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The AAPG/Datapages Combined Publications Database
Showing 58,753 Results. Searched 195,354 documents.
Lithology Identification Using Amplitude Variations with Offset: Examples from South Sumatra
Soman Chacko
Indonesian Petroleum Association
... Sumatra. BORTFELD, R, 1961. Approximations to the reflection and transmission coefficients of plane longitudinal and transverse waves. Geophysical...
1986
Abstract: Seismic Implications of Moveable Fluids; #90254 (2016)
Robert W. Wiley, Peter Wilson, Scott Peters
Search and Discovery.com
...’s reflection coefficients and FDV in selected layers...
2016
AVO Analysis of a Pennsylvanian Age Channel Sandstone in the Arkoma Basin, Oklahoma
Eric Kubera
Oklahoma City Geological Society
... for this dataset is shown in Figure 7. On the color scale, red and yellow correspond to positive normal incidence reflection coefficients, and white...
1997
Abstract: AVO Theory for Large Contrast Elastic and Anelastic Targets in Pre-Critical Regimes; #90187 (2014)
Kris Innanen
Search and Discovery.com
... to mode conversions, i.e., the θ dependence of RPS; 2. The importance of the number VP/VS=2 to all elastic reflection coefficients; 3. Wave scattering...
2014
Abstracts: Time-lapse Differential AVO: Reflection Coefficient at Fluid-fluid Boundary; #90173 (2015)
Jinfeng Ma
Search and Discovery.com
... in the reservoir. 4D differential reflection coefficients will be mainly determined by fluid-fluid reflection coefficient part of Bortfeld’s approximation...
2015
Abstracts: On the Extraction of Seismic AVF Information and the Inversion of Anelastic Reflectivity; #90173 (2015)
Chris Bird, Kristopher Innanen, Laurence Lines
Search and Discovery.com
...) and linearize (assuming small aQ and aC) to obtain the following expression for anelastic reflection coefficients 1 1 (5) R( ) aQ F ( ) aC 2 4...
2015
An Analysis of a Seismic Reflection from the Base of a Gas Hydrate Zone, Offshore Peru (1)
JOHN J. MILLER , MYUNG W. LEE , and ROLAND VON HUENE
AAPG Bulletin
... OF REFLECTION COEFFICIENTS The reflection coefficient of the sea floor (Rc[sf]) was determined from the ratio of the amplitude of the sea floor...
1991
Spherical-Wave Computational AVO Modelling in Elastic and Anelastic Isotropic Two-Layer Media; #41564 (2015)
Arnim B. Haase, Charles P. Ursenbach
Search and Discovery.com
... are investigated. These responses are computed by utilizing Zoeppritz reflection coefficients and the Weyl/Sommerfeld-integral. Spherical-wave depth dependence...
2015
Damped least squares-based deterministic PP wave and SH-SH wave joint inversion method
Ying Lin, Guangzhi Zhang, Baoli Wang, Siyuan Chen, Minmin Huang
International Meeting for Applied Geoscience and Energy (IMAGE)
... sandstone. The top side of Figure 1 displays the PP wave reflection coefficients after P-wave velocity, S-wave velocity and density disturbance. The SH-SH...
2023
Quantitative Petrophysical AVO Error Analysis in a Layered Model
Search and Discovery.com
...). Then seismic amplitudes from top of layer 6 were calibrated and compared to the plane-wave reflection coefficients (Figures 3 and 4). Figure 3 and 4 shows...
2013
Seismic Rock-Property Transforms for Estimating Lithology and Pore-Fluid Content, by Haitao Ren, Fred J. Hilterman, Zhengyun Zhou, and Mritunjay Kumar, #40224 (2006).
Search and Discovery.com
2006
Chapter 2: Basics of Reflection Seismology that Relate to Seismic Stratigraphy
Tom Wittick
North Texas Geological Society
.... Reflection Coefficients When sound impinges on an interface of two materials which have different acoustic impedance values a portion of the sound...
1992
Basics of Reflection Seismic Technology
Abilene Geological Society
... the seismic response. Reflection Coefficients When sound impinges on an interface of two materials which have different acoustic impedance values...
1993
Use of Windowed Seismic Attributes in 3D Seismic Facies Analysis and Pattern Recognition
David C. Carter
Indonesian Petroleum Association
... such an attribute confined by a small window above or below a mapped sequence boundary or downlap surface, it is possible to directly image reflection...
1996
Chapter 8: Amplitude Versus Offset
Tom Wittick
North Texas Geological Society
... a polarity opposite to the synthetic seismogram. Class 2 anomalies have very small reflection coefficients at normal incidence. At small incidence angles...
1992
Amplitude Versus Offset
Abilene Geological Society
... very small reflection coefficients at normal incidence. At small incidence angles they cannot be seen above the noise level on a seismic section...
1993
Abstract: Spherical-Wave AVO Modelling in VTI Media; #90211 (2015)
Arnim Haase and Charles Ursenbach
Search and Discovery.com
.... Previous work by the authors involved using isotropic plane-wave reflection coefficients together with the Weyl integral to compute isotropic spherical...
2015
Improved TOC and Lithology Prediction for Wolfcamp Shales Using AVO Attribute Analysis
Jaewook Lee, Un Young Lim, David Lumley
Unconventional Resources Technology Conference (URTEC)
... (A, B, C) terms from the modeled reflection coefficients. Our results show that the C term can serve as a good lithology indicator because...
2020
Abstracts: A Decomposition of RP into Contributions from single-parameter Reflectivities; #90173 (2015)
Kristopher A. Innanen
Search and Discovery.com
... from small to large angle. Introduction Practical inversion of amplitude information in reflection seismic data (e.g., Castagna, 1993; Downton...
2015
Mapping Stratigraphic Traps with Seislog
Roy O. Lindseth
Indonesian Petroleum Association
... velocities (and the effects of density) of the same sedimentary section. The sonic log and the related set of reflection coefficients, ignoring density...
1977
Abstract: Surface Modification of Venus as Inferred from Magellan Observations of Plains and Tesserae, by R. E. Arvidson; #91012 (1992).
Search and Discovery.com
1992
Experience with Seismic Lithology (AVO) in Central Sumatra
Jeff Wright, Isdjulaedi Bakri, Budi Subiyanto
Indonesian Petroleum Association
... model shows a small decrease with offset while the gas sands show strongly increasing reflection coefficients as the angle of incidence changes from 5...
1990
Seismic Evidence for Widespread Possible Gas Hydrate Horizons on Continental Slopes and Rises
Thomas H. Shipley, Mark H. Houston, Richard T. Buffler, F. Jeanne Shaub, Kenneth J. McMillen, John W. Ladd, J. Lamar Worzel
AAPG Bulletin
... coefficients, reflection polarity, and pressure-temperature relations all support the identification of the anomalous reflections as the base of gas...
1979
Abstract: Recovering Low Frequencies for Impedance Inversion by Frequency Domain Deconvolution; #90224 (2015)
Sina Esmaeili and Gary Frank
Search and Discovery.com
.... To calculate the acoustic impedance instead of using the impedance to compute reflection coefficients in equation 3, it is possible to use reflection...
2015
Delineation of the Reservoir by Seismic Methods: Chapter 3
Roberto Sarmiento
AAPG Special Volumes
... events; and (4) reduction of the trace to a relatively small number of spikes with amplitudes and polarities defined by the reflection coefficients...
1989