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The AAPG/Datapages Combined Publications Database

Showing 5,187 Results. Searched 200,293 documents.

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Abstract: Elastodynamic FWI Efficiency Study With Partial Stacking in 2D; #90224 (2015)

Vladimir N. Zubov, Gary F. Margrave, and Michael P. Lamoureux

Search and Discovery.com

... observations and the geophysical expert’s position on modelling spatial and temporal grids’ characteristic sizes as well as the source wavelet...

2015

Graph-space optimal transport-based 3D elastic FWI for near-surface seismic applications

Dmitry Borisov, Richard D. Miller, Shelby L. Peterie, Julian Ivanov, Anthony M. Hoch, Steven D. Sloan

International Meeting for Applied Geoscience and Energy (IMAGE)

... Research & Development Center Summary Full-waveform inversion (FWI) relies on an accurate initial model and source wavelet, appropriate physical...

2022

Abstract: A Ray+Waveform Inversion for the Potency Tensor; #90187 (2014)

Scott Leaney and Chris Chapman

Search and Discovery.com

... mechanism, and while we prefer a source model that admits an isotropic pressure source in a cavity together with a DD source as in (1), to keep the inver...

2014

Multi-dimensional inverse scattering series internal multiple model construction via orthogonal contribution summation

Frederico Xavier de Melo, Zhiming James Wu

International Meeting for Applied Geoscience and Energy (IMAGE)

...Multi-dimensional inverse scattering series internal multiple model construction via orthogonal contribution summation Frederico Xavier de Melo...

2024

Practical Use of Borehole Seismic in Exploration; Goals and Shortcomings

F. Sandnes, L. Nustt, S. G. Henry

Indonesian Petroleum Association

... It is a common assumption in reflecton seismic interpretation that the source wavelet which hits a subsurface reflector is a single, short duration pulse...

1983

Vertical Seismic Profiling--A Measurement that Transfers Geology to Geophysics: Chapter 2

B. A. Hardage

AAPG Special Volumes

... the energy source and the receivers are positioned on the earth's surface. What happens to the seismic wavelet as it propagates from the source...

1985

A recipe for practical iterative LSRTM with synthetic and real data examples from Brazil

Valeriy Brytik, Gopal Palacharla, Rishi Bansal, Diwi Snyder, Xu Li, Young Ho Cha, Partha Routh, Inma Dura-Gomez, Dmitriy Pavlov, Carey Marcinkovich

International Meeting for Applied Geoscience and Energy (IMAGE)

... still generating robust and physically meaningful results. 1. Wavelet: Every LSRTM application starts with a careful choice of the source wavelet...

2022

Abstract: Improving Seismic Interpretation by Reducing Uncertainty With 2-D Modeling and Analytics; #90310 (2017)

Vladimir Rybakov

Search and Discovery.com

... outcome. In this discussion we will examine uncertainty reducing workflows associated with forward and inverse modeling techniques. How can we make...

2017

Use of extended source inversion for estimating the noise level in seismic data

Huiyi Chen, William W. Symes, Susan E. Minkoff

International Meeting for Applied Geoscience and Energy (IMAGE)

... the noisefree data F[m]w in which the slowness m = 0.4 s/km, the offset between source and receiver r = 1 km, and the source wavelet is a 40 Hz Ricker...

2022

Least-squares reverse time migration of seismic source coding based on Shearlet transform

Yingkaer Nabi, Xiangbo Gong, Zhuo Xu

International Meeting for Applied Geoscience and Energy (IMAGE)

..., the grid size is dx=dz=8m, the dominant frequency of the Ricker source wavelet is 25Hz, the sampling interval is 0.001s, and the recording time is 1.5s...

2022

Abstract: Full Waveform Inversion Algorithm using Time Imaging Methods; #90174 (2014)

Hassan Khaniani, John C. Bancroft, Gary F. Margrave, and Eric von Lunen

Search and Discovery.com

... with source wavelet s ( ) using 2  1  1  u ( x,  )   Ln   s( ), 4   v ( x,  )  (5) where the density is assumed to be constant...

2014

Eliminating the Influence of Caprock Thickness on Anomaly Intensities in Geochemical Surface Survey in the South Slope of the Dongying Depression in East China; #41304 (2014)

Liuping Zhang, Zhenli Wang, and Yingquan Zhao

Search and Discovery.com

..., the detailed sequence (high frequency parts) is multiplied by the correction factor and the inverse transformation of wavelet analysis was conducted to obtain...

2014

A case study of broadband processing in extremely shallow water environment of Bohai Bay

Jiangbo Huang, Xinyi Duan, Dekui Xu, Pingping Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... source or receiver ghost, and the phase of º wavelet become almost 180 after containing both source and receiver ghost. It also can be seen from...

2024

Leveraging legacy data: An onshore reprocessing case study from eastern Australia

Bahaa Soliman, Catalina L. Ocampo, Oscar Garcia, Andy Walz, Anthony Goodall, Emily Guidry

International Meeting for Applied Geoscience and Energy (IMAGE)

... and fault definition to better resolve the target and identification of shallow hazards. Figure 1: Project layout: Source line (red) interval: 466.67 m...

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)

... by the source discretization correction operator. Thirdly, to eliminate the back-scattering noise, the inverse scattering imaging condition is utilized...

2024

Reducing Geologic Uncertainty in Seismic Interpretation; #41947 (2016)

Jim Bock

Search and Discovery.com

... become exceeding valuable. This presentation will examine a number of uncertainty reducing workflows associated with both forward and inverse...

2016

Statistical Relations Between Borehole and Surface Data

Dale G. Stone

Oklahoma City Geological Society

... and in the borehole is often difficult. The most prevalent practice is visual alignment and evaluation of forward synthetics. Recently inverse seismograms have...

1984

Appendix A: Considerations for Optimum 3-D Survey Design, Acquisition and Processing

R. Malcolm Lansley

AAPG Special Volumes

... the array (Ziolkowski et al., 1982). The source signature may then be used to design an inverse filter for source wavelet removal without invoking...

2011

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)

... backward in time the deblurred FWI data residuals, where the deblurring operator is the inverse of the damped data-domain Hessian of the contrast-source...

2022

Abstract: Removing Blended Sources Interference Using Stolt Operator; #90224 (2015)

Amr Ibrahim

Search and Discovery.com

... is the blended data, D represent the original data cube that would be recorded without source overlapping and Γ is the blending operator (Berkhout...

2015

Rock-physics based time-lapse inversion in Delivery4D: synthetic feasibility study for CO2CRC Otway Project

Stanislav Glubokokvskikh, James Gunning, Tess Dance, Roman Pevzner, Dmitry Popik, Christian Proud

Petroleum Exploration Society of Australia (PESA)

... extend the functional of Delivery - an open-source stochastic inversion software. We illustrate efficiency of Delivery4D using synthetic 4D dataset...

2018

A deep learning-based inverse Hessian for full-waveform inversion

Mustafa Alfarhan, Matteo Ravasi, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

...A deep learning-based inverse Hessian for full-waveform inversion Mustafa Alfarhan, Matteo Ravasi, Tariq Alkhalifah A deep learning-based inverse...

2023

Abstracts: Full Waveform Inversion Using One-way Migration and Well Calibration; #90173 (2015)

Gary F. Margrave, Robert J. Ferguson, and Chad M. Hogan

Search and Discovery.com

... domain, it will be a convolutional wavelet. We find an analogy between estimation of the velocity update from the migrated section and the common process...

2015

Abstract: Case Study- High Resolution Velocity Model Building to Improve Carbonate Reefs Image in Tz Area; #91204 (2023)

Hongjun Zhang, Yang Chen, Zhengzheng Zhou, Xiang Li, Hotma Yusuf, Haryono Haryanto, Farid Dasa Marianto

Search and Discovery.com

..., with limited 2.3km offset, air-gun source depth 4 or 2 m varying with water depth, Data was acquired on grid of 25m x 25m. This survey is composed of north...

2023

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