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The AAPG/Datapages Combined Publications Database
Showing 3,212 Results. Searched 200,357 documents.
Defining a Steeply-Dipping Salt Flank in Mississippi with a New High-Certainty 3D Method
Nicholas Brooks, Pat Donais, Werner Heigl, Jakob Haldorsen, Fred Li
GCAGS Transactions
... of the shear wave is perpendicular to this ray. An impulsive source in a homogenous, isotropic medium generates a uniformly expanding spherical wave front...
2015
Depth of Disturbance of Sand on Sea Beaches by Waves
C. A. M. King
Journal of Sedimentary Research (SEPM)
... correlation was found between the depth of disturbance of the sand and the wave height, and the results have been analyzed statistically. The depth...
1951
The Axial Ratio C/B as an Indicator of shape Selective Transportation
Luis A. Spalletti
Journal of Sedimentary Research (SEPM)
... significance of the axial ratio C/B and the geometricity ratio were analyzed. C/B is a parameter used by Zingg (1935) to differentiate spherical and rod clasts...
1976
Abstract: Microbialites in Zechstein Cycle 2 Carbonates (NE England and Poland): Types and Source Rock Perspectives; #90153 (2012)
Mirosław Słowakiewicz and Maurice E. Tucker
Search and Discovery.com
... that appear peaked or rounded in cross-section. They display the same relative orientation and are believed to have originated as wave-generated...
2012
Abstract: Shallow VSP Survey using a Small Vibrator Source; #90171 (2013)
Joe Wong, Soo K. Miong, Robert R. Stewart, Eric V. Gallant, and Kevin W. Hall
Search and Discovery.com
... component data were subjected to wavefield separation to remove down-going P-wave and S-wave events, as well as other up-going and down-going low-velocity...
2013
II. Information Content and Resolution Potential of Seismic Data.
Norman S. Neidell
AAPG Special Volumes
... motion within this region. Fig. Spherical wave motion encountering a flat reflector illustrating Fresnel zone region which is principally responsible...
1979
Petrophysical Relationship to Predict Synthetic Porosity Log; #41124 (2013)
Thariq Guntoro, Intan Putri, and Ayi Syaeful Bahri
Search and Discovery.com
... of hydrocarbon either gas or oil. By petrophysical relationship, the synthetic log can be estimated. Faust's equation was used to obtain P-wave velocity...
2013
Cross-Shore Distribution of Sediment Texture Under Breaking Waves Along Low-Wave-Energy Coasts
Ping Wang , Richard A. Davis, Jr. , Nicholas C. Kraus
Journal of Sedimentary Research (SEPM)
...Cross-Shore Distribution of Sediment Texture Under Breaking Waves Along Low-Wave-Energy Coasts Ping Wang , Richard A. Davis, Jr. , Nicholas C. Kraus...
1998
Pebbles from a Pothole: A Study in Shape and Roundness
Dorothy Carroll
Journal of Sedimentary Research (SEPM)
... on the scarcity of spherical pebbles in the natural material available to him. In order to obtain some information about the occurrence of pebbles in potholes...
1951
2013
The Wedge Model Revisited; #41545 (2015)
Joanna K. Cooper, Don C. Lawton
Search and Discovery.com
... complications for migration. The study suggests that pure-mode and converted-wave multiples can be significant recorded events in the presence of high velocity...
2015
CRS-Stack and NIP-Wave Tomography Implemented to the SH-Wave Reflection Seismic Data for Shallow Hydrocarbon Prospecting (Paper P30)
M. R. Sule, A. A. Valencia, A. Hendriyana, U. Polom, C. M. Krawczyk
Geological Society of Malaysia (GSM)
..., such as low cut detected. The use of CRS-Stack and NIP-wave tomography filtering to reduce ground roll, spherical divergence correction, methods...
2012
Abstract: Regular Grids Travel Time Calculation Fast Marching with an Adaptive Stencils Approach; #90187 (2014)
Zhengsheng Yao, Mike Galbraith, and Randy Kolesar
Search and Discovery.com
...daptive stencils’ result Conclusions During wave propagation, the wavefront is in general neither flat nor circular/spherical and therefore, there is no s...
2014
Abstract: Joint OBN and 3-D DAS-VSP Data Acquisition and Processing in East China Sea; #91204 (2023)
Gang Yu1, Haibo Liu, Zhonglin Cao, Junjian Li, Jianguo Li, Yuanzhong Chen, Guangming He, Junjun Wu, Ximing Wang
Search and Discovery.com
... quality. The 3-D DAS-VSP downgoing multiple reflection wave imaging shows significant imaging quality improvement in comparison with the vintage 3-D...
2023
Mudstone Geophysical Properties for Pressure Prediction
Dan Ebrom
GCAGS Transactions
... geophysical properties to start with are total porosity (or equivalently, density), P-wave velocity, and S-wave velocity. Earlier model...
2008
Technical Article: Finding Subtle Traps with Seismic: Interpretative Criteria Clarified
A. Easton Wren
Petroleum Exploration Society of Australia (PESA)
... for natural amplitude decay as a function of transmission, spherical divergence, and others also were introduced. Now waiting in the wings is the spectre...
1986
Utilization of Existing Wells in Seismograph Work
Burton McCollum , Wilton W. Larue
AAPG Bulletin
... is several miles away from the dome, experience has sh wn that under these conditions the wave front, instead of being spherical, becomes somewhat ellipsoidal...
1931
Abstracts: Determining Elastic Constants of an Orthorhombic Material by Physical Seismic Modeling; #90173 (2015)
Faranak Mahmoudian, Gary F. Margrave, P. F. Daley, and Joe Wong
Search and Discovery.com
... specific acquisition configurations. A simplified expression between the P-wave group velocity and elastic constants, has allowed for the estimation of off...
2015
Abstract: An Azimuthal-AVO-Compliant 3D Land Seismic Processing Flow; #90171 (2013)
David Gray, Darren Schmidt, Nirupama Nagarajappa, Charles Ursenbach, and Jon Downton
Search and Discovery.com
...., 2001). 2. Azimuthal spherical divergence correction (Xu and Tsvankin, 2006). 3. 5D interpolation (Trad et al., 2005). 4. Migration of Common Offset...
2013
A double double-porosity model for wave propagation in patchy-saturated tight sandstone with fabric heterogeneity
Jing Ba, Mengqiu Guo, Wenhao Xu, Fengyuan Sun, Lin Zhang, Wei Cheng
Petroleum Exploration Society of Australia (PESA)
...A double double-porosity model for wave propagation in patchy-saturated tight sandstone with fabric heterogeneity Jing Ba, Mengqiu Guo, Wenhao Xu...
2018
Application of Seismography to Geological Problems
Eugene McDermott
AAPG Bulletin
... accurately stated, the wave front is spherical. If the material is not homogeneous the path is curved, that is, the wave is gently refracted, and the wave...
1931
Early-Formed Fractures: Precambrian-Like ‘Molar Tooth’ Mudcracks in Phanerozoic Unconventional Mudstone Reservoirs
Search and Discovery.com
N/A
Abstract: Modelling Near-field Effects in VSP-based Q-estimation Part 2: Modelling Results; #90171 (2013)
Arnim B. Haase and Robert R. Stewart
Search and Discovery.com
... and Robert R. Stewart University of Houston Summary The complete spherical wavefield emanating from a P-wave point source surrounded by a homogeneous isotropic...
2013
Ooids and Grapestone – A Significant Source of Carbonate Mud from Caicos Platform by Noelle Van Ee and Harold R. Wanless, #50163 (2009).
Search and Discovery.com
2009
Cave Pearls and Pisoliths: A Sedimentological Comparison
Carol A. Hill
West Texas Geological Society
... Cave, Guadalupe Mountains, New Mexico (Nymeyer, 1938). Shape is typically spheroidal for both pisoliths and cave pearls, but can vary from spherical...
1992