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The AAPG/Datapages Combined Publications Database

Showing 283 Results. Searched 195,354 documents.

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Abstract: Event-directed Spectrum Extrapolation for Upsampling Seismic Traces; #90172 (2014)

Zhengshong Yao, Elvis Floreani

Search and Discovery.com

... available data cannot be used as constraining/weighting criteria because of its strong aliasing. Therefore, the problem of upsampling now is transferred...

2014

Key Technologies for Processing of Seismic Data in Gas Cloud Area, Bohai Bay Basin, #42093 (2017).

Xia Tongxing, Ming Jun, Liu Lei, Zhou Xuefeng, Liu Hongxing, Liu Xuetong

Search and Discovery.com

...-stack data. Besides, MPFI avoids spatial aliasing on account of the weighted high frequency data with respect to prior. The workflow groups several...

2017

Results of a Vibroseis Sourced 3D Seismic Survey, Phetchabun Basin, Thailand

David Remus, Rex Prosser

Southeast Asia Petroleum Exploration Society (SEAPEX)

... to their proper point of origin. The increased sampling will aid in avoiding fault and migration aliasing (Gaarenstroom, 1989). All of these factors should...

1992

Abstract: Improved Reservoir Characterisation from Inversion of High Resolution 3D Seismic Data (Poster 12)

Sagar Ronghe, Mark Sams, Sriyanee De Silva, Julian Sherriff

Geological Society of Malaysia (GSM)

... or time. This means that frequencies of up to 250 Hz can remain in the data with no aliasing effects. The lack of any spatial resampling (trace sum...

2003

Abstract: Wide Azimuth Interpolation; #90211 (2015)

Daniel Trad, Jeff Deere, and Scott Cheadle

Search and Discovery.com

... in the model that the interpolator uses. Additional considerations when sampling in multiple dimensions affect our traditional aliasing constraints, because...

2015

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

Mostafa Naghizadeh, Mauricio D. Sacchi

Search and Discovery.com

... to circumvent the aliasing problem. This paper, however, proposes a new methodology which successfully eliminates the requirement of randomization to avoid...

2014

Abstracts: Attenuating 2D Noise in a 3D World; #90173 (2015)

David C. Henley

Search and Discovery.com

... and least spatial aliasing, presenting the best opportunity for attenuation. Other arrangements of the input data either have much more irregular offset...

2015

High-EffortŽ Seismic Acquisition: Improving Image Detail; #41568 (2015)

David C. Henley, Kevin Hall, Henry Bland, Eric Gallant, Gary Margrave, Malcolm Bertram

Search and Discovery.com

.... For most routine seismic surveying, the acquisition geometry is designed to sample the anticipated subsurface features without spatially aliasing...

2015

Quality Data at a Reduced Price: Innovative Approaches in 3-D Acquisition and Processing

Mars E. Semaan, Michel F. Bee, Maryanto, Gerard Dufourd, Eddy A. Sentani

Indonesian Petroleum Association

... aliasing. The steepest inline events are in the western part of the Pedada field along the fault (Quadrants I and III in Figure 1). The steepest crossline...

1995

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

... Resolution and Accuracy  ertical resolution, sampling theorem, and V aliasing Resolution-related non-uniqueness Accuracy-related non...

2011

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

... spatial aliasing of steep dips. Furthermore, the average fold is low being approximately 40 fold (Figure 2) leading to concerns about signal to noise...

2014

Nonuniform dispersed source arrays for broadband seismic acquisition

Joaqun A. Acedo, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

..., but aliasing starts to appear in the frequency Third International Meeting for Applied Geoscience & Energy 10.1190/image2023-3907882.1 Page 189...

2023

Recognition of Subtle Features in Geologic Maps

J. E. Robinson, D. F. Merriam

CSPG Special Publications

.... This is the aliasing error which reaches a probable 100% at the limiting frequency. In addition to the aliasing error there is the random error...

1980

Noise Attenuation in Common Receiver Gather to Enhance S/N Ratio in Seismic Data

Dara Felisia A, Triswan Mardani Ade Surya, R.B.Fauzan Irshadibima, Firman Syaifuddin

Indonesian Petroleum Association

.... Similarly, conventional f-k filtering cannot be applied easily and must be used cautiously due to spatial aliasing of the air waves (Steeples and Miller, 1998...

2017

Aspects of Seismic Resolution: Chapter 1

R. E. Sheriff

AAPG Special Volumes

... considerations. However, on migrated sections other factors become important, such as noise on the unmigrated section, spatial aliasing, migration aperture...

1985

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

Aaron Stanton

Search and Discovery.com

... Summary Converted waves suffer from a low signal to noise ratio and stronger aliasing than P-waves. These characteristics are problematic when...

2015

Shipboard Processing and Interpretation

D.M. Angstadt

Geological Society of Malaysia (GSM)

... sections at this point contained a fSir' amount of linear aliasing noise commonly generated in this area when the shot spacing is double the group...

1992

Beam Migration for Imaging of Complex Structures

Karl Schleicher, John Sherwood, Lynn Comeaux, Mazin Farouki

Indonesian Petroleum Association

... variations in the data acquisition geometry (minimized acquisition footprint). Also the individual wavelets should not exhibit any aliasing effects, even...

2009

Broadband Seismic Technology and Beyond: PART X: IsoMetrix … Isometric Sampling

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... of the limitations is the effect called aliasing. Once more, we step back to basics. An example of aliasing can be seen when watching wagon wheels in old Westerns...

2014

Application of Robust Noise Reduction on a Land 3D Seismic Data

Agus Abdullah, Jesse Shaw

Indonesian Petroleum Association

... is due to aliasing. This aliasing effect can be reduced by increasing the FFT sampling i.e. in this case we used 2048 FFT samples. Figure 7 shows...

2012

Optimization of Seismic Acquisition Design Using Ocean Bottom Nodes at 'MHS' Field

M Hanif Syamri, Ruhul Firdaus, Syamsurijal Rasimeng, Agung A. Susanto

Indonesian Petroleum Association

... cause aliasing in the tilt reflector, causing noise and probably loss of primary reflection. Whereas azimuth is the raypath direction from the source...

2019

Basic Seismic Processing: Part 7. Geophysical Methods

Peter M. Duncan

AAPG Special Volumes

... aliasing. Aliasing is a phenomenon in which high frequency data masquerades as low frequency energy as a result of undersampling. To sample a signal properly...

1992

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

.... This equation may be used recursively to compute a solution to the wave equation. The size of the timestep is limited by an aliasing condition r = D...

2013

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...

1993

Optimised 3D Land Geophysical Survey Design - A Case Study

P. van Baaren

Papua New Guinea (PNG) Petroleum Convention Proceedings

... the sampling interval required to prevent aliasing of the steepest dipping events. However, the raw seism ic data may contain diffractions with steeper dips...

2000

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