConvention 2013, Integration: Geoscience...

Full Waveform Inversion for Complex Near-Surface Imaging Using SEG SEAM II Synthetic Model; #42322 (2018)

Ali A. Mohamed, Abdullatif A. Al-Shuhail

Search and Discovery.com

... frequency 25Hz Acquisition geometry 20km 2D line with SI=25m & RI=12.5m Noise attenuation to eliminate non-acoustic energy Raw After removing random...

Seismic imaging of the Turtle Mountain structure, southwestern Alberta, Canada

J.H. Isaac, D.C. Lawton, C.W. Langenberg

CSPG Bulletin

... and included spike and noise burst edits, air blast attenuation, surface wave noise attenuation and a coherency filter. Some random noise, which we were not able...

Deep learning to maximize the value of fast-track 4D seismic processing

Arnab Dhara, Haron Abdel-Raziq, Denis Kiyashchenko, Asiya Kudarova, Janaki Vamaraju, Albena Mateeva, Pandu Devarakota, Kanglin Wang, Jorge Lopez

International Meeting for Applied Geoscience and Energy (IMAGE)

... track signalto-noise, we multiply the newly obtained signal by another random factor in the range [0.2-0.7] (Scaling matched to that of fast-track data...