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Showing 20,858 Results. Searched 200,619 documents.
Parameters Influencing Porosity in Sandstones: A Model for Sandstone Porosity Prediction
M. Scherer
AAPG Bulletin
... of accuracy. Th equation is valid for sandstones older than 3 Ma with little or no cement, no leaching, depth of burial in excess of 500 m, and little...
1987
Synthetic-data-driven deep learning method for elastic parameter inversion
Shuai Sun, Luanxiao Zhao, Huaizhen Chen, Zhiliang He, Jianhua Geng
International Meeting for Applied Geoscience and Energy (IMAGE)
... and randomly combine to form a series of reflection coefficient sequences, and synthesize pre-stack AVO gathers using the Zoeppritz equation. The generative...
2023
Acoustic approximation VTI reverse-time migration using pseudo-depth mapping method
Xinwen Zhang, Jianping Huang, Zhenchun Li
International Meeting for Applied Geoscience and Energy (IMAGE)
...), we derive the wave equation of VTI medium in Pseudo-Depth domain method. Theory The review of RTM theory The core of RTM is time consistency...
2023
Granite and Limestone Velocity Determinations in Arbuckle Mountains, Oklahoma
B. B. Weatherby, W. T. Born, R. L. Harding
AAPG Bulletin
... the longitudinal wave velocity in the rod and the density of the material, the value of Young's modulus may be found from the relationship [EQUATION] Where E...
1934
Lithology Discrimination and Pore-Fluid Detection Using 3D Pre-Stack Simultaneous Inversion: A Case Study at Gumai Formation, Jambi Sub-Basin, South Sumatra
Widia Anggraeni, Mawar Indah Nursina, Andri Syafriya, Bagus Sapto Mulyatno, Muh Sarkowi
Indonesian Petroleum Association
... for the reflection compressional wave in a form that comprises three terms; density, P-wave velocity, and S-wave velocity. The equation reads as follows: R...
2018
Improved subsalt imaging in Brazil Campos basin Cascaded application of hybrid interbed demultiple, P- and S-salt velocity joint migration, and subsalt converted wave suppression
Riaz Alai, Faqi Liu, Darrell Armentrout, David Brookes, Terry Johnson, Milos Cvetkovic, Gundogan Coskun, Shah Sulaiman, Kien Kok Lee, Afiq Mokhtar, Christopher Lee Slind, Hafizan Wahab, Wan Ching Low, Ali Andrea B. Hashim
International Meeting for Applied Geoscience and Energy (IMAGE)
... Abstracts, 1–5, doi: https://doi.org/10.1190/segam2012-0549.1. Jakubowicz, H., 1998, Wave equation prediction and removal of interbed multiples: 68th...
2022
Rock-Fluid Interaction Impact on Geomechanical and Acoustic Properties in Shale Reservoirs: Anisotropic Grain Contact Adhesion Model
Binh T. Bui, Azra N. Tutuncu
Unconventional Resources Technology Conference (URTEC)
... in reservoir engineering studies, the rock-fluid interactions play a significant role in deformation, failure and wave propagation behavior in the tight...
2014
Physical Basis of Reflection Seismology
Bruce S. Hart
Special Publications of SEPM
... and S wave) seis ic data. Changes in fluid content are exploited by 4-D seis ology (Chapter 6) . So eti es an e pirical equation known as the Wylie...
2000
Least-squares non-stationary triangle smoothing
Reem F. Alomar, Sergey Fomel
International Meeting for Applied Geoscience and Energy (IMAGE)
... smoothing in the shaping regularization framework within the plane-wave destruction algorithm (Fomel, 2002). Non-stationary smoothing applications improve...
2022
A Reply to Porter's Review
John Morton
Petroleum Exploration Society of Australia (PESA)
... in saturation equations such as the Simandoux (1963) equation currently in vogue with operating companies and the cation exchange capacity (CEC) used...
1990
-- no title --
Ehsan, Athar
Search and Discovery.com
..., 2017). The following are the cons of using the regular scheme: regular coarse grids results into inaccurate solution of the wave equation; also...
Unknown
Abstract: 3D Time Domain Full Waveform Inversion Based on Multiscale Adapted Variable Grid Method Case Study Majunga Basin East African Coast; #91204 (2023)
Mukiibi Ssewannyaga Ivan, Jian-Ping Huang, Zi-Ying Wang, Jidong Yang, Jin Keji
Search and Discovery.com
... grids results into inaccurate solution of the wave equation; also it results into redundancy mainly in the deep high velocity zones resulting...
2023
Advanced Approach Toward Understanding Geologically Complex Area Using MDRS (Multi-Dip CRS): A Case Study
Naoshi Aoki, Shogo Narahara, Akihisa Takahashi, Tsukasa Nishiki
Indonesian Petroleum Association
... be represented by the following equation: 2 ⎛ ⎞ 2 sin α T (x m,h) = ⎜ T0 + (x m − x 0) ⎟ ⎜ ⎟ v0 ⎝ ⎠ 2 2T cos α , + 0 K N (x m − x 0) 2 + K NIP h 2 v0 2...
2011
Azimuthal Velocity Analysis of 3-D Pre-Stack Seismic Data for Fracture-Induced Anisotropy in the Altamont-Bluebell Field
Khaled Al Dulaijan, Gary Margrave
Unconventional Resources Technology Conference (URTEC)
... of such reservoirs. Azimuthal variations of P-wave velocities can be a valuable tool for information related to fractures. Therefore, this paper utilizes...
2016
Abstract: Exact, Linear and Nonlinear AVO in Terms of Poroelastic Parameters; #90187 (2014)
Steven Kim and Kris Innanen
Search and Discovery.com
... Innanen, University of Calgary, Calgary, Alberta, Canada Summary AVO is a tool that can model amplitudes of wave signatures that reflect across...
2014
Deep learning Laplace-Fourier full-waveform inversion with virtual supershot gathers
Lei Fu, Daniele Colombo, Weichang Li, Ernesto Sandoval-Curiel, Ersan Turkoglu
International Meeting for Applied Geoscience and Energy (IMAGE)
... constant density acoustic wave equation in the time domain is given by [∇2 − 1 𝜕2 𝑐(𝒙)2 𝜕𝑡 2 ] 𝑝(𝒙, 𝑡) = 𝑓(𝒙, 𝑡) (1) where...
2022
Obtaining Low Frequencies for Full Waveform Inversion by Using Augmented Physics
Eldad Haber, Eran Treister, Elliot Holtham
Petroleum Exploration Society of Australia (PESA)
... of the Helmholtz equation (in frequency), or the wave equation (in time). The data fitting requires some optimization algorithm, typically some descent algorithm...
2016
Analysis of geologic structures using deep sonic imaging
Nobuyasu Hirabayashi, Leon Dahlhaus, Rajeev Kumar, Jeroen Jocker, Erik Wielemaker, Manish Lal Khaitan, Charles Naville
International Meeting for Applied Geoscience and Energy (IMAGE)
... used in stacking where Ns = N/2 or N/4, ∆θ is the azimuth step of receiver, and θrb is the relative bearing of the tool. Waveforms given by equation 3...
2024
Prediction and attenuation method of surface-related multiple based on characteristic reflector
Jian Xiang, Huazhong Wang, Chengliang Wu
International Meeting for Applied Geoscience and Energy (IMAGE)
... streamers. In the case of known background velocity and subsurface reflectivity, SRMs can be predicted through wave equation modeling (Pica et al...
2024
Velocity continuation with Fourier neural operators for accelerated uncertainty quantification
Ali Siahkoohi, Mathias Louboutin, Felix J. Herrmann
International Meeting for Applied Geoscience and Energy (IMAGE)
... by linearizing the nonlinear relationship between shot records and the squared-slowness model, governed by the wave-equation. In its simplest acoustic...
2022
Hybridised Weighted Boot-Strap Differential Semblance
Hamish Wilson, Lutz Gross
Petroleum Exploration Society of Australia (PESA)
... simplification of the Zoeppritz equation (Shuey, 1985) where the fitting parameters in the trend were found through the minimisation of the trend model...
2016
Analytical Method to Accurately Estimate Overpressure Magnitude: The Case Study from Indonesia's Tertiary Basins
Agus M. Ramdhan, Lambok M. Hutasoit, Arifin
Indonesian Petroleum Association
... (1975) introduced empirical equation to estimate effective stress from the sonic log as illustrated in Figure 1 by using the following equation...
2021
Application of Robust Noise Reduction on a Land 3D Seismic Data
Agus Abdullah, Jesse Shaw
Indonesian Petroleum Association
... surface-wave noise and requires no iterations to exactly match the dispersion relations of the noise wavetrains. It is more robust than other...
2012
Frequency-dependent seismic anomalies resulting from anisotropic permeabilities in hydrocarbon-bearing fractured porous rocks
Xuehua Chen, Xiaomin Jiang, Shengyi Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
... the understanding of seismic wave anomalies in actual fractured reservoirs under cases of anisotropic permeabilities. It can be beneficial for permeability...
2024
Abstract: Processing 3-C Heavy Oil Data for Shallow Shear-wave Splitting Properties; #90174 (2014)
Richard Bale, Tobin Marchand, Keith Wilkinson, Kurt Wikel, and Robert Kendall
Search and Discovery.com
...Abstract: Processing 3-C Heavy Oil Data for Shallow Shear-wave Splitting Properties; #90174 (2014) Richard Bale, Tobin Marchand, Keith Wilkinson...
2014