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The AAPG/Datapages Combined Publications Database
Showing 16,516 Results. Searched 190,739 documents.
Seismic Data Acquisition and Processing in the Midway-Sunset Oil Field
C. R. Willingham, A. S. Wylie Jr., D. J. Underwood
Pacific Section of AAPG
... of the spacing between the groups. To retain the effectiveness and prevent aliasing of returns from dipping structure, the arrays, in these areas, were...
2001
A Comparative Study of 3-D Noise Attenuation Techniques
Daniel Wheaton, Yendri, Kusnarya
Indonesian Petroleum Association
... and coherent noise are studied. Predictive filtering in the f-x (frequency - space) domain for random noise suppression may be applied post stack as either...
1996
Section Five: Use of Gravity Methods on Diapiric Structures
New Orleans Geological Society
... aliasing (distortion due to sampling frequency) of the data. Once station spacing has been determined, the entire survey should be metered on a square...
1995
Post Migration Processing of Seismic Data
Dashuki Mohd.
Geological Society of Malaysia (GSM)
.... As seismic energy propagates through the earth, it experienc~s ~arious changes in frequency and phase characterIstIcs due to variations in the subsurface...
1994
Gravity's Role in a Modern Exploration Program
Gene Greene
Houston Geological Society Bulletin
... of the entire survey. At least two samples per wavelength are needed to prevent aliasing and adequately define an anomaly. Once the station spacing has...
1991
Comprehensive Use of VSP Technology at Elk Hills Field, Kern County, California, by R.J. Brewer and Don Greenfield, #40091 (2003).
Search and Discovery.com
2003
Interpretation of Airborne Magnetic Data of Upper Benue Trough, Northeastern Nigeria, #10888 (2016).
Omeje Maxwell, E.S Joel, lusegun Adewoyin, O. Meludu, O. Meludu
Search and Discovery.com
... are much wider than 2 km and therefore lie in a frequency range from aliasing which do not occur with a 1 km digitizing grid. Having digitized each...
2016
Long Climatic Time Series from Sediment Physical Property Measurements
Timothy D. Herbert, Larry A. Mayer
Journal of Sedimentary Research (SEPM)
... term evolution of climate in the Milankovitch frequency band, as well as to reconstruct patterns of carbonate sedimentation over time. Sedimentation...
1991
Unconventional Processing for 3D Data: A 1993 Case History
Claude Eizlini, Jacques Bonnafe, Bugi Kamil, Gilles Bitoun
Indonesian Petroleum Association
... a quick glance at typical data without statics will show some acceptably fair reflections albeit with a very narrow frequency band. The experience...
1994
Three Dimensional Exploration in California — A Case History
E. T. Selby
Indonesian Petroleum Association
... is that, to prevent aliasing, there must be at least two samples within the period of the highest frequency to be defined. The requirements for non-aliased space...
1977
Land 3D Acquisition Techniques Related to S.E. Asian Situation
Walter Ritchie
Indonesian Petroleum Association
... Acquisition Project Design Simple geometric relationships and sampling theory establish subsurface (and surface) spacing based on known dip, frequency...
1981
Geostatistical Integration of Crosswell Data for Carbonate Reservoir Modeling, Mcelroy Field, Texas
William M. Bashore, Robert T. Langan, Karla E. Tucker, Paul J. Griffith
Special Publications of SEPM
... the Grayburg Formation. CROSSWELL DATA ACQUISITION The data were collected using a swept-frequency , piezoelectric source and a seven-level hydrophone...
1995
Chapter One: Introduction to AAPG Memoir 42/SEG Investigations in Geophysics, No. 9, 7th Ed.
Alistair R. Brown
AAPG Special Volumes
.... The interpreter must consider data quality, frequency content, resolution, data phase, and data polarity, and must learn as much as possible about the data...
2011
The Wave Equation Applied to Migration
D. Loewenthal, L. Lu, R. Roberson, J. Sherwood
Southeast Asia Petroleum Exploration Society (SEAPEX)
... low cut, 30 Hz high cut) in order to avoid any drastic aliasing problems during the migration procedure. The model parameters were a constant...
1978
Recent Advances in Borehole Seismic
W. L. Nutt
Indonesian Petroleum Association
... seismic frequency bandwidth. The calibrated sonic log so obtained can be used in conjunction with the density log to produce a synthetic seismogram. Careful...
1984
Squeezing Every Last Drop Out of a Coarse 3D Oil Sands Dataset for Refining 3D Survey Design A Case History; #41500 (2014)
Sylvestre Charles, Jim Hostetler, Jiwu Lin, Xiaoming Luo
Search and Discovery.com
... at the Devonian unconformity it is about 23 traces per bin. Assuming an average velocity of 2200m/s, for this bin size the maximum un-aliased frequency...
2014
Structural Analysis Using Spatial Filtering in Interior Plains of South-Central Alberta
J. E. Robinson , H. A. K. Charlesworth , M. J. Ellis
AAPG Bulletin
... (Fig. 14). In this way, any error caused by aliasing (folding of the true amplitude spectrum about a frequency with a wavelength of twice the digital...
1969
Full-Resolution 3D Radar Stratigraphy of Complex Oolitic Sedimentary Architecture: Miami Limestone, Florida, U.S.A.
Adrian Neal, Mark Grasmueck, Donald F. McNeill, David A. Viggiano, Gregor P. Eberli
Journal of Sedimentary Research (SEPM)
... and outcrops is problematic due to spatial aliasing. A 250 MHz full-resolution 3D GPR data set was collected over an area of 45 m × 24 m that encompassed...
2008
2012 Update of Southern Mid-Continent Theses and Dissertations
Neil H. Suneson
Oklahoma City Geological Society
...-Vargas, Alejandro, 2011, Suppression of aliasing artifacts on 3D land data via constrained least-squares migration. MS. Cataldo, Ernesto D., 2011...
2012
Abstract: A Faster, More Accurate Gaussian Simulation; #90172 (2014)
Colin Daly, Sandra Quental, Darcy Novak
Search and Discovery.com
... to aliasing. This can be improved by simulating on a larger volume by padding the data, then ‘cutting out’ the region of interest. The factor of simulation...
2014
Volumetric Curvature Attributes for Mapping Faults, Fractures, Depositional and Diagenetic Features
Satinder Chopra and Kurt J. Marfurt
Search and Discovery.com
... and tides Problems due to processing • Incorrect velocities • Migration operator aliasing Footprint removal (a) (b) Low (c) High (d) Time slices...
Unknown
Re-Evaluation of Hydrocarbon Potentials of Eastern Part of the Chad Basin, Nigeria: An Aeromagnetic Approach, #10405 (2012)
Emmanuel Anakwuba, Augustine Chinwuko
Search and Discovery.com
... in minimizing aliasing effects in sampled data (Bath, 1974). A grid interval of 1 km was used to obtain a 165 x 165 data-point grid. The gridded data...
2012
4D Acquisition Strategies For Australian Reservoir Monitoring Projects
Andrew Long
Petroleum Exploration Society of Australia (PESA)
.... The frequency of monitor surveys depends on the rate of change in reservoir state as production progresses and the cost-benefit model fo r 4D seism ic...
2006
Seismic expressions of a Miocene prograding carbonate margin, Mut Basin, Turkey
Xavier Janson, Gregor P. Eberli, Florence Bonnaffe, Fabrice Gaumet, Vincent De Casanove
AAPG Bulletin
..., even at 40-Hz frequency; however, most of the complex stratigraphic architecture is below standard seismic resolution. Sigmoidal outcrop geometries...
2007
Parsimonious Deconvolution
Jon F. Claerbout
Southeast Asia Petroleum Exploration Society (SEAPEX)
... high frequency noise. Varimax deconvolution decreases the noise. More realistic estimated filters bτ and further noise reduction can be achieved...
1980