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The AAPG/Datapages Combined Publications Database

Showing 16,322 Results. Searched 190,067 documents.

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Abstract: Antialiasing 5D Interpolation; #90187 (2014)

Stephen K. Chiu

Search and Discovery.com

... to constrain the least-squares inversion in MWNI, frequency by frequency, to overcome the aliasing artifacts. This new interpolation scheme expands...

2014

Some Fundamental Issues on the Effect of Sampling on Wavefield Imaging

Peter W. Cary

Search and Discovery.com

... introduced with an explanation of some very basic notions (Lines et al., 2001). For example, the concepts of minimal sampling, the Nyquist frequency...

Unknown

Some Fundamental Issues on the Effect of Sampling on Wavefield Imaging

Peter W. Cary

Search and Discovery.com

... introduced with an explanation of some very basic notions (Lines et al., 2001). For example, the concepts of minimal sampling, the Nyquist frequency...

Unknown

Antialiasing 5D Interpolation; #41497 (2014)

Stephen K. Chiu

Search and Discovery.com

... initial model are typically not aliased and can be used to constrain the least-squares inversion in MWNI, frequency by frequency, to overcome the aliasing...

2014

Abstract: Getting Something for Nothing: Noise Attenuation in an Aliased World; #90174 (2014)

David C. Henley

Search and Discovery.com

... spatial sampling small enough to avoid aliasing the highest frequency components of the lowest-velocity surface wave energy. The offending noise can...

2014

Getting Something for Nothing: Noise Attenuation in an Aliased World; #41291 (2014)

David C. Henley

Search and Discovery.com

... the data in the field using spatial sampling small enough to avoid aliasing the highest frequency components of the lowest-velocity surface wave...

2014

Mini Seismic Processing System for Training and Research Purposes

Suprajitno Munadi, Bambang Triharjanto

Indonesian Petroleum Association

.... If spatial aliasing happens the seismic data above a certain frequency must be filtered out to avoid ambiguitie in representing dipping events. Figure 5...

1993

Seismic Frequency Bandwidth Constraints in Deepwater Locations

Andrew Long, Iain Buchan

Indonesian Petroleum Association

... only causes aliasing of steeply-dipping energy for shallow arrival times below the water bottom, and the dominant constraint upon recoverable frequency...

2004

Seismic Modelling in 3D for Migration Testing

Search and Discovery.com

... testing. Such an exhaustive dataset, defined as having no spatial aliasing in either source or receiver gathers, can be extremely large and the efficiency...

2013

Abstract: Comparison of 3D Interpolation Methods and Validation through Post Stack Inversion: A Case Study from 3D North Amer Oil Field, Gulf of Suez, Egypt; #90254 (2016)

Mohamed Afia, Michel Schonewille, Krishna Ramani, Abdallah Ibrahim, Tarek El Melegy, Tarek Nafie, Christoph Koeninger, Gamal Khedr, Tarek Dahrog, Mostafa El Meihy

Search and Discovery.com

... interpolator (3D-TDRI) with 3D frequency-domain matching pursuit Fourier interpolation (3DMPFI) using marine seismic data. 3D-MPFI and the similar anti-leakage...

2016

Abstract: Increasing Seismic Resolution by Decreasing Receiver Spacing; #90171 (2013)

David C. Henley, Kevin W. Hall, Malcolm Bertram, and Eric Gallant

Search and Discovery.com

..., down to at least 500 ms. High frequencies have been boosted by whitening, so aliasing of the higher frequency components of residual noise is now...

2013

-- no title --

user

Search and Discovery.com

.... Single sensor acquisition systems are preferred over receiver array systems in areas where higher frequency content of the signal is demanded. 3C...

Unknown

-- no title --

user

Search and Discovery.com

.... Single sensor acquisition systems are preferred over receiver array systems in areas where higher frequency content of the signal is demanded. 3C...

Unknown

Multiple Aliasing Problems in Marine Data

P. Chia, C. O. Kuek, P. Ward, K. S. Lee

Geological Society of Malaysia (GSM)

...Multiple Aliasing Problems in Marine Data P. Chia, C. O. Kuek, P. Ward, K. S. Lee Geol. Soc. Malaysia, Bulletin 32, November 1992; pp. 247 - 260...

1992

A High-Resolution VSP in the Oil Sands for Improved Reservoir Characterization; #41521 (2015)

Mark Morrish, Laurie Bellman

Search and Discovery.com

.... The requirements were:     Record high quality 3-component (3C) data; Have a tight receiver interval to avoid spatial aliasing of the data...

2015

Multiple, Diffractions and Diffracted Multiples in the South China Sea: How Dense Does Our Acquisition Geometry Need to be? (Geophysics Paper 16)

Rosemary K Quinn, Lynn B Comeaux

Geological Society of Malaysia (GSM)

... by the application of 3D SRME. SPATIAL ALIASING Diffractions are often recorded aliased. They are typically spatially aliased because of the steep diffraction tails...

2011

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...

2015

Abstracts: A New f-p Domain Weighting Function in Minimum Weighted Norm Interpolation of Seismic Data; #90173 (2015)

Zhengsheng Yao, Mike Galbraith, and Randy Kolesar

Search and Discovery.com

... on the assumption of linear events and the un-aliased portion of spatial spectra at low temporal frequency can be linearly extrapolated to that at high...

2015

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

Zhengshong Yao, Elvis Floreani

Search and Discovery.com

... to predict the spectrum component at high frequency, the requirement of data length can be in excess of practical data length, and the aliasing...

2014

Synthetic Seismograms: Part 7. Geophysical Methods

Kari Rekoske, David Hicks

AAPG Special Volumes

... sample intervals to reduce computation time and to smooth them without aliasing the log values. 3. The resulting acoustic impedance curve is then used...

1992

Abstract: Image Enhacement After Migration; #90174 (2014)

John C. Bancroft, Thais Guirigay, and Helen Isaac

Search and Discovery.com

... of dipping events to prevent aliasing, and a deconvolution would increase the frequency of the wavelet and introduce aliasing. This reason is valid...

2014

Seismic Imaging of Steeply-Dipping Salt Ridges in the Mississippi Interior Salt Basin

Karl J. Kaufmann , Richard Ianniello , Oliver Carroll

GCAGS Transactions

... - because of spatial aliasing, the group interval, or more properly the CDP interval, limits the degree of steep dip that can be migrated. Line Length...

1992

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