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The AAPG/Datapages Combined Publications Database

Showing 20,858 Results. Searched 200,619 documents.

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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

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