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The AAPG/Datapages Combined Publications Database
Showing 19,842 Results. Searched 196,437 documents.
Anisotropy Parameter Inversion from Sonic and Density Logs in Horizontally Transverse Isotropic Media
Joseph Kremor, Khalid Amrouch
Australian Petroleum Production & Exploration Association (APPEA) Journal
... compressional wave velocity in the direction of the symmetry plane of isotropy can be determined, as can the compressional wave velocity...
2017
Abstracts: Q Determination, Corner Frequency and Spectral Characteristics of Microseismicity Induced by Hydraulic Fracturing; #90173 (2015)
David W. Eaton
Search and Discovery.com
... is given by where Vs is the shear-wave velocity of the medium. This relation assumes that after nucleation the rupture front propagates across...
2015
Abstracts: Application of Neural Network Analysis and Post-Stack Inversion - Case Studies in Alberta; #90173 (2015)
Somanath Misra and Satinder Chopra
Search and Discovery.com
... for the analysis. The neural network is trained and validated for estimating P-wave velocity and density over the zone interest. The estimated P-wave...
2015
Beach Foreshore Sedimentology and Morphology in the Apostle Islands of Northern Wisconsin
Wayne N. Engstrom
Journal of Sedimentary Research (SEPM)
... on the basis of empirical considerations into which values for fetch, wind velocity and wind duration are read to determine the significant wave height...
1974
New Jersey Continental Shelf Near Bottom Current Meter Records and Recent Sediment Activity
Charles E. McClennen
Journal of Sedimentary Research (SEPM)
... of the surface sand cover on the shelf. In d termining the relative importance of wave vs. current activity the true value of the critical erosion velocity...
1973
Velocity Model Building Using Tilted Orthorhombic Depth Imaging for Full Azimuth Seismic Data
Yunfeng (Fred) Li, Qiaofeng Wu, Chuen-Song Chen
GCAGS Journal
...Velocity Model Building Using Tilted Orthorhombic Depth Imaging for Full Azimuth Seismic Data Yunfeng (Fred) Li, Qiaofeng Wu, Chuen-Song Chen...
2013
Chapter 4: Synthetic Seismograms and Their Uses
Tom Wittick
North Texas Geological Society
... of rock that is “averaged” by the seismic wave. For detail rock composition within this volume there is limited seismic resolution. The velocity...
1992
Synthetic Seismograms and Their Uses
Abilene Geological Society
... resolution. The velocity of propagation is established by the bulk and shear moduli sensed by the seismic wave for this volume. Such volumes...
1993
AVO Response for Gas Sands of the Monserrate Formation, Upper Magdalena Valley of Colombia
C.J. Dueñas, M. G. de Freitas, A. Mantilla
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... step consists of well log-based AVO modeling using the Greenberg & Castagna equation to model the shear wave velocity (Vs) from P-wave logs; Gassmann...
2006
Two-dimensional seismic refraction tomography of a buried bedrock valley at Hallsands beach, Devon, United Kingdom
Eric B. Avalos, David H. Malone, Eric W. Peterson, William P. Anderson, and Roland W. Gehrels
Environmental Geosciences (DEG)
... (2.5 ft). Lines were run at low tide to minimize noise from wave action. Data Processing First breaks were manually picked, and velocity models...
2016
Estimation of Seismic Attenuation (Q): More Insight from Zero-Offset VSP
Mohammad Risyad
Indonesian Petroleum Association
... contribute to seismic wave attenuation, such as: velocity anomaly (seismic anisotropy, which is not included in this study due to lack of S-wave data...
2018
Abstract: AVAZ Inversion for Fracture Orientation and Intensity: a Physical Modeling Study; #90187 (2014)
Faranak Mahmoudian and Gary F. Margrave
Search and Discovery.com
... (Crampin, 1981). Using P-wave NMO velocity variation with azimuth (VVAZ), fracture orientation is considered to be in the direction of the fast P-wave...
2014
Seismic Geomechanics of Mud Volcanoes; #70261 (2017)
Rashad Gulmammadov, Stephen Covey-Crump, Mads Huuse
Search and Discovery.com
... (SCB), a neotectonic Tertiary basin (Fig. 1). The principal objective of the study is to understand the extent of using P-wave velocity in geomechanical...
2017
Prestack Seismic Data Inversion for Shale Gas Reservoir Characterization in China
Gang Yu, Yusheng Zhang, Ximing Wang, Xing Liang, Uwe Strecker, Maggie Smith
Unconventional Resources Technology Conference (URTEC)
... orientation and anisotropy. Fracture strike and P wave anisotropy were calculated using the RMO updated sector velocity fields in elliptical velocity...
2016
A Comparison of Core and Crosswell Seismic Data from a Carbonate Reservoir
Karla E. Tucker Paul M. Harris
West Texas Geological Society
... directly to the seismic data. The apparent resolution in the P- and S-wave reflection images of Figure 6 is quite striking; the wavelengths...
1998
A Comparison of Core and Crosswell Seismic Data from a Carbonate Reservoir
Karla E. Tucker, Paul M. Harris
CSPG Special Publications
... resolution in the P- and S-wave reflection images of Figure 6 is quite striking; the wavelengths are on the order of 9 to 13 ft(3–4 m). In contrast...
1997
Velocity-depth trends in Mesozoic and Cenozoic sediments from the Norwegian Shelf
Vidar Storvoll, Knut Bjrlykke, Nazmul H. Mondol
AAPG Bulletin
... for shear-wave velocity prediction: Geophysical Prospecting, v. 44, p. 687717.Young, A., and R. McIver, 1977, Distribution of hydrocarbons between oils...
2005
True Hybrid 3D
Jeroen Hoogeveen, Kristen Berli, Lars Ivar Leivestad, Tor Åkermoen, Geoex MCG
GEO ExPro Magazine
... with associated velocity anomalies. All those issues have been addressed and significantly improved through the hybrid LumiSeisTM solution used to acquire...
2021
Low-Energy Seismic Survey of Quaternary Materials, Rocky Mountain National Park, Colorado
William W. Locke
Rocky Mountain Association of Geologists
... seismic refraction and reflection techn~ques in this study. In slmple refraction seismology only the first arWhen the flrst wave to arrtve IS plotted...
1987
Abstract: Spectral-Velocity Prediction of Geological Section Types and Reservoir Properties (SVP-Technology), by Mikhail Afanasyev; #90163 (2013)
Search and Discovery.com
2013
Exploration and Development based on RTH Technology and AI
Gennady Erokhin, Mariia Erokhina, Kirill Safran, Alexandre Iakovlev
Unconventional Resources Technology Conference (URTEC)
... behavior of two vectors: the velocity vector in forward wave and the velocity vector in time-reversed backward scattering wave provides detailed...
2023
Geophysical Investigation for Groundwater Exploration at UKM's Kuala Pilah Matriculation Centre, Negeri Sembilan
Abdul Rahim Samsudin, Abdul Ghani Rafek, Umar Hamzah
Geological Society of Malaysia (GSM)
... as velocity of the seismic p-wave travelling within the layered materials. The seismic p-wave passing through a water saturated layer would normally have...
1996
Predicting uniaxial compressive strength using Support Vector Machine algorithm
Hafedz Zakaria, Rini Asnida Abdullah, Amelia Ritahani Ismail, Mohd For Mohd Amin
Geological Society of Malaysia (GSM)
... that has been set up could be used repeatedly for other correlation problems. Keywords: unconfined compressive strength, dry density, sonic wave velocity...
2019
Constraints on Eolian Grain Flow Dynamics Through Laboratory Experiments on Sand Slopes
Richard R. McDonald , Robert S. Anderson
Journal of Sedimentary Research (SEPM)
..., and then steadily decreased to 10 cm/s towards the tail of the flow. The longitudinal velocity gradients created considerable longitudinal strain rates...
1996
Preliminary Results of a Passive Seismic Investigation in the Nechako Basin for Mineral and Petroleum Exploration
Melvyn Best
Search and Discovery.com
.... Specifically, waveforms from distant earthquakes will be used to resolve the shear-wave velocity structure beneath the Nechako Basin and provide...
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