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The AAPG/Datapages Combined Publications Database

Showing 686 Results. Searched 197,286 documents.

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Abstract: 3-D Prestack Waveform Inversion - A Real Data Example; #90255 (2017)

Josiane Pafeng Tchuindjang, Subhashis Mallick, Hema Sharma

Search and Discovery.com

... are important for accurate inversion. Some methods like prestack waveform inversion (PWI) solve the full wave equation and have given high quality results. PWI...

2017

Imaging in Complex Environments … Common Reflection Angle Migration

Graham A. Winbow

Indonesian Petroleum Association

... from the form of a typical velocity model. Thus more computationally intensive approaches such as Wave Equation Migration are not necessarily required...

2007

Current Trends in Geophysics

H. E. Stommel, J. M. Graul

Indonesian Petroleum Association

.... Processing has kept pace, aided by a trend toward industry-academic research and development projects. Developments include ever-expanding wave equation...

1978

Amplitude and Bandwidth Recovery Beneath Gas Zones Using Kirchhoff Prestack Depth Q-Migration

Jonathan Liu, Peter Traynin, J. M. Reilly

Indonesian Petroleum Association

..., frequency loss, and phase distortion below low Q anomalies. Several post-stack viscoaoustic wave-equation based methods have been proposed...

2007

GPU-based 3D anisotropic elastic modeling using mimetic finite differences

Harpreet Singh, Jeffrey Shragge, Ilya Tsvankin, Fatmir Hoxha

International Meeting for Applied Geoscience and Energy (IMAGE)

...) algorithms designed to solve the acoustic wave equation. Nakata et al. (2011) present the solutions of the 3D isotropic elastic wave equation on multiple GPUs...

2022

Fast Gauss-Newton full-wavefield migration

Siamak Abolhassani, Eric Verschuur

International Meeting for Applied Geoscience and Energy (IMAGE)

...* and Eric Verschuur, Delft University of Technology SUMMARY Since the appearance of wave-equation migration, many have tried to push this technology...

2022

On the connection between WRI and FWI: Analysis of the nonlinear term in the Hessian matrix

Ali Gholami, Hossein S. Aghamiry, Stephane Operto

International Meeting for Applied Geoscience and Energy (IMAGE)

... reconstruction inversion (WRI) (van Leeuwen and Herrmann, 2013) increases the robustness by relaxing the waveequation constraint. This wave-equation...

2022

PS-wave seismic data: A game changer in exploration and monitoring

Ali Tura, James Simmons, Sima Daneshvar, Matthew Copley, Joseph Stitt

International Meeting for Applied Geoscience and Energy (IMAGE)

..., a wave-equation based AVO application was also shown by Dhelie et al. (2021) to be an established geophysical tool to extract elastic subsurface...

2022

Seismic Foldout: Revealing a Promising New Play Concept in the Salar Basin, Offshore Canada

Yermek Balabekov, Susana Tierrablanca, Sriram Arasanipalai, Nizar Chemingui, PGS

GEO ExPro Magazine

... RELIABLE EARTH PROPERTIES Using a wave equation parameterised in terms of velocity and reflectivity removes the need for a density assumption...

2023

De-risking Gas Saturation

Said Amiri Besheli, Panos Doulgeris

GEO ExPro Magazine

... in the Julimar field contracted Delft Inversion to deploy its innovative methodology called WEB-AVO – Wave Equation Based AVO Inversion. WEB-AVO METHOD WEB...

2023

ABSTRACT: TECHNIQUE OF FORECASTING COAL GAS ENRICHING SECTION

Shuangan Yang, Shunian Ning, Huixing Zhang

The Society for Organic Petrology (TSOP)

... wave equation in two-phase media based on Biot theory was studied in the article. The solve of equation shows that there are two kinds of primary...

2006

The emergence and impact of scientific machine learning in geophysical exploration

Umair bin Waheed

International Meeting for Applied Geoscience and Energy (IMAGE)

... as a forward solver for the eikonal equation and the wave equation. For example, Waheed et al. (2020) and Smith et al. (2020) showed how PINNs could be used...

2023

The Use of Modern 3D Seismic Data Processing Techniques, 5D Interpolation, and Anisotropic PSTM to Improve Existing 3D Data in South Louisiana Data—Pulling the Scales from our Eyes; New Truth from Existing Datasets

John Asma, John Stevens, Sukhdev Hyare, Dave Spaulding

GCAGS Transactions

... of the earth in time or depth. The process reverses the wave propagation defined by the wave equation. Whether Kirchhoff or wave equation techniques are used...

2013

Forward Modeling of Seismic Data: Part 7. Geophysical Methods

George Mellman, Paul A. Kunzinger

AAPG Special Volumes

..., again with approximations, but with significant time savings. There are two classes of seismic modeling: ray tracing and wave equation methods...

1992

1.2 Seismic Stratigraphy: 1.2.2 Unconformities: High Relief Topography on the Jurassic Unconformity (Alabama)

J. R. English and J. S. Oslund

AAPG Special Volumes

... and amplitude changes in the unconformity event. Conversely, frequency balancing and wave equation migration are necessary to ensure the best possible...

1983

Abstract: Time Domain Least-squares Prestack Migration; #90172 (2014)

Ricardo C. Rebollo, Mauricio D. Sacchi

Search and Discovery.com

... migration with dip, SEG, Expanded Abstracts, 28, 2864. Kuehl H. and Sacchi M.D., 2003, Least-squares wave-equation migration for AVP/AVA inversion...

2014

Abstract: Testing the Viability of the Sharpe Hollow Cavity Model in Modelling Explosive Pressure Sources; #90187 (2014)

Christopher C. Petten and Gary F. Margrave

Search and Discovery.com

... a theoretical perspective since wave motion in this region cannot be predicted by the linear wave equation. The SHCM introduced by Joseph Sharpe in the late...

2014

Prestack Depth Migration for "Easy" Unconventional Plays?, #41056 (2012)

Morgan Brown

Search and Discovery.com

... only for imaging ‘complex’ geology. Offshore subsalt imaging drives application of the most advanced wave equation PSDM technologies, like ReverseTime...

2012

The application of phased-array vibrator system in deep seismic exploration

Minghao Yu, Xiangbo Gong, Xiaojie Wan

International Meeting for Applied Geoscience and Energy (IMAGE)

...� + e2�� +⋯+ �� �(��sin � + �) 1 sin  2 sin  2 = � sin  � ��sin � + � sin  2 2 In equation, � is the number of the seismic sources; � is the wave...

2022

Mitigating cycle skipping in FWI through preconditioned multidimensional optimal transport

James McLeman, Tim Burgess, Tom Rayment, Victor Chua

International Meeting for Applied Geoscience and Energy (IMAGE)

... Shelf of Australia. Introduction FWI seeks to minimize differences between the observed data and data modelled using the wave equation with initial...

2022

Finite-difference modeling of marine vibrator sources

Khalid Almuteri, Jeffrey Shragge, Paul Sava

International Meeting for Applied Geoscience and Energy (IMAGE)

... equation. Shragge (2014) and Shragge and Tapley (2017) present a time-invariant tensorial representation of the acoustic wave equation (AWE...

2022

A nodal discontinuous Galerkin method for wave propagation in coupled fluid-solid media

Ruiqi Li, Yijie Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... for wave propagation in coupled fluid-solid media Ruiqi Li* and Yijie Zhang, Xi’an Jiaotong University SUMMARY An accurate solution of the wave equation...

2022

Velocity model building and imaging driven by FWI with dual-azimuth data in a complex salt environment: Brazil case study

Xu Li, Christine Gans, Young Ho Cha, Diwi Snyder, Gopal Palacharla, Vijay Gottumukkula, Yaofeng He, Hongchuan Sun, Tetyana Vdovina, Xueyi Jia, Valeriy Brytik, Inmaculada Dura-Gomez

International Meeting for Applied Geoscience and Energy (IMAGE)

... azimuthal well log constrained tomography, iterative full waveform inversion (FWI) leveraging 3D mesh interpretation and wave-equation-based map...

2022

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