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The AAPG/Datapages Combined Publications Database
Showing 20,860 Results. Searched 200,693 documents.
Abstract: Computing Gridded Traveltimes from the Random Locations of Three Known Points; #90211 (2015)
John Bancroft and Xiang Du
Search and Discovery.com
... the traveltime as an expanding wavefront using an Eikonal equation approach. They may also be computed from raypaths that spr ead across the grid...
2015
Abstract: Prestack Gaussian-Beam Depth Migration in Anisotropic Media; #90211 (2015)
Tianfei Zhu, Sam Gray, and Daoliu Wang
Search and Discovery.com
... to Kirchhoff and wave-equation (WE) migrations: It overcomes the inability of Kirchhoff migration in imaging multiple arrivals while retaining its...
2015
Abstract: Turning-Ray Tomography and Tomostatics; #90224 (2015)
Babatunde Arenrin, Gary Margrave, and John Bancroft
Search and Discovery.com
... (FWI), wave equation datuming and prestack depth migration. In this research, we apply turning-ray tomography to the statics problem of the Hussar 2D...
2015
Abstract: Full-Waveform Inversion by Multi-Scale Temporal Integration; #90255 (2017)
Pan Deng, Wei Huang, Hua-Wei Zhou
Search and Discovery.com
... and satisfies the wave equation through a temporal integrated source wavefield. The new method is validated using the Marmousi synthetic velocity model. Using...
2017
Evaluation of Different Interbed Multiple Attenuation Techniques
Search and Discovery.com
N/A
Multiple Diffractions
Search and Discovery.com
N/A
Recent Applications of Turning
Search and Discovery.com
N/A
Sandstone Reservoir Distribution of Cibulakan Formation Using Seismic Inversion Method: Extended Elastic Impedance (EEI), in Cemara Field, North West Java Basin
M. Rizky Harun, Lutfie Arlan Sandria, Asri Surya Ilhami, Adang Sukmatiawan, M. Razi
Indonesian Petroleum Association
... can also created from the P-wave, S-wave, and density logs for each angle from the scaled reflectivity equation using the following equation: ……. 5...
2013
Porosity and Permeability Estimation Using Acoustic Impedance Inversion and Instantaneous Q Method in Barokah Field, Baturaja Formation, South Sumatera Basin
Diva Alfiansyah, Sulistyo Oetomo Putro, Sismanto, Fatkhul Mu'in
Indonesian Petroleum Association
...), the velocity of P wave of well log data (m/s)and the velocity of the S wave that is derived from the equation of Castagna, et al (1993) to calculate...
2017
Abstract: Seimic Modeling of Geological Sequences and Fluid Filled; #90063 (2007)
Search and Discovery.com
2007
Tomographic waveform inversion (TWI) applied to real seismic data
Jlio Oliva Frigrio, Biondo Biondi
International Meeting for Applied Geoscience and Energy (IMAGE)
.../10.1190/segam2018-2998613.1. Biondi, B., and A. Almomin, 2012, Tomographic full waveform inversion (TFWI) by combining full waveform inversion with wave-equation...
2022
Time Lapse Feasibility Seismic Study of Gas Carbonates Reservoir in Tetra Field, Indonesia
Helmi Indrajaya, Boris Gurevich, Maxim Lebedev, Sigit Sukmono
Indonesian Petroleum Association
... one is when there is no residual gas. The fluid substitution via Gassmann’s equation is used to create the scenarios and shows a significant change...
2014
Simple Models for the Stress-Dependence of Anisotropic Seismic Velocities in Fractured Rock; #120053 (2012)
Richard L. Gibson, Jr. and Kai Gao
Search and Discovery.com
... of the fractures in terms of a phenomenological model that includes a set of cylindrical rods representing asperities. Gangi (1978, 1981) developed...
2012
Abstract: Optimum Aperture Length for Improving Dispersion Curve Analysis in CMP Cross-Correlation of Surface Waves; #90187 (2014)
Roohollah Askari, Robert J. Ferguson, and Helen Isaac
Search and Discovery.com
..., Department of Geoscience, University of Calgary Summary One of the challenges of converted wave processing is to estimate a good near surface shear wave...
2014
Twin River Formation (Redefinition), Northern Olympic Peninsula, Washington
Robert D. Brown, Jr., Howard D. Gower
AAPG Bulletin
... best be seen in the wave-cut bench along the Strait of Juan de Fuca about 2 miles northwest of the mouth of the Pysht End_Page 2499...
1958
Elastic full-waveform inversion using random space shift
Yuhui Yao, Jizhong Yang, Yuzhu Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... by using wave equation traveltime inversion (Ren et al., 2019, Xu et al., 2019, Zhang and Alkhalifah, 2019, Zhang et al., 2019). There are also some...
2022
In Situ Stress Prediction Using Differential Strain Analysis and Ultrasonic Shear-Wave Splitting
B. Widarsono, J. R. Marsden, M. S. King
Indonesian Petroleum Association
... propagations. The measurement of ultrasonic S-wave splitting is essentialy performed by rotating a cylindrical rock specimen containing the stress-relief...
1996
Abstract: Maximum Entropy Acquisition Design and Optimal Interpolation; #90187 (2014)
Mauricio D. Sacchi, Mafijul Islam Bhuiyan, and Nasser Kazemi
Search and Discovery.com
... distribution of sources and receivers that is amenable of reconstruction via known wavefield restoration methods. For this purpose, we propose to maximize...
2014
Direct monitoring of fluid saturation using time-lapse full-waveform inversion
Amir Mardan, Bernard Giroux, Gabriel Fabien-Ouellet, Mohammad Reza Saberi
International Meeting for Applied Geoscience and Energy (IMAGE)
...). The choice of density and Lam´ parameters (l and e µ) is the easiest option as they appear in the wave equation, however the wave equation can...
2022
Abstract: Reservoir Characteristics of a Quaternary Channel: Incorporating Rock Physics in Seismic and DC Resistivity Surveys; #90211 (2015)
Jawwad Ahmad and Douglas Schmitt
Search and Discovery.com
... frame, and φ = porosity. P wave velocity (Vp) can be calculated once ‘Ksat’ is calculated for desired fluid saturation using Gassmann’s equation. Where G...
2015
Qualitative and Quantitative Processing of Side Scan Sonar Data
F.S. Dwan, A.L. Anderson, T.W.C. Hilde
Circum Pacific Council Publications
...: qualitative image analysis and quantitative analysis based on the sonar equation. INTRODUCTION The ocean floor and its characteristics are of importance...
1996
Geotechnical Engineering Link Between Offshore Processes and Hazards: Section 3
Dwight A. Sangrey
AAPG Special Volumes
... of submarine Mississippi Delta sediments under simulated wave loadings: OTC Proc., v. 1, p. 399-412. Fenske, C.W., 1967, Symposium of vane shear...
1981
Abstract: Beam Migration of Canadian Foothills Datasets; #90171 (2013)
Tianfei Zhu, Terrence Krishnasamy, and Daniel Trad
Search and Discovery.com
..., making it relatively inaccurate in geologically complex areas (Hill, 2001). Wave-equation migration, on the other hand, can image multipathing arrivals...
2013
Rock-physics Models for Gas-hydrate Systems Associated with Unconsolidated Marine Sediments
Diana Sava, Bob Hardage
AAPG Special Volumes
... (S)-wave velocities, and to analyze compressional-wave (PP) and converted-shear-wave (PS) reflectivity at the base of hydrate stability zones. Elastic...
2009
Abstract: Numerical Modeling for Different Types of Fractures; #90187 (2014)
Xiaoqin Cui, Laurence R. Lines, and Edward S. Krebes
Search and Discovery.com
... that the non-welded contact interface is not approach to zero. In this paper, seismic wave propagation is affected by properties of the fractures in three...
2014