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The AAPG/Datapages Combined Publications Database
Showing 8,086 Results. Searched 200,357 documents.
Enhancing Seismic Interpretation Using Crosswell Seismic: Case Study From Indonesia
Tri Handayani, Zeppy Irwanzah, M. Taslim, Sanjeev Dogra, Ajay Nalonnil, Bruce Marion, Pedro Carrillo Reyes
Indonesian Petroleum Association
... in the weathered layer and difficult surface access issues, the ability to use existing wellbores to conduct a crosswell seismic survey is a unique...
2011
Structure of Argentine Continental Margin
William J. Ludwig , John I. Ewing , Maurice Ewing
AAPG Bulletin
... and geologic ages are made from comparison of velocities and depths to layers in the shelf profiles with those in land profiles recorded near boreholes...
1968
Improved Structural Imaging of the Karama Seismic Survey Using Anisotropy Kirchhoff and Beam Depth Migration
Zbigniew Ostapiuk, Bee Jik Lim, Martin Bayly
Indonesian Petroleum Association
..., there is significant water velocity change with depth between warm less saline water near the surface and colder, denser water at depth. If a single...
2012
S-transform based processing of noisy surface wave record for recovering high-resolution spectrum
Sayan Mukherjee, Mrinal Bhaumik, Tarun Naskar
International Meeting for Applied Geoscience and Energy (IMAGE)
... analysis of the surface waves (MASW) method to accurately predict near-surface shear wave velocity profiles. In field acquisitions, a common problem...
2022
Abstract: Raypath-Consistent Shear Wave Statics; #90224 (2015)
Raul Cova, David Henley, and Kris Innanen
Search and Discovery.com
...-wave processing. The lack of a good correlation between P- and S-wave velocities in the near surface introduces a whole new problem to be solved. Due...
2015
Characterizing initial-state conductivity distribution at a CO2 injection site with airborne, surface, and borehole electromagnetic induction methods
Lucie Costard and Jeffrey G. Paine
Environmental Geosciences (DEG)
... laterally and vertically varying conductivity patterns that are being used to delineate near-surface lithology and potential soil and water salinity...
2015
G. Non-Normal Incidence Reflections and the Determination of Lithology - Use of Shear Waves and Amplitude with Offset
Norman S. Neidell
AAPG Special Volumes
... Directivity and Array Effects Receiver Arrays Near Surface Velocity Variations Geometrical Spreading Propagation Loss of High Frequencies (Earth...
1987
Amplitude Mapping of Reservoirs in North Africa
Search and Discovery.com
... areas of North Africa include a sweep with frequencies in excess of 70hz, but the near surface complexities usually limit the useable frequencies...
2013
Near-Surface Models for Transition Zone Data in the Arabian Gulf
Search and Discovery.com
N/A
Abstract: Acoustic Interrogation of Complex Near Surface Attributes, by J.Y. Guigné, I. McDermott, and M.N. Cahill, #90188 (2014)
Search and Discovery.com
2014
Limitations of Reflection Seismograph
L. E. Nugent, Jr.
AAPG Bulletin
... of computational procedures. This is not a weathered zone in the geologic sense but rather a near-surface zone in which velocities are 1/5...
1953
ABSTRACT: A Case Study of Structural Prospect Validation Using Turning Ray Tomography, by Ley, Robert E.; McNeely, Joseph; Bagshi, Adnan; Buick, Darren; #90141 (2012)
Search and Discovery.com
2012
Baffin Bay: Small Ocean Basin Formed by Sea-Floor Spreading
C. E. Keen , M. J. Keen , D. I. Ross , M. Lack
AAPG Bulletin
... of the bay near Davis Strait, all attempts to map this important layer have failed. Within the flat-lying sedimentary rocks there is no reflector which...
1974
Advanced Reprocessing and Imaging: Enhancing Legacy Surveys
Dominic Fell, Shane Westlake, Richard Patenall, Jennifer Badry
Petroleum Exploration Society of Australia (PESA)
... surface multiples. An initial pass of velocity analysis was performed after first applying temporary static corrections to compensate for the near surface...
2016
Abstract: Variable Depth Streamer Acquisition: Enhancing Interpretation with Broadband Marine Seismic; #90174 (2014)
R. Soubaras, R. Dowle, and R. Sablon
Search and Discovery.com
... GeoConvention 2012, (Vision) May 14-18, 2012, Calgary, AB, Canada Figure 3: Water bottom and near-surface sediments imaged using conventional streamer...
2014
Study on Characteristic Variability of Weak Signal in High Density Seismic Acquisition; #41351 (2014)
Wujin Chen and Anchu Wu
Search and Discovery.com
... The near surface velocity model and Q factor model were created with up-hole, LVL and logging data in LJ area; the target layer model was created...
2014
Land 3D Acquisition Techniques Related to S.E. Asian Situation
Walter Ritchie
Indonesian Petroleum Association
... of an applicable technique e.g. multiple problems must be addressed with high fold and wide offset range for attenuation by CDP stack process. Near surface...
1981
Marine Geophysical Study Northeast of Trinidad-Tobago
B. G. Bassinger , R. N. Harbison , L. Austin Weeks
AAPG Bulletin
... investigators. Some of the results have been presented by Schuchert (1935), Maxwell (1948), and Suter (1960). In the study area, near-surface, shallow-water...
1971
Experiments on Wedge-Shaped Deep Sea Sedimentary Deposits in Minibasins and/or on Channel Levees Emplaced by Turbidity Currents. Part I. Documentation of the Flow
Octavio E. Sequeiros, Benoit Spinewine, Marcelo H. Garcia, Rick T. Beaubouef, Tao Sun, Gary Parker
Journal of Sedimentary Research (SEPM)
..., S.A., 2005, Transient fan architecture and depositional controls from near-surface 3-D seismic data, Niger Delta continental slope: American...
2009
Crustal Structure and Seismotectonics of Northern Baja California: Chapter 15: Part III. Regional Geophysics and Geology
J. Frez, J. J. Gonzalez
AAPG Special Volumes
.../sec near the surface and middle-crustal velocities of about 6.5 km/sec at a depth of 15 km. These results are compatible with those obtained from...
1991
Limited ichnologic fidelity and temporal resolution in pelagic sediments: paleoenvironmental and paleoecologic implications
Charles E. Savrda
PALAIOS
... to burrow stratigraphy or substrate tiering. Marine hemipelagic–pelagic substrates can be divided into two main layers—the surface mixed layer...
2014
Full phase-velocity spectrum inversion of multimode Rayleigh waves
Yanlong Niu, Yunyue Elita Li, Siau Chen Chian
International Meeting for Applied Geoscience and Energy (IMAGE)
.... The red star denotes the best-observed minimum objective function. Black dots represent previous samples. We observe that Layer 1 and Layer 3 velocities...
2022
UK Continental Shelf: Raising the Bar for Regional 3D Seismic in the Central North Sea
Gregor Duval, Steve Hollingworth, Luke Twigger, CGG
GEO ExPro Magazine
... The imaging challenges arise from several aspects of the CNS’s unique geology: relatively shallow waters (less than 100m), near-surface Pleistocene...
2015
Refraction tomography at the Nova Ni-Cu mine
Ian James, Graeme Hird, Andrew Fitzpatrick
Petroleum Exploration Society of Australia (PESA)
... are applied to account for the near-surface variations in refractor velocity and depth. This was performed using several methodologies, from layer-based...
2019
Hydrology of Meteoric Diagenesis: Effect of Pleistocene Stratigraphy on Freshwater Lenses of Big Pine Key, Florida
H. Leonard Vacher, Michael J. Wightman, Mark T. Stewart
Special Publications of SEPM
... permeable layer near the profoundly affects the distribution of groundwater flux Figure 8 shows streamlines in a circular island of radius I km for both one...
1992