ONSHORE APPLICATIONS OF 3-D SEISMIC TECHNOLOGY 3D DATA ACQUISITION

Tom Davis, Steve Roche, and Susie Mastoris

Fort Worth Geological Society

... of aliasing. An example of aliased data could be steeply dipping, higher frequency data (often a desirable degree of resolution) that is aliased...

Sensitivities, Limitations, and Error Inherent in Resistivity-tool-response Modeling - Application of Resistivity-Tool-Response Modeling for Formation Evaluation - Archie Series No. 2

Hezhu Yin

AAPG Special Volumes

... in spatial frequency resulting from the discrete-sampling process. Aliasing will occur when there are fewer than two samples per cycle; hence, an input...

Ground Roll Removal and Signal Preservation by Cascading SVD Polarization Filters with Localized Fk-Filters; #41543 (2015)

Kristof De Meersman, Chris Ansorger

Search and Discovery.com

... over receiver array systems in areas where higher frequency content of the signal is demanded. 3C systems require single sensor acquisitions to avoid...

Seismic Acquisition in the Sub-Andean Belt of Bolivia

Jair R. de S. Soares Filho, Roberto D. Chaves

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

..., field processed seismograms were analyzed in the shot domain (common shot gathers) after few steps that included frequency range filtering and spectral...

Abstract: Rank-Reduction-Based Trace Interpolation; #90172 (2014)

Stewart Trickett, Lynn Burroughs, Andrew Milton, Larry Walton, Rob Dack

Search and Discovery.com

... of multidimensional filters to suppress random noise based on matrix-rank reduction of constant-frequency slices. Here we extend these filters to perform...

Frequency-Domain Waveform Tomography in the Foothills: Velocity Model Estimation with Synthetic Long-Offset Data

Search and Discovery.com

...Frequency-Domain Waveform Tomography in the Foothills: Velocity Model Estimation with Synthetic Long-Offset Data Frequency-Domain Waveform...

Identifying and Fixing Artifacts that Arise in Structure-Oriented Filtering; #42479 (2019)

Satinder Chopra, Kurt Marfurt

Search and Discovery.com

... operator aliasing (remnants of migration ellipses that do not destructively interfere) appears as steeply dipping coherent artifacts that cut across...

Sumpal Fractured Basement Field, Structural Attribute Analysis and Interpretation Case Study, Workflow Management and New Insights from Pre-Stack Depth Migrated Data and Azimuthal Stacks

Yan Darmadi, John Hughes, Sugiharto Danudjaja, Rita Achdiat

Indonesian Petroleum Association

..., the spatial aliasing problem is mitigated by the inherent low frequency signal from fault plane energy (aliasing is a function of spatial sampling...

Elastic full-waveform inversion using OBN data acquisition

Denes Vigh, James Xu, Xin Cheng, Bing Bai

International Meeting for Applied Geoscience and Energy (IMAGE)

... be implemented in time domain or frequency-domain (Brossier 2010) while Castellanos et al. (2011) suggested a hybrid method using time-domain forward modeling...

Abstract: The Resolution Revolution

Andrew Long

Petroleum Exploration Society of Australia (PESA)

... of a large frequency bandwidth throughout all stages of A common frustration with 3D acquisition is that high -quality resolution observed on existing 2D...

Abstract: Physical Testing of the Effect of Tilting on the Reflection Coefficient in an Anisotropic Material; #90172 (2014)

Miryam Ortiz-Osornio, Douglas R. Schmitt

Search and Discovery.com

... resolution in the frequency domain, and avoid aliasing, we record 30,000 samples with a sampling interval of 0.002 s. The experiments are carried out...

A successful story of working with towed streamer and ocean-bottom node data on interpolation and image enhancement

Heather Yao, Amr Elsabaa, Nathaniel Cockrell, Dawit Desta, Ruoyu Gu, Christina Tapia, Nigel Hicks, Lauren Peschier

International Meeting for Applied Geoscience and Energy (IMAGE)

... as prior information, in addition we combine the migration outputs to optimize the subsurface image. Beyond aliasing interpolation with priors...

Abstract: The Phase Shift Time Stepping Equation and the Marmousi Data Set; #90171 (2013)

Ben D. Wards, Gary F. Margrave, and Michael P. Lamoureux

Search and Discovery.com

... performance of finite-difference operators, reverse-time migration (RTM) produces images which are typically low frequency or require large computational...

Fundamental 3-D Seismic Survey Design

Stuart Wright

Rocky Mountain Association of Geologists

... with uniform attributes, changes in amplitude, frequency, and other geophysical measurements are probably indicative of changes in reservoir...

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)

... and broadband in the frequency or wavenumber domain. Additional challenges are strong variation of noise characteristics and spatial aliasing. Conventional...

MAZ Processing for Basement Fracture: A Case Study on 3D Conventional Land Seismic Dataset

Ahmad Zazeli Fuadi, Yatty Surtiati

Indonesian Petroleum Association

... a concept of Fresnel zone and spatial aliasing to calculate the actual bin size in our target (basement fracture). The actual bin size will become...

Abstract: Least Squares Pre-Stack Time Migration for Imaging and Reconstruction of Converted Waves; #90224 (2015)

Aaron Stanton

Search and Discovery.com

... lower, and the lower velocity receiver side ray path makes the aliasing frequency of converted waves lower than their P-wave counterpart. One way...

Equivariant imaging for self-supervised regularly undersampled seismic data interpolation

Weiwei Xu, Vincenzo Lipari, Paolo Bestagini, Politecnico di Milano, Wenchao Chen, Stefano Tubaro

International Meeting for Applied Geoscience and Energy (IMAGE)

... (1/m) 240 -0.5 0 Frequency (Hz) Time(s) 4.0 Wavenumber (1/m) 0.5 -0.5 0 3.0 4.0 30 40 30 40 60 5.0 6.0 (a) (b) Trace 80 160...

Designing and evaluating irregular and opportunistic onshore seismic surveys

Tim Dean, Dave Monk

International Meeting for Applied Geoscience and Energy (IMAGE)

... not be adequate. Historically, interpolation has been thought of as the problem of unwrapping aliasing since simple sinc interpolation (adding...

Self-supervised learning for seismic swell noise removal

Yuan Zi, Shirui Wang, Pengyu Yuan, Xuqing Wu, Jiefu Chen, Zhu Han

International Meeting for Applied Geoscience and Energy (IMAGE)

... the seismic cable fluctuate up and down in the ocean, creating low-frequency swell noise in the data. Swell noise appears as low frequency (2 10 Hz...

Abstract: Investigation of Seismic Imaging Capabilities for Small, Shallow Carbonate-Hosted Massive Sulphide Deposits; #90187 (2014)

Laura Quigley and Bernd Milkereit

Search and Discovery.com

... small trace spacing (4-5m) is needed so that spatial aliasing of shear and surface waves is avoided. With a seismic source frequency centered at 75Hz...

Noise logging of oil-water flow through an AICD

Peyman Moradi, Katie Walker, Limin Song, Bryce Campbell, Brian Seabrook, Ricardo Garza

International Meeting for Applied Geoscience and Energy (IMAGE)

... frequency of 51.2 kHz. While this exceeds the manufacturers' reported sensitivity range, it helps prevent aliasing and yields a higher-resolution waveform...

Abstract: Multi-component or Vector Dip Filtering Using the S-transform; #90187 (2014)

Kristof De Meersman and Majda Mihoub

Search and Discovery.com

... in a way that handles irregular spatially sampled data as well as non-stationarity in time and frequency. The result is a method to estimate...

Abstract: Seismic Data Decomposition into Spectral Components Using Regularized Nonstationary Autoregression; #90187 (2014)

Sergey Fomel

Search and Discovery.com

...-frequency decomposition over a set of regularly sampled frequencies (Liu and Fomel, 2012). When the input signal is fitted to shifted versions...

Shipboard Processing and Interpretation

D.M. Angstadt

Geological Society of Malaysia (GSM)

... is used to tailor the processing flow to the data and design correct filters based on the frequency characteristics of the recorded signal, data...