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The AAPG/Datapages Combined Publications Database

Showing 330 Results. Searched 200,663 documents.

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High-resolution imaging in the Campos Basin using legacy seismic acquisition

David Brookes, Darrell Armentrout, Milos Cvetkovic, Terry Johnson, Trish Sullivan

International Meeting for Applied Geoscience and Energy (IMAGE)

... comparing the legacy image (A) to the high-resolution Image (B) The acquired crossline sampling of 25 m begins to have spatial aliasing at 15 Hz...

2023

ABSTRACT: Seismic Reflection and Mineral Prospecting

R.G. Nelson

Circum Pacific Council Publications

... to avoid spatial aliasing problems in areas of steep dip a n d structural complexity. Processing techniques suitable for a particular area may also...

1982

Abstract: Investigation of DMO Algorithms during Test-Line Processing: Some Recommendations (Paper 23)

Ng Tong San, Mohd. Hashim Abas, Leong Lap Sau

Geological Society of Malaysia (GSM)

... stretch formulation or Integral/Summation (Kirchhoff-style) methods with provisions for spatial aliasing and dip constraints. Fourier transform methods...

1995

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: 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

... statistical and aliasing limitations for key processing and inversion steps such as surface consistent statics, pre-stack migration (PSTM) and even...

2014

Abstract: 5D Interpolation and Regular Upsampling: Ill-suited or Fit-for-purpose?; #90187 (2014)

Mike J. Perz and Peter W. Cary

Search and Discovery.com

... for unstructured data In the case of unaliased data, the situation depicted in Figure 1 is not so pessimistic. Spatial aliasing occurs when the spectral...

2014

Abstract: Integration of High Resolution Gravity and Seismic Data Interpretation Techniques for Onshore Frontier Hydrocarbon Exploration: Examples From the East African Rift; #90310 (2017)

Cameron Hamilton, Katja Hirsch, Scott N. Thackrey, Chris Gunn, Michael Hertle

Search and Discovery.com

... and poor quality 2D seismic grids, reducing the probability of structural aliasing. ‘Depth to basement’ approximations were calculated using 2D inversion...

2017

Improving 3D Images

Andrew Long, Constantine Tsingas

GEO ExPro Magazine

... mode. This approach allowed the recording of steeply-dipping data free of aliasing in any direction, and enabled a high resolution processing approach...

2004

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

Abstracts: Ground Roll Attenuation Using LWD; #90173 (2015)

Ken Kocon and M. Sacchi

Search and Discovery.com

... is difficult to parameterize and is often used to remove ground roll. Aliasing in two dimensions may cause an event to appear to be dipping in the wrong...

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

... the real case. For these reasons it is advantageous to find another dual domain where aliasing does not appear and the underlying characteristics...

2015

Reprocessing the East Coast Canada Stonehouse Survey with 3D SRME and Hybrid Layer Tomography PreSDM; #41549 (2015)

Todd Mojesky, Ali Karagül, Bill Goodway, Chris Szelewski, Martin Dashwood

Search and Discovery.com

... an early stage that the 3D PreSTM would not adequately solve this problem and that PreSDM would be required. In addition, both the 3D and aliasing problems...

2015

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

Quantifying the Benefit from Pressure Gradient Data in Wavefield Reconstruction for Time-Lapse Seismic, #40843 (2011)

Phil Christie, Kurt Eggenberger, Everhard Muyzert, Massimiliano Vassallo, Ali Özbek

Search and Discovery.com

... promise for higher order de-aliasing beyond twice-Nyquist wavenumber. Introduction Time-lapse seismic information has proven to be of great value...

2011

Acquisition, Processing, and Analysis of Shallow, High-Resolution Seismic Data from the Outer Continental Shelf and Upper Slope, Offshore Louisiana

Susan E. Nissen , Janet M. Combes , Anthony G. Nekut

Journal of Sedimentary Research (SEPM)

.... A CDP spacing of 2.2 m or less would be required in order to avoid spatial aliasing of the 1200 Hz events at a dip angle of 8°. ABDULAH, K.C....

1999

The Role of Regional Seismic Surveys in the Exploration of the North West Shelf

J. Ostby, C. Johnston

Petroleum Exploration Society of Australia (PESA)

... the advantage of reducing aliasing of the noise, but the dynamic range was not sufficient to record the weak signal buried beneath the high amplitude...

1994

Test Analysis of a 2D Seismic Survey With Finer CMP Interval

Zhao Xuewu, Widya Putri Pratami, Xu Qingsen, Muchlis MYS, Guo Shanli

Indonesian Petroleum Association

... CMP interval can mitigate spatial aliasing and hence, improve denoising and S/N ratio. Instead of geophone array, the test data were also processed...

2022

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