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The AAPG/Datapages Combined Publications Database
Showing 20,859 Results. Searched 200,685 documents.
Shaping regularization by fast explicit diffusion
Sergey Fomel
International Meeting for Applied Geoscience and Energy (IMAGE)
...) is the Z-transform of the box filter BN (Z) = 1 − ZN N (1 − Z) = 1 1 + Z + Z 2 + · · · + Z N−1 . N (2) The triangle filter defined in equation (1) has...
2022
An anti-aliasing plane wave decomposition method based on local linear Radon transform
Jian Xiang, Huazhong Wang, Bo Feng, Chengliang Wu
International Meeting for Applied Geoscience and Energy (IMAGE)
...An anti-aliasing plane wave decomposition method based on local linear Radon transform Jian Xiang, Huazhong Wang, Bo Feng, Chengliang Wu An anti...
2024
Abstract: P-Wave Velocity Variation in Water-Saturated Sand from Shallow Seismic Refraction
L. S. Leong, K. H. Ho, K. Y. Lee, C. C. Yew
Geological Society of Malaysia (GSM)
...Abstract: P-Wave Velocity Variation in Water-Saturated Sand from Shallow Seismic Refraction L. S. Leong, K. H. Ho, K. Y. Lee, C. C. Yew 130...
1992
ABSTRACT: Design Analysis of the Raymer Hunt-Gardner Algorithm and Modification for Shaly Sands; #90118 (2011)
Hari Kumar
Search and Discovery.com
... to obtain porosity values comparable to densityneutron porosity in shaly sands. Modified equation can be applied to derive porosity from S-wave velocity...
2011
Abstract: A New Approach to Optimizing Recovery PRTISP Process; #90239 (2015)
Harold Nikipelo
Search and Discovery.com
... not appear to be effective in highly attenuative formations. Benefits Seismic wave stimulation technology has the potential to provide a low-cost...
2015
Time-domain extended-source full-waveform inversion for acoustic vertically transversely isotropic media: Theory and numerical validation
Gaoshan Guo, Stephane Operto, Hossein S. Aghamiry
International Meeting for Applied Geoscience and Energy (IMAGE)
... Inversion (ES-FWI) is a promising method to mitigate cycle-skipping resulting from crude initial models. Relaxing the wave equation constraint...
2023
Three-Dimensional Depth Imaging of Seismic Data to Help Delineate Petroleum Reservoirs in the Williston Basin
Alvin K. Benson
Williston Basin Symposium
... subsurface as an acoustic medium, we assume that the propagation of energy through the earth is governed by the acoustic wave equation...
1995
Abstract: Near-surface S-wave Velocity from an up Hole Survey using Explosive Sources; #90187 (2014)
Saul E. Guevara, Gary F. Margrave, and William M. Agudelo
Search and Discovery.com
...Abstract: Near-surface S-wave Velocity from an up Hole Survey using Explosive Sources; #90187 (2014) Saul E. Guevara, Gary F. Margrave, and William M...
2014
Source location using physics-informed neural networks with hard constraints
Xinquan Huang, Tariq Alkhalifah
International Meeting for Applied Geoscience and Energy (IMAGE)
... the solution of the wave equation. We can train this NN function in a data-free fashion by taking the PDE mean square error as the loss function...
2022
Reverse-time migration of mobile marine vibrator data
Khalid Almuteri, Paul Sava, Jeffrey Shragge
International Meeting for Applied Geoscience and Energy (IMAGE)
... in the seismic wavefield. We compute the wavefields required by RTM using the acoustic wave equation in a generalized coordinate system that takes...
2022
Eikonal equation-based adjoint-state characteristic reflection traveltime tomography: Method and application in real dataset
Jianming Zhang, Liangguo Dong, Jianhua Wang, Yilin Wang, Chao Huang
International Meeting for Applied Geoscience and Energy (IMAGE)
... to the fixed reflector in the conventional ASRT. Compared to the wave-equation-based reflection traveltime inversion methods, the inversion efficiency...
2023
Seismic Migration Interpolation using Time-Shift Imaging Condition
Mark Ng
Search and Discovery.com
... wave-equation downward continuation shot migration without loosing significant accuracy. Introduction The zero time (lag) imaging condition has been...
Unknown
Seismic Migration Interpolation using Time-Shift Imaging Condition
Mark Ng
Search and Discovery.com
... wave-equation downward continuation shot migration without loosing significant accuracy. Introduction The zero time (lag) imaging condition has been...
Unknown
Sparsity and Continuity Enhancing Seismic Imaging, #41532 (2015).
Peyman P. Moghaddam, Felix Herrmann, and Chris Stolk
Search and Discovery.com
... are promoted as part of this optimization. Our method is tested with a reverse-time 'wave-equation' migration code simulating the acoustic wave...
2015
Towards wave-equation ambient noise tomography of a landslide: The Harmalière case study
Giuseppe Provenzano, Grégory Biévre, Romain Brossier, Stéphane Garambois, Ludovic Métivier
International Meeting for Applied Geoscience and Energy (IMAGE)
...Towards wave-equation ambient noise tomography of a landslide: The Harmalière case study Giuseppe Provenzano, Grégory Biévre, Romain Brossier...
2024
A practical implementation of data-space Hessian in the time-domain formulation of source extended full-waveform inversion
Gaoshan Guo, Stephane Operto, Ali Gholami, Hossein S. Aghamiry
International Meeting for Applied Geoscience and Energy (IMAGE)
... by pushing back the wavefields toward the wave equation. The authors have recently shown that source extensions are the leastsquares solutions...
2022
Ultrasound reverse time migration for human brain imaging
Ting Li, Bo Feng, Yang Zhou, Rongwei Xu, Huazhong Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
... the time dispersion, we treat the acoustic wave equation as a harmonic oscillator differential equation and obtain its exact finite difference scheme...
2024
Determination of Velocity Model by Using NIP-Wave Tomographic Inversion: Application to Synthetic and Real Data
A. Hendriyana, R. Sule, Y. Akbar, L.A. Poerwaka, T.A. Sanny, Sardjito, Waluyo, Adriansyah
Indonesian Petroleum Association
... events in the CRS-stacked section. Finally all data component given in the following equation, NIP-WAVE THEORY Principally, the NIP-wave tomography...
2009
Mitigation of the 3D Cross-Line Acquisition Footprint Using Separated Wavefield Imaging of Dual-Sensor Streamer Seismic Data A First Example from Malaysia
Mazin Farouki, Andrew Long, Richard Jones, Yee Ah Chim, Magdalene Tang, Hui LeGleut, Shaoping Lu, Dan Whitmore, Adam Betteridge
Indonesian Petroleum Association
... al., 2007). Whitmore et al. (2010) published an approach whereby one-way wave equation pre-stack depth migration (PSDM) is reconfigured to use up...
2013
Integrated Seismic Attributes and AVO Analysis in the Faults and Hydrocarbon Leakage Extraction
Ragil Destriawan Prasetyo, Dicky Harishidayat
Indonesian Petroleum Association
... equation. They separated the equation into three reflection terms, each of it weaker than the previous term: 𝑅 𝑝 (𝜃) = 𝐴 + 𝐵 𝑠𝑖𝑛2...
2019
Beach Foreshore Sedimentology and Morphology in the Apostle Islands of Northern Wisconsin
Wayne N. Engstrom
Journal of Sedimentary Research (SEPM)
... sediments and slopes of 39 beaches in the Apostle Islands of northern Wisconsin were found to be related to various measures of wave energy, wave...
1974
Abstract: Application of 2D Crosscorrelation and Radon Transform for Analysis of Double Couple Microseismic Source; #90187 (2014)
Neda Boroumand and Hassan Khaniani
Search and Discovery.com
... problem, equation (1) can be expressed in Cartesian coordinates as a pair of equations that represent the continuous, elastic wave equation...
2014
Abstract: Modelling Near-field Effects in VSP-based Q-estimation Part 2: Modelling Results; #90171 (2013)
Arnim B. Haase and Robert R. Stewart
Search and Discovery.com
... and Robert R. Stewart University of Houston Summary The complete spherical wavefield emanating from a P-wave point source surrounded by a homogeneous isotropic...
2013
Reducing Uncertainties In Shear Wave Petrophysical Log Prediction By Using Deep Neural Network and Machine Learning Methods
Muhammad Faris Abdurrachman, Muhammad Dhafit Muhsin
Indonesian Petroleum Association
... the certainty of Shear-wave data prediction and minimise user workload because the user does not have to think about which equation will be used. In essence...
2021
Impact of an Integrated Seismic Data Processing Approach: A Case Study in Central Sumatra
Mars E. Semaan, Eddy Murhantoro, Maryanto, Achmad Bermawi, Budi Subianto, Hari Santoso
Indonesian Petroleum Association
...). Of particular interest is the equation which relates incident P- wave amplitudes to reflected P-wave amplitudes, since most conventional seismic...
1992