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The AAPG/Datapages Combined Publications Database
Showing 20,863 Results. Searched 200,635 documents.
Contrasting facies patterns between river-dominated and symmetrical wave-dominated delta deposits
Brian J. Willis, Tao Sun, R. Bruce Ainsworth
Journal of Sedimentary Research (SEPM)
...Contrasting facies patterns between river-dominated and symmetrical wave-dominated delta deposits Brian J. Willis, Tao Sun, R. Bruce Ainsworth 2021...
2021
Sea-Level Change and the Preservation Potential of Wave-Dominated and Tide-Dominated Coastal Sequences
Richard A. Davis Jr., H. Edward Clifton
Special Publications of SEPM
...Sea-Level Change and the Preservation Potential of Wave-Dominated and Tide-Dominated Coastal Sequences Richard A. Davis Jr., H. Edward Clifton...
1987
Modeling the Rollovers of Sandy Clinoforms from the Gravity Effect on Wave-Agitated Sand
Neil C. Mitchell
Journal of Sedimentary Research (SEPM)
...Modeling the Rollovers of Sandy Clinoforms from the Gravity Effect on Wave-Agitated Sand Neil C. Mitchell 2012 464 468 Vol. 82 (2012) No. 7. (July...
2012
II. Migration to Remedy Geometric Distortions
Robert E. Sheriff
AAPG Special Volumes
... Karcher used it in 1921. The method is still appropriate if we allow for velocity variations in plotting the wave fronts, rather than simply striking arcs...
1981
Fluid and Sediment Dynamics on Continental Shelves
Donald J. P. Swift and Alan W. Niedoroda
Special Publications of SEPM
..., the contours of the shelf surface, and the shelf edge. They sweep sediment along the shelf and in combination with the the In wave-orbital velocity...
1986
Microseismic imaging with three-component borehole sensors
Jakob B. U. Haldorsen
International Meeting for Applied Geoscience and Energy (IMAGE)
... signal propagating at an apparent velocity, and stacking the aligned signal. If the wavefield recorded by sensor m located at xm is a Pwave propagating from...
2022
Forward modeling for arbitrary irregular free-surface based on body-fitted grid
Erxiang Wei, Jianping Huang, Zhenchun Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... irregular free-surface, and then derive the firstorder velocity-stress elastic wave equations in a curvilinear coordinate system by discretizing the model...
2023
Viscoelastic anisotropic seismic wave modeling using recursive convolution method and curvilinear collocated finite difference method for different boundaries
Chao Jin, Bing Zhou
International Meeting for Applied Geoscience and Energy (IMAGE)
...-form of velocity-stress wave equation that remains the same version as the elastic but valid for various viscoelastic media, a water free-surface...
2023
Predicting S-wave sonic logs using machine learning with conventional logs for the Delaware Basin, Texas
Jaewook Lee, Yangkang Chen, Robin Dommisse, Alexandros Savvaidis, Guo-chin Dino Huang
International Meeting for Applied Geoscience and Energy (IMAGE)
... S-wave velocity is critical in multiple applications but is often inaccessible in older wells. To overcome this practical obstacle, we propose...
2023
Modeling Waves and Circulation in Lake Pontchartrain, Louisiana
Richard P. Signell, Jeffrey H. List
GCAGS Transactions
... are then used to determine the regional "climate" of bottom orbital velocity (showing the spatial and temporal variability of wave-induced currents at the bottom...
1997
Anisotropic PP and PSv Prestack Depth Migration of 4C (OBC) Seismic Data, Offshore Trinidad
Tony Johns
Search and Discovery.com
... for a VTI medium (Thomsen, 1986), using parameters G and H. Anisotropy has a greater influence on the description of the velocity for S-wave than with P...
Unknown
Anisotropic PP and PSv Prestack Depth Migration of 4C (OBC) Seismic Data, Offshore Trinidad
Tony Johns
Search and Discovery.com
... for a VTI medium (Thomsen, 1986), using parameters G and H. Anisotropy has a greater influence on the description of the velocity for S-wave than with P...
Unknown
Abstracts: CO2 Rock Physics: A Laboratory Study; #90173 (2015)
Helen Yam and Douglas R. Schmitt
Search and Discovery.com
... kilometer of a sedimentary basin. Elastic wave velocity variations and wave strength dampening are observed with phase transitions, signifying...
2015
Quantitative comparison of active and passive surface wave data obtained from distributed acoustic sensing (DAS) and three-component geophones
Koichi Hayashi, Hayato Nonaka, Peter Hubbard, Yasuhiro Yokota, Kensuke Date, Kazuhiko Masumoto, Takaaki Taira, Kenichi Soga
International Meeting for Applied Geoscience and Energy (IMAGE)
... measurements or seismic interferometry, are receiving increased attention since the methods provide S-wave velocity (Vs) profile of the ground non-invasively...
2022
Marine Seismic Sources: Part II: Air-Gun Arrays for Non Experts
Lasse Amundsen, Martin Landrø
GEO ExPro Magazine
..., low-frequency wave starting at T0=7.70 s is called the ground wave because it is closely related to the sediment sound velocity. The lowest frequency...
2010
Depth Imaging Seeing the Invisible
Vetle Vinje
GEO ExPro Magazine
... wave velocity is constant in echo-location. In the real earth velocities may vary from 1,500 m/s to more than 6,000 m/s. The energy does not travel...
2010
Estimating elastic wave velocities, attenuation factors, and their frequency dependency by inverting ultrasonic waveforms
Michel M. Nzikou, Alexey Yurikov, Maxim Lebedev, Boris Gurevich
International Meeting for Applied Geoscience and Energy (IMAGE)
...Estimating elastic wave velocities, attenuation factors, and their frequency dependency by inverting ultrasonic waveforms Michel M. Nzikou, Alexey...
2022
Fracture-Porosity Identification from Anisotropy AVO and Fluid Substitution Modelling in Seismic 2D Data
Septian Prahastudhi, Tenny Octaviani, Ayi Syaeful Bahri, Yulia Putri Wulandari
Indonesian Petroleum Association
... P-wave velocity, S-wave velocity in both dry and wet condition. The anisotropy gradient has been found using anisotropy AVO modeling. The Thomsen...
2012
Quantitative Petrophysical AVO Error Analysis in a Layered Model
Search and Discovery.com
... of the effects of free-surface reflections and mode conversions, calibration without the S-wave velocity information, etc. could affect the AVO...
2013
Abstract: A Stable Criterion for Shear-Wave-Splitting Analysis; #90174 (2014)
Xinxiang Li and Jeff P. Grossman
Search and Discovery.com
...Abstract: A Stable Criterion for Shear-Wave-Splitting Analysis; #90174 (2014) Xinxiang Li and Jeff P. Grossman AAPG Datapages/Search and Discovery...
2014
Abstract: Estimation of Dispersive Parameters of Surface Wave Using the Generalized S Transform; #90187 (2014)
Roohollah Askari and Robert J. Ferguson
Search and Discovery.com
... for the estimation of near surface shear wave velocity. We introduce two cost functions. The first cost function is to estimate an optimum scaling factor...
2014
Abstract: Raypath-Consistent Shear Wave Statics; #90224 (2015)
Raul Cova, David Henley, and Kris Innanen
Search and Discovery.com
... to very low velocity values the magnitude of the S-wave statics is several times larger than the P-wave statics, producing a very destructive effect...
2015
Synthetic Seismograms for PS Seismic Data; #41793 (2016)
Satinder Chopra, Ritesh Kumar Sharma
Search and Discovery.com
.... Recording Shear-Wave Data in P-Wave Seismic Programs, Search and Discovery Article #40701. Fracture Identification and Evaluation Using S Waves, Search...
2016
Time-Lapse Refraction Seismic I: A Complementary Monitoring Method?
Martin Landrø, Lasse Amundsen
GEO ExPro Magazine
... in velocity with depth, they dive into that to generate a head wave or refracted wave the velocity the subsurface and then turn back again, without...
2017
Sediment transport on the shelf margin of the Grand Banks of Newfoundland
J. V. Barrie, M. B. Collins
Atlantic Geology
... density (ps) into this equation, the thresh old velocity (Um for sediment motion is computed as a function. ) of wave period. For a specific water depth...
1989