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The AAPG/Datapages Combined Publications Database
Showing 20,882 Results. Searched 201,044 documents.
EXTENDED ABSTRACT: Sub-basalt imaging from a wave propagation point of view; #90022 (2002)
Richard Hobbs, Francesca Martini
Search and Discovery.com
...EXTENDED ABSTRACT: Sub-basalt imaging from a wave propagation point of view; #90022 (2002) Richard Hobbs, Francesca Martini AAPG Search and Discovery...
2002
Kinematics of Sand Avalanches Using Particle-Image Velocimetry
Michael Tischer , Marcus I. Bursik , E. Bruce Pitman
Journal of Sedimentary Research (SEPM)
... is a necessary condition for the occurrence of these flows. We measured for the first time the surface-velocity field in avalanches propagating at angles...
2001
Abstract: Trace Interpolation and Elevation Statics by Conjugate Gradients; #90172 (2014)
Marcus Wilson, Robert J. Ferguson
Search and Discovery.com
... to the scalar wave equation in homogeneous media (Gazdag and Sguazzero, 1984). To accommodate velocity variation in depth, the algorithm is run recursively...
2014
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
Acoustic approximation VTI reverse-time migration using pseudo-depth mapping method
Xinwen Zhang, Jianping Huang, Zhenchun Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... instead of depth, thus eliminating the inherent ambiguity of analyzing vertical P-wave velocity from surface seismic data. Besides, Alkhalifah (2003...
2023
Implementation aspects of elastic FWI and its application to sparse OBN surveys
Cosmin Macesanu, Faqi Liu, Yi Huang, Hao Hu, Carlos Calderón
International Meeting for Applied Geoscience and Energy (IMAGE)
... the implementation of elastic FWI and showcase results based on a sparse OBN survey conducted in the GOM. Theory The elastic wave equations in a stress-velocity...
2024
High-Resolution Anisotropic Earth Model Building on Conventional Seismic Data Using Full-Waveform Inversion: an Offshore Australia Case Study
Bee Jik Lim, Denes Vigh, Stephen Alwon, Saeeda Hydal, Martin Bayly, Chris Manuel, Dimitri Chagalov, Gary Hampson, Dimitri Bevc
Indonesian Petroleum Association
... the complexity of the overburden consists of several thin multilevel channel systems filled with a combination of anomalously high or low velocity sediments...
2014
Abstract: Near-Surface Volcanic Rocks in the SE Nechako Basin, BC: Results of Interpretation of Seismic Reflection Data using First-Arrival Tomographic Inversion; #90171 (2013)
Nathan Hayward and Andrew J. Calvert
Search and Discovery.com
..., Burnaby, BC, V5A 1S6 Summary Near-surface estimates of P-wave velocity are derived from the tomographic inversion of seismic firstarrivals...
2013
The Developing Role of Analysis in the Design of Floating Production Systems
D. B. Melver, D. Cash
Indonesian Petroleum Association
... with the mathematical expressions for velocity, acceleration and pressure valid only below the still water level. However, extrapolation into the wave crest...
1985
Problems in Reflection Seismology
G. H. Westby
Tulsa Geological Society
... deal primarily with only the longitudinal. 'The velocity of travel of a longitudinal wave in rocks may be represented by the formula where I...
1934
Abstract: Anisotropy Measurements in a Multi-faced Core Sample by using Pulse Transmission Method; #90174 (2014)
Jaime Meléndez Martínez, Douglas R. Schmitt, and Randolph Kofman
Search and Discovery.com
... through a sample is then picked from the recorded waveform. Knowing the length of the sample, the velocity of the wave can be easily calculated. AAPG...
2014
Elastic full-waveform inversion of 4C ocean-bottom seismic data: Model parameterization analysis
Jian Cao, Romain Brossier, Ludovic Mtivier
International Meeting for Applied Geoscience and Energy (IMAGE)
... estimation of the subsurface, i.e. extracting medium shear modulus from the S-wave velocity model. Multi-parameter elastic FWI offers the possibility...
2022
Gaining Insight into Formation Anisotropy Using Full Azimuth Imaging and Analysis Tools
Duane Dopkin, Anat Canning, Philip Neri
Indonesian Petroleum Association
.... REFERENCE Dopkin, D. and Koren, Z. (2009). Seismic Wave Field Decomposition Both Qualifies and Quantifies Velocity Modeling, 3-D Imaging, July 2009. p...
2012
A Robust Gradient for Long Wavelength FWI Updates
Jaime Ramos-Martinez, Sean Crawley, Kathy Zou, Alejandro Valenciano, Lingyun Qiu, Nizar Chemingui, Andrew Long
Petroleum Exploration Society of Australia (PESA)
... dynamic weights in the velocity sensitivity kernel derived from impedance and velocity parameterization of the classical objective function. The new kernel...
2016
Understanding The Mesozoics Beyond Basalt: A Case Study Of Sub-Basalt Imaging
S. Sengupta, S. K. Goswami, G. Menzel-Jones, B. Chowdhury, Artem Sazykin
Indonesian Petroleum Association
..., the diving-wave penetration was limited up to a maximum depth of 1.8 km. To update the deeper sections, a velocity scanning approach, and multiple passes...
2020
Abstract: *Detection of Hydrocarbons from Velocity Logs using the Wavelet Coherence Analysis: A Case Study from Algerian Tight Reservoirs; #91202 (2022)
Said Gaci, Mohammed Farfour, and Saliha Amoura
Search and Discovery.com
..., Algeria 2 Abstract This study presents new insights on investigating hydrocarbon reservoirs using P- and S-wave velocity well logs (Vp and Vs) recorded...
2022
The Geophysical Aspects of Abnormal Fluid Pressures
Edward B. Reynolds, John E. May, Alf Klaveness
Houston Geological Society
... are being processed to generate plots of interval velocity versus depth which grossly approximate velocity surveys or integrated acoustic logs. Lower...
1971
Hydrodynamics and Sedimentary Responses Within the Bottom Boundary Layer: Sabine Bank, Western Louisiana
Daijiro Kobashi, Felix Jose, Gregory Stone
GCAGS Transactions
... to the coast prevailed during fair-weather wave conditions. However, during cold fronts and strong wind regimes, cross-shore velocity components dominated...
2005
Some Simple Devices for the Study of Wave Induced Surges: NOTES
Herbert J. Summers , Harold D. Palmer , David O. Cook
Journal of Sedimentary Research (SEPM)
...Some Simple Devices for the Study of Wave Induced Surges: NOTES Herbert J. Summers , Harold D. Palmer , David O. Cook 1971 Vol. 41 No. 3. (September...
1971
Acoustic/elastic wavefield injection and reconstruction from ocean-bottom data for elastic RTM
Bingkai Han, Weijian Mao, Xiao-Bi Xie
International Meeting for Applied Geoscience and Energy (IMAGE)
... (Figure 3d). In the fluid domain, by injecting acoustic pressure and the vertical particle velocity, the transmitted up-going acoustic wave Ppw...
2024
Multi-Component Seismic (3C) Data Acquisition A Case Study from Oil India Ltd. Operational Area in Upper Assam Basin, #40728 (2011)
K. L. Mandal, A. K. Khanna, Dr. R. Dasgupta
Search and Discovery.com
... that there are distinct S-wave velocity (Vs) anomalies in the Barail sands. Vs generally increases with sand quality. This is an important observation...
2011
Intelligent digital rock physics assisting quantitative seismic interpretation
Zhiyu Hou, Danping Cao, Xinjie Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
... responses and reservoir parameters, but it is difficult for traditional rock physics to build relationship between wave velocity and permeability...
2023
Geological Factors Influencing Porosity Estimates From Velocity Logs
Roberto Sarmiento
AAPG Bulletin
...Geological Factors Influencing Porosity Estimates From Velocity Logs Roberto Sarmiento 1961 633 644 45 5. (May) The close relation between acoustic...
1961
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