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The AAPG/Datapages Combined Publications Database
Showing 19,696 Results. Searched 195,452 documents.
Depth Imaging Seeing the Invisible
Vetle Vinje
GEO ExPro Magazine
... in the model. A numerical solution of the acoustic wave equation is used in Reverse Time Migration and One-way Wave Equation Migration, while...
2010
Fracture-Porosity Identification from Anisotropy AVO and Fluid Substitution Modelling in Seismic 2D Data
Septian Prahastudhi, Tenny Octaviani, Ayi Syaeful Bahri, Yulia Putri Wulandari
Indonesian Petroleum Association
...-wave and s-wave velocity in the dry and wet condition, fracture properties (D) can be found. Thomson parameters obtained from an empirical equation...
2012
Quantitative Petrophysical AVO Error Analysis in a Layered Model
Search and Discovery.com
... for top of layer 6 layers (Table 1). Plane wave denotes the same reflectivities calculated from Zoeppritz equation as in Figure 1. Figure 4: Scaled...
2013
Abstract: Finite-difference Elastic Modelling Below a Structured Free Surface; #90171 (2013)
P. M. Manning
Search and Discovery.com
... are (from Levander, 1988) ∂U ∂U x ⎛ ∂U z ∂U x ⎞ + =0 ⎟ = 0, σ zz = (λ + 2μ ) z + λ ∂z ⎠ ∂z ∂x ⎝ ∂x σ xz = μ ⎜ , with the left equation applying...
2013
TTI Wave-equation Migration of A 3-D Canadian Foothills Dataset
Search and Discovery.com
...TTI Wave-equation Migration of A 3-D Canadian Foothills Dataset TTI Wave-equation Migration of A 3-D Canadian Foothills Dataset Richard Bale...
2013
Abstract: Intrinsic and Apparent Seismic Attenuation in VSP Data; #90211 (2015)
Arnim Haase and Robert Stewart
Search and Discovery.com
..., the stratigraphic Q caused by reverberations between layer interfaces, and a gain component. When comparing results from a 1D wave equation model...
2015
Abstract: Near-Surface Velocity Estimation Using Source-Domain Full Traveltime Inversion and Waveform Inversion; #90319 (2018)
Lu Liu, Bowen Guo, Yi Luo
Search and Discovery.com
... limitaions of ray theory and avoid manual picking, we propose to use wave-equation-based source-domain full traveltime inversion (FTI). This method...
2018
Abstract: Modelling Near-field Effects in VSP-based Q-estimation Part 1: Theoretical Developments; #90171 (2013)
Arnim B. Haase and Robert R. Stewart
Search and Discovery.com
... wave lengths” when describing the far-field distance from a point source. They give an equation for the P-wave potential caused by a point source (Weyl...
2013
Correlation of seismic velocity and mechanical properties of metasandstone from CTW-1 well, Seri Iskandar, Perak, Malaysia
Norsyafiqah Salimun, Abdul Ghani Rafek, Khairul Arifin Mohd. Noh
Geological Society of Malaysia (GSM)
... equation: Velocity = d x t-1 (1) Where, d is the height of the core sample and t is the first (peak) arrival time of the wave. The P-wave velocity...
2019
Fast viscoacoustic forward modeling method based on U-net Fourier neural operator
Wenbin Tian, Yang Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... fractional visco-acoustic wave equation. Diverging from FNO, U-FNO incorporates an additional U-Fourier layer after the conventional Fourier layer...
2023
Abstracts: Plane Wave Reflection and Transmission Coefficients for VTI Media; #90173 (2015)
Ritesh Kumar Sharma and Robert James Ferguson
Search and Discovery.com
... (Tsvankin, 2001). For VTI media the wave equation separates into a coupled pair of the equations for the P-SV waves and into a single equation for the pure...
2015
Oscillation Ripples: DISCUSSION
Cyril Galvin
Journal of Sedimentary Research (SEPM)
...------------------------ MOGRIDGE, G. R., AND KAMPHUIS, J. W., 1973, Experiments on bed form generation by wave action: Proc. 13th Conf. Coastal Engr., p...
1981
Recent Developments in Marine Acquisition and Data Processing Technology to Improve Imaging through Complex Overburdens
Timothy Bunting, Jerry Kapoor, Nick Moldoveanu, Jeremy Browett
GCAGS Transactions
... overburdens and adoption of the full two way wave equation and use of complex earth models for imaging. The combination of these technologies has...
2011
Relative Quantities of Suspension Versus Bed-Load Transport on Beaches
Paul D. Komar
Journal of Sedimentary Research (SEPM)
... (1953b), Caldwell (1956) and Komar and Inman (1970) relating the total sand transport rate to the wave conditions. Equation (3) provides us with an FIG...
1978
Influences of Pore Fluid to Parigi Carbonates Seismic Parameter: A Carbonates Seismic Rock Physics Study
Bagus Endar B. Nurhandoko, John Adler, Usep Mohamad Ishaq, Erwin Riyanto, Mahatman L. Budi, Eko Bambang Supriyanto, Susilowati
Indonesian Petroleum Association
... can be write as : ρ B = (1 − φ) ⋅ ρ m + φ ⋅ ρ f (4) where ρm is matrix density and ρf is fluid density. From equation 2, P-wave velocity can write...
2007
Abstract: Multi-Scale 2D Acoustic Full Waveform Inversion with High Frequency Impulsive Source; #90187 (2014)
Vladimir N. Zubov, Michael P. Lamoureux, and Gary F. Margrave
Search and Discovery.com
...) is examined in the present study, using synthetic data for the acoustic wave equation problem with boundary. Different frequency impulsive sources...
2014
Stepwise Regression in the Earth Sciences: A Coastal Processes Example
James H. Balsillie, William F. Tanner
Environmental Geosciences (DEG)
... included bed slope, wave steepness considerations, the surf similarity parameter, and other parameters in endeavors to “refine” predictive power...
1999
ABSTRACT: Predicting Pressure and Saturation Changes from Elastic Wave Velocities in a CO2-Flooded Coal Bed Methane: A Modeling Study, by Harris, Jerry M., Olusoga Martins Akintunde, Tapan Mukerji, Jaime Urban; #90026 (2004)
Search and Discovery.com
2004
Abstract: Seismic Anisotropy Modeling from Well Log in Talang Akar Formation, South Sumatra, Indonesia, by Thariq Guntoro, Intan Andriani Putri, and Dwa Desa Warnana, #90188 (2014)
Search and Discovery.com
2014
Impact of Shear Velocity Estimation on Wellbore Stability, #42351 (2019).
Charles Otoghile, Chima Cyril Udeze
Search and Discovery.com
... analyzed using Greenberg and Castagna and Mudrock line equations. The aim is to determine how reliable the Greenberg and Castagna equation...
2019
Frequency-dependent reflection characteristics of single thin layer and waveform inversion
Zhengyang Kuai, Danping Cao, Chao Jin
International Meeting for Applied Geoscience and Energy (IMAGE)
... obtained from the propagation matrix and eigenvector matrix: (1) Q=D-1 D2 E2 D-1 D3 1 2 QUU QUD (2) Q z1 ,z2 = QDU QDD Q in Equation 1 is the wave...
2023
Correlation of seismic velocity and density of metasandstone from Kati Formation, Seri Iskandar, Perak, Malaysia
Norsyafiqah Salimun, Abdul Ghani Rafek, Khairul Arifin Mohd. Noh
Geological Society of Malaysia (GSM)
... velocity measured and tabulated in Table 1. The wave velocity calculated using the following equation: Velocity = d x t-1 ----------------------- (1...
2018
Estimation of Gas Reservoir Boundary by AVO Analysis
Alfian D. Santoso, L. Hendrajaya, F. Makhruf, Purwoko, S. Ardisasmita
Southeast Asia Petroleum Exploration Society (SEAPEX)
... equation in order to clarify the relationship between reflection coefficient the incident angle of P wave. The equation is written as follows (Verm...
1996
Viscoelastic anisotropic seismic wave modeling using recursive convolution method and curvilinear collocated finite difference method for different boundaries
Chao Jin, Bing Zhou
International Meeting for Applied Geoscience and Energy (IMAGE)
..., UAE Summary We proposed a generalized viscoelastic anisotropic wave equation based on the General Maxwell Body, which can accommodate various medium...
2023
Abstract: Joint PP and PS AVO Inversion Based on Zeopprtiz Equations; #90171 (2013)
Tiansheng Chen and Xiucheng Wei
Search and Discovery.com
... to the linearized approximations of PP and PS is first order equation of Taylor series, so equation 4 can be generalized to: b b y = a pp x pp + c pp (PP wave...
2013