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The AAPG/Datapages Combined Publications Database

Showing 1,305 Results. Searched 201,044 documents.

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Acquisition geometry design based on full-wavefield migration

Billy A. Revelo Obando, Gerrit Blacquire

International Meeting for Applied Geoscience and Energy (IMAGE)

... iteration. THEORY We describe 3D seismic data with the matrix notation introduced by Berkhout (1982). For each frequency component, a seismic dataset can...

2022

Imaging below Seafloor Canyons and other Rugose Features

Dominic Fell, Kiran Dyal, Tony Hallam, Sebastian Nixon

Australian Petroleum Production & Exploration Association (APPEA) Journal

... in the earth model building process. To obtain an accurate image of the deeper target levels, a modelling and data driven update of the distinctive...

2017

Prestack inversion for tight sandstone thin reservoirs based on anisotropic rapid reflectivity method

Zhen Yang, Zhenfeng Liu, Junzhou Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

..., 107416. Padhi, A., and S. Mallick, 2013, Accurate estimation of density from the inversion of multicomponent prestack seismic waveform data using...

2024

Stepsize sharing in time-lapse full-waveform inversion

Xin Fu, Kristopher A. Innanen

International Meeting for Applied Geoscience and Energy (IMAGE)

... in iteration k , which depends on the updated model m k −1 and data residual d k −1 res in iteration k − 1 . In the steepest descent method, g represents...

2022

Abstract: Full Waveform Inversion with Phase Encoded Deconvolution Imaging Condition; #90224 (2015)

Wenyong Pan, Kris Innanen, and Gary Margrave

Search and Discovery.com

... in the n th iteration. P mean the data residuals, the difference between the observed data and synthetic data.  2 indicates the l  2 where n...

2015

Diving wave tomography: Velocity modelling using first arrival traveltime

Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu

Geological Society of Malaysia (GSM)

... particularly when seismic data has poor signal-to-noise ratio (SNR) with complex geologic settings where no clear reflector is present. Considering...

2022

Integration of geology, rock physics, logs, and prestack seismic data for reservoir porosity estimation

Abdulaziz M. AlMuhaidib, Mrinal K. Sen, M. Nafi Toksoz

AAPG Bulletin

...Integration of geology, rock physics, logs, and prestack seismic data for reservoir porosity estimation Abdulaziz M. AlMuhaidib, Mrinal K. Sen, M...

2012

Success Factors for Effective Subsurface Imaging of Overthrust Belt Legacy Seismic Data

Walt Ritchie and Mihai Popovici

Search and Discovery.com

... PSDM volumes at each stage. After each iteration, data were assessed for image quality, tie to formation top information, and curvature consistency...

2009

Joint Anisotropic Parameter Inversion Based on Nonhyperbolic Moveout and Azimuthal Amplitude Variance

Fangyu Li, Jie Qi, Bin Lyu, Kurt J. Marfurt

Unconventional Resources Technology Conference (URTEC)

... the proposed workflow for joint VTI and HTI parameter inversion workflow. The input data are prestack time-migrated CMP gathers and the initial...

2016

AAPG Memoir 76, Chapter 19: The Future of Pressure Prediction Using Geophysical Methods

Alan R. Huffman

AAPG Special Volumes

... for velocity analysis. Prestack time migration, demultiple, and other techniques are commonly required to clean up the seismic data so that it is suitable...

2001

Acoustic impedance multichannel inversion constrained by spatial reflection features

Yaming Yang, Xingyao Yin, Kun Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... seismic data shows that the proposed method is feasible and effective. INTRODUCTION Seismic inversion is a key technique for obtaining reservoir...

2023

Abstracts: Full Waveform Inversion with Total Variation Regularization; #90173 (2015)

Amsalu Y. Anagaw, Mauricio D. Sacchi

Search and Discovery.com

... from low to higher frequency. Tests with the Marmousi data set are utilized to highlight our numerical results. Introduction Full waveform inversion...

2015

POCS Method for Seismic Data Reconstruction of Irregularly Sampled Data

Elwyn J. Galloway

Search and Discovery.com

... as a method for seismic data interpolation by Abma and Kabir (2006). The basic technique applies the following projections for each iteration xk (I...

Unknown

POCS Method for Seismic Data Reconstruction of Irregularly Sampled Data

Elwyn J. Galloway

Search and Discovery.com

... as a method for seismic data interpolation by Abma and Kabir (2006). The basic technique applies the following projections for each iteration xk (I...

Unknown

Salt Geometry and Subsalt Trapping in the Enchilada Area, NE Garden Banks, Offshore Louisiana

Brad A. Robison , Rocco Detomo Jr. , R. David Garner , Arie Speksnijder , Michael J. Styzen

GCAGS Transactions

... the data. This second iteration prestack depth migration incorporated application of technologies aimed at noise reduction below salt. Migrated subsets...

1997

Beam Migration for Imaging of Complex Structures

Karl Schleicher, John Sherwood, Lynn Comeaux, Mazin Farouki

Indonesian Petroleum Association

... - Kirchhoff prestack time migration (left) and BPSDM (right) on Beaufort Sea data. The beam migration imaged steep and overturned events. Figure 2 - BPSDM...

2009

The use of FWI in coal exploration

Mehdi Asgharzadeh, Maryam Bahri, Milovan Urosevic

Petroleum Exploration Society of Australia (PESA)

... components) for shot number 10 (X=200 m) at the final iteration obs 131. A comparison between simulated seismograms in Figure 6 and observed data ( u X...

2018

Robust reconstruction via orthogonal matching pursuit with Fourier operators

Ji Li, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

.... The data corresponds to 301-time samples and 30 × 30 midpoints extracted from a constant x− and y− offset volume. The prestack volume was NMO...

2022

Simultaneous inversion of velocity and angle-dependent reflectivity

Nizar Chemingui, Yang Yang, Jaime Ramos-Martinez, Guanghui Huang, Dan Whitmore, Sean Crawley, Elena Klochikhina, Sriram Arasanipalai

International Meeting for Applied Geoscience and Energy (IMAGE)

... the reflection angle required for constructing prestack angle gathers as follows: 𝑹 ∙ 𝛻𝑃 𝜃 = arccos⁡( ) ‖𝑹‖ ∙ ‖𝛻𝑃‖ Figure 1 illustrates...

2023

Estimation of ocean-water temperature and salinity from marine seismic data for weather prediction and climate modeling

Dwaipayan Chakraborty, Jorlivan Correa, Matheus Mendes Ferreira de Faria, Emmanuel Oladeji, Subhashis Mallick

International Meeting for Applied Geoscience and Energy (IMAGE)

... T and S. Theory and Method Fig. 1 summarizes the data-driven approach of prestack GA inversion of Mallick and Chakraborty (2022), applied to a real seismic...

2023

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