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The AAPG/Datapages Combined Publications Database
Showing 60,747 Results. Searched 200,293 documents.
Seismic Estimation of Point-Bar Sands Using Simple Modeling Procedures
Robert Dennison
Indonesian Petroleum Association
... and the shale averaged 2.57. In as much as reflection coefficients are computed from acoustic impedances (R.C. = P2V2 - P1V1/P2V2 + P1V1), a substantial...
1984
A geophysical prior knowledge guided semisupervised deep learning framework for AVA inversion
Lei Zhu
International Meeting for Applied Geoscience and Energy (IMAGE)
... coefficients of these models are obtained through the Zoeppritz equations. These reflection coefficients are then convolved with the 23 Hz wavelet...
2024
Stratigraphic Analysis Garden Banks Block 235, Gulf of Mexico
Edwin I. Linares, Abu K. M. Sarwar
GCAGS Transactions
... with the reflection coefficients of the time wedge to produce the apparent time thickness line (the bold diagonal line). The apparent time thickness line...
2005
Deterministic and Statistical Wavelet Processing
Lee Lu
Southeast Asia Petroleum Exploration Society (SEAPEX)
... by the following examples: Example 1 A record of synthetic data representing reflection coefficients is generated (Figure 7a (a)). A non-minimum phase wavelet...
1980
Integrated reservoir characterization of low resistivity thin beds using three-dimensional modeling for natural gas exploration
Lim Yen Jun, Lo Shyh Zung
Geological Society of Malaysia (GSM)
... relationship is generated through conditioned sonic log and velocity information computed. Acoustic impedance and reflection coefficients are computed...
2018
Seismic Modeling of an Early Jurassic, Drowned Carbonate Platform: Djebel Bou Dahar, High Atlas, Morocco (1)
A. EWAN CAMPBELL and JAN STAFLEU
AAPG Bulletin
... of the reflection and transmission coefficients of plane longitudinal and transverse waves: Geophysics, v. 9, p. 485-502. Brechbuler, Y. A., R. Bernascoli, and J.-P...
1992
3-D seismic Data in Delineating Productive Ismay Algal Mounds in Southern Paradox Basin, Utah, By, R.O. Louden, D.D. Lehman, W.E. Johnson and D.L. Edwards, Search and Discovery Article #40048 (2002)
Search and Discovery.com
2002
Visualizing AVAZ Parameter Estimates and Uncertainty, #41571 (2015).
Jon Downton, Dave Gray, Torre Zuk
Search and Discovery.com
.... Sivia, D.S., 1996, Data Analysis, a Bayesian tutorial: Oxford University Press, 208 p. Ruger, A., 2002, Reflection coefficients and azimuthal AVO Analysis...
2015
Interpretation of storage and retrieval major-ion chemistry, with emphasis on significant sulfate and sodium concentrations in the White River watershed, northwestern Nebraska, United States
Jon C. Atkinson
Environmental Geosciences (DEG)
... of the White River that generally lack even small groundwater reservoirs. The soils are compact and clayey, and infiltration is low, hence promoting...
2019
Chapter Five: Reservoir Identification
Alistair R. Brown
AAPG Special Volumes
... of Mexico: The Leading Edge, v. 22, p. 300–309. Ostrander, W. J., 1984, Plane-wave reflection coefficients for gas sands at non-normal angles...
2011
Correlation of the Bishop Ash, a Pleistocene Marker Bed, Using Instrumental Neutron Activation Analysis
G. A. Borchardt , P. J. Aruscavage, H. T. Millard, Jr.
Journal of Sedimentary Research (SEPM)
.... T. Millard, Jr. 1972 Vol. 42 No. 2. (June), Neutron activation analyses confirmed a previous correlation of a white rhyolitic volcanic ash bed...
1972
Repeatability of Three Instruments Used to Determine the Undrained Shear Strength of Extremely Weak, Saturated, Cohesive Sediments
Joseph H. Kravitz
Journal of Sedimentary Research (SEPM)
... rarely exceeds an activity level of 0.41 (White, 1955); however, the samples contain small amounts of vermiculite and illite End_Page 1031...
1970
Abstract: Characterizing Dipping Fractures from P-wave Amplitude Versus Azimuth Studies; #90187 (2014)
Jon Downton and Hampson Russell
Search and Discovery.com
... as a function of dip. The 2nd FC equation (10) is a weighted sum of the w12 and w22 coefficients (equations 19 and 20). For small angles of incidence...
Unknown
3D acoustic-elastic full-waveform inversion and migration of marine VSP data from Norway
Zhaolun Liu, Jrgen Hoffmann, Frederik J. Simons, Jeroen Tromp
International Meeting for Applied Geoscience and Energy (IMAGE)
...-based migration image. The resolution of our shear wave speed (VS ) image is higher than that of the VP image due to the smaller reflection angle of P...
2022
Chapter Eight: Horizon and Formation Attributes
Alistair R. Brown
AAPG Special Volumes
... values at the crest of a reflection with a precision of about a quarter of a millisecond. The horizon attribute extracted at the crestal time carries...
2011
The reflected waves distributed on 3D9C seismic data from ISO media
Yuan Yuan Yue, Zhiwen Deng, Hong Cao, Qianggong Song
International Meeting for Applied Geoscience and Energy (IMAGE)
... is a manifestation of reflection coefficients of SV- and SH-waves. To furtherly illustrate this phenomenon, we calculate the travel time according...
2024
Seismic signatures of pore fluid mobility in heterogeneous reservoirs
Qiuzi Li, Brent Wheelock, Tuan Tran, Fadil Santosa
International Meeting for Applied Geoscience and Energy (IMAGE)
...al and analytical results of reflection coefficients for Third International Meeting for Applied Geoscience & Energy 10.1190/image2023-3908530.1 Page 872 © 20...
2023
High-order viscoelastic prestack seismic nonlinear frequency-dependent inversion method based on scattering matrix
Tianjun Lan, Zhaoyun Zong
International Meeting for Applied Geoscience and Energy (IMAGE)
... reflection coefficients or accurate reflection coefficients are required to make full use of large-angle incident seismic data, thereby improving...
2022
Post Migration Processing of Seismic Data
Dashuki Mohd.
Geological Society of Malaysia (GSM)
... as a convolution of the source wavelet with a series of reflection coefficients. N-l x(n) = r(n) * wen) + n(n) = L r(n)w(n - k) + n(n) (1) k=O n = 0...
1994
Abstract: Azimuthal Fourier Coefficients: A Simple Method to Estimate Fracture Parameters; #90174 (2014)
Jon Downton and Benjamin Roure
Search and Discovery.com
..., the coefficients A, B and C are also a function of the normal and tangential weaknesses. For small angles 2 of incidence, the n = 2 F.C....
2014
Effect of Anisotropy on Apparent Resistivity Curves
Sylvain J. Pirson
AAPG Bulletin
... to the bedding plane: 204 ohm feet Another series of measurements was made at the same location on a laminated fine white sandstone (Benton formation...
1935
Joint inversion of AVO and time-shift for geomechanical strain evaluation in a UKCS field
Samarth Bachkheti, Colin MacBeth
International Meeting for Applied Geoscience and Energy (IMAGE)
... an approximate expression for P-wave reflection coefficients across an interface in weakly anisotropic media with small discontinuities in elastic properties...
2022
Ultrasonic wave velocities measurements and seismic anisotropy at Karari gold deposit: Implications for gold exploration
Andre Eduardo C. M. de Souza, Stephanie Vialle, Andrej Bona
Petroleum Exploration Society of Australia (PESA)
... the reflection coefficients between each rock group. To obtain these reflection coefficients (displayed in Table 1), we considered normalincidence of P...
2019
The Use of Back-Scattered Electron Imaging for the Petrographic Study of Sandstones and Shales
S. H. White, H. F. Shaw, J. M. Huggett
Journal of Sedimentary Research (SEPM)
... and White 1982). The JXA 733, with its small-probe diameter and high-resolution electron optics, especially in the back-scattered mode of operation...
1984
Peusangan–C1 Reef Interpretation with Top Reef Transparent to Seismic
L. B. Hinton, W. S. Atmadja, Suryo Suwito P.
Indonesian Petroleum Association
... shows a sequence of reflection coefficients of some magnitude at the top of the reef, however the reflection amplitude at the top of the reef...
1987