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Showing 20,860 Results. Searched 200,756 documents.
Unusual Nuclei in Oolites from the Morrow Group Near Fayetteville, Arkansas
Lloyd G. Henbest
Journal of Sedimentary Research (SEPM)
.... The oolite grains are generally as closely packed as they can lie. The majority of the oolite grains are spherical or nearly spherical, but a considerable...
1945
Development of Vertical Cable Seismic System
Eiichi Asakawa, Fumitoshi Murakami, Yoshihiro Sekino, Taku Okamoto
Indonesian Petroleum Association
... surrounded by complex seabottom feature like volcanic caldera. Some hydrothermal vents form cylindrical like chimney structures. In these circumstances...
2012
Seismic monitoring using compact phased arrays: CO2 sequestration monitoring
Jian Zhang, Elige B. Grant, Paul A. Nyffenegger, Mark A. Tinker, Kevin D. Hutchenson, Don C. Lawton
International Meeting for Applied Geoscience and Energy (IMAGE)
... volumetric phased array. The design is a uniform cylindrical array of radius r from the central column, with sensor spacing d1 within a layer and d2 between...
2022
ABSTRACT: Interplay between Tectonics and Sedimentation in the Lower Pliocene Fill of the Crotone Basin, Southern Italy; #90013 (2003)
ZECCHIN MASSIMO, DONATELLA MELLERE, FRANCESCO, MASSARI, GIACOMO PROSSER
Search and Discovery.com
... of the sequence is formed by a thin, up to 10 m thick, lagoonal mudstone interval. Sand-wave and lagoonal deposits are overlain by a shoreface...
2003
Physics-based preconditioned multidimensional deconvolution in the time domain
David Vargas, Ivan Vasconcelos, Matteo Ravasi, Nick Luiken
International Meeting for Applied Geoscience and Energy (IMAGE)
...-contaminated data. INTRODUCTION To formally describe wavefield propagation between two observation points in terms of data measured at such locations...
2022
Elastic Wave Propagation in Fractured Media Using the Discontinuous Galerkin Method; #41955 (2016)
Jonás D. De Basabe, Mrinal K. Sen
Search and Discovery.com
...., K.T. Nihei, and L.R. Myer, 1996, Numerical Simulation of Elastic Wave Propagation in Fractured Rock with the Boundary Integral Equation Method: Journal...
2016
Supercomputers for Beginners: PART III: GPU-Accelerated Computing
Lasse Amundsen, Martin Landrø, Børge Arntsen
GEO ExPro Magazine
..., and secondly an increase in the volume of acquired seismic data to be imaged. Elastic migration, based on the elastic, anisotropic wave equation...
2016
Automated velocity model building using Fourier neural operators
Guanghui Huang, Sean Crawley, Ramzi Djebbi, Jaime Ramos-Martinez, Nizar Chemingui
International Meeting for Applied Geoscience and Energy (IMAGE)
... and Shragge (2021) and Li et al. (2022) used them to solve the acoustic wave equation. One of main advantages of such operators...
2023
A Comparative Study of Wave Equation Multiple Suppression to Conventional Tau-p Deconvolution and Radon Multiple Attenuation Methods
Kriyanti Setiyono, Ken H. Matson
Indonesian Petroleum Association
...A Comparative Study of Wave Equation Multiple Suppression to Conventional Tau-p Deconvolution and Radon Multiple Attenuation Methods Kriyanti...
2000
Hydrocarbon Expression on Low-Impedance AVO: A Phenomenon of Amplitude Reversal
W. Waluyo
Indonesian Petroleum Association
.... In the case of normal incidence, there is no converted S-wave; therefore, the valid expression is shown in equation (1): Where: Z2: acoustic...
2002
Foundation Settlement Determination: A Simplified Approach; #70256 (2017)
O. O. Adewoyin, M. Omeje, E. S. Joel, O. T. Kayode
Search and Discovery.com
...). The shear modulus on the other hand relates with shear wave velocity as expressed in equation (2). That is, Vs 2 g (2) Where g...
2017
The Effect of Gravitational Compaction on the Structure of Sedimentary Rocks
Hollis D. Hedberg
AAPG Bulletin
... of uniformity. Theoretically, the size of grain should not affect porosity. A mathematical calculation shows that a sand of spherical grains 1 mm...
1926
Abstracts: Attenuating 2D Noise in a 3D World; #90173 (2015)
David C. Henley
Search and Discovery.com
... of Calgary, Calgary, AB, Canada [email protected] Summary Coherent seismic wave modes generated by artificial seismic sources are almost always present...
2015
Abstracts: Challenges and Solutions in Locating and Interpreting Microseismic Events from Surveys in the Horn River Basin; #90173 (2015)
Ulrich Zimmer
Search and Discovery.com
... (Figure 1 (right)) includes the relatively homogenous Fort Simpson followed by the Muskwa and Otter Park shales that are higher in P- and S-wave...
2015
SYNTHETIC SEISMOGRAMS
Search and Discovery.com
N/A
Estimations of Porosity and Permeability Model on Carbonate Reservoir Using Cross-Plot Analysis and Acoustic Impedance Inversion in "Gandhi" Field, Gumai Carbonate Formation, Sunda Basin
Sandy Indra Purwagandhi, Indah Islamiaty, Sismanto, Arif Yondo
Indonesian Petroleum Association
... is based on linear equation which is obtained from the cross-plot relationship of both values. Whereas the relationship between permeability model...
2015
Multicomponent Seismic Studies of the Gas-hydrate System at the Storegga Slide
Stefan Bunz, Jurgen Mienert, Karin Andreassen
AAPG Special Volumes
..., bandpass filtering of 3110 Hz, prestack wave-equation datuming, true amplitude recovery, frequency-renumber (F-K) filtering, predictive deconvolution...
2009
A Preliminary Study on the Dielectric Properties of a Malaysian "Rock" Saturated with Water and Crude Oil
S. Ibrahim, A. H. Shaari, K. Khalid
Geological Society of Malaysia (GSM)
... incontact with the short circuit. The incident wave travelling in the positive Z direction and the reflected wave combined to form standing waves...
1984
Selective Longshore Transport Rates of Different Grain-size Fractions within a Beach
Paul D. Komar
Journal of Sedimentary Research (SEPM)
... flux of the waves, (ECn)b, evaluated at the breaker zone, and the angle of wave breaking, b, through the equation It = 0.77Pl = 0.77(ECn)bsin bcos b. (3...
1977
An analytical model for squirt flow and viscous shear relaxation in porous rocks
Yury Alkhimenkov
International Meeting for Applied Geoscience and Energy (IMAGE)
... wave dispersion and attenuation due to squirt flow and viscous shear relaxation mechanisms. The results from the analytical model are compared to a 3-D...
2023
Abstract: Q Effects on Thin-bed AVO/AVF Analysis; #90224 (2015)
Wenyong Pan and Kris Innanen
Search and Discovery.com
... on the Zoeppritz equations and their solutions and they describe the transmission and reflection when plane wave impinging upon one single interface which...
2015
Upper Devonian paleoenvironmental, diagenetic, and tectonic enigmas in the western Appalachian Basin: new discoveries and emerging questions associated with the Frasnian-Famennian boundary and end-Devonian disturbances in central Ohio
David R. Blood, Gordon C. Baird, Erika M. Danielsen, Carlton E. Brett, Joseph T. Hannibal, Gary G. Lash
Ohio Geological Society
..., storm-wave impingement along substrates, and occurrence of>maximally organic-rich deposits over widespread disconformity surfaces. In contrast...
2019
Ecological interactions between Rhipidomella (Orthides, Brachiopoda) and its endoskeletobionts and predators from the Middle Devonian Dundee Formation of Ohio, United States
Rituparna Bose, Chris Schneider, P. David Polly, Margaret M. Yacobucci
PALAIOS
...-energy shelf with intervals of decreased energy and occasional storm events. Most of the Dundee Formation was deposited below normal wave base...
2010
Abstract: Practical Applications of Seismic Anisotropy; #90187 (2014)
Philip Wild
Search and Discovery.com
... these slowness values are inverted by solving the P-wave anisotropy velocity equation (Thomsen 1986) to yield terms for the anisotropy (Figure 4...
2014
Effect of High-Pressure Deformation on Permeability of Ottawa Sand
Mark D. Zoback , James D. Byerlee
AAPG Bulletin
...., A. Nur, and R. L. Kovach, 1973, Compressional and shear wave velocities in granular materials to 2.5 kilobars: Jour. Geophys. Research, v. 78, p...
1976