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The AAPG/Datapages Combined Publications Database
Showing 791 Results. Searched 198,814 documents.
Memory-efficient frequency-domain least-squares RTM using low-rank Greens functions via randomized SVD
Daniel E. Revelo, Reynam C. Pestana, Diego F. Barrera, Rodrigo S. Santos
International Meeting for Applied Geoscience and Energy (IMAGE)
...-propagating field data using the two-way wave-equation (Ren et al., 2013), has been proven to be the most accurate imaging technique because of the ability...
2024
Thinking in Depth
Jim Durrant
Petroleum Exploration Society of Australia (PESA)
... y uses an Tim e m igration approximatio n to the scalar wave equation, w hic h co llapses diffractions but does not account for lateral veloc ity...
1995
Seeing through the Salt
Jerry Kapoor, Nick Moldoveanu, Denes Vigh
GCAGS Transactions
... acoustic version of full-waveform inversion using the two-way wave equation with an elastic correction factor to model seismic data using an initial...
2013
Abstract: Seismic Imaging near and within the Basement Offshore Malaysia; Including Comparisons of Imaging Algorithms (Geophysics Paper 19)
Nabil El Kady, M. Shah Sulaiman, Zabidi M Dom, Tang Wai Hoong, Lee Mei Lu, Pavel Vasilyev, Martin Bayly
Geological Society of Malaysia (GSM)
... an imaging algorithm that comprehends both down going and up going wave propagation, namely a two-way wave equation implementation. Such an implementation...
2011
Application of VTI PSDM for imaging carbonate structures
Seyed Yaser Moussavi Alashloo, Deva Ghosh, Yasir Bashir, Amir Babasafari
Geological Society of Malaysia (GSM)
... transverse isotropy (VTI) wave equation. A fast marching finite difference approach is used as our eikonal solver since it is fast and stable...
2018
Full Waveform Acoustic Logging: Part 7. Geophysical Methods
C. H. Cheng
AAPG Special Volumes
... versus offset studies, and elastic wave equation migrations, among many other uses. The FWAL is also commonly used to identify and characterize fractures...
1992
Limitations on Resolution of Seismic Reflections and Geologic Detail Derivable from Them: Section 1. Fundamentals of Stratigraphic Interpretation of Seismic Data
Robert E. Sheriff
AAPG Special Volumes
... relations rather than underneath the locations at which the data are observed. Wave-equation migration clarifies stratigraphic evidences End_Page 3...
1977
Seismic Imaging of Fractures A Feasibility Study
Larry Lines
Search and Discovery.com
..., L.R., 1997, Seismic modeling and imaging with the complete wave equation, SEG publication, Tulsa, Oklahoma. Lamb, M.A., and Spratt, D.A., 2005...
Unknown
ABSTRACT: Champlain: A Subsalt Discovery in the Deepwater Gulf of Mexico; #90007 (2002)
Wilson, Louise, Brian Cabote, Douglas Weaver, Bo Cribbs, Arthur Leibold
Search and Discovery.com
... of complex geometry in the salt canopy. Therefore, a second PrSDM utilizing a wave equation shot record migration algorithm was performed by Texaco’s depth...
Unknown
Seismic Imaging of Fractures A Feasibility Study
Larry Lines
Search and Discovery.com
..., L.R., 1997, Seismic modeling and imaging with the complete wave equation, SEG publication, Tulsa, Oklahoma. Lamb, M.A., and Spratt, D.A., 2005...
Unknown
Abstract: Image Enhacement After Migration; #90174 (2014)
John C. Bancroft, Thais Guirigay, and Helen Isaac
Search and Discovery.com
... it applies to all “wave-equation” migrations. Consider the forward process of modelling with linear algebra as (1) Dr s , where D is a diffraction...
2014
Abstracts: Getting Better Shear-wave Data over Heavy Oil: Rational for Buried Acquisition; #90173 (2015)
Rob Kendall and Richard A. Bale
Search and Discovery.com
...], Elastic Wave-equation Depth Migration of Seismic Data for Isotropic and Azimuthally Anisotropic Media, Ph.D. Thesis, University of Calgary. Bale, R...
2015
Abstracts: Microseismic Event Models from Finite-differencing with Corrections; #90173 (2015)
Peter M. Manning
Search and Discovery.com
...’s techniques, which are very effective because they need target only those terms of the wave equation which propagate shear waves. The third example...
2015
PSDM for Unconventional Reservoirs? A Niobrara Shale Case Study; #80392 (2014)
Morgan P. Brown
Search and Discovery.com
... to justify anisotropic PSDM. Azimuthal velocity analysis using Wave Equation PSDM (WEM) azimuth angle gathers indicates a very weak level of overburden...
2014
CGG 3D Surface-Related Multiple Modelling: A Unique Approach, #41590 (2015).
David Le Meur, Antonio Pica, Terje Weisser
Search and Discovery.com
... and multiples through the target volume is modelled using the one-way wave equation. The method therefore handles well the problems of cable feathering...
2015
What Causes those Annoying Stair-Step Artifacts on Coherence Volumes?; #42036 (2017)
Tengfei Lin, Kurt J. Marfurt
Search and Discovery.com
... reflectivity model showing faults with dips of 500, 600, 700 and 800. Synthetics were generated using a 2-D finite difference solution of the wave...
2017
3D Prestack Waveform Inversion - A Real Data Example from the Rock Springs Uplift, Wyoming, #70258 (2017).
Josiane Pafeng, Subhashis Mallick, Hema Sharma
Search and Discovery.com
... inversion (PWI) solve the full wave equation and have given high quality results. PWI is very computation-intensive and was thus rewritten in a multilevel...
2017
Field Development with Three-Dimensional Seismic Methods in the Gulf of Thailand — A Case History
C. G. Dahm, R. J. Graebner
Southeast Asia Petroleum Exploration Society (SEAPEX)
... line spacing over a block roughly rectangular in shape covering about 130 square kilometers. The 40 fold data were processed using a 3D wave equation...
1980
Deblurring migration images with point spread function filter
Cewen Liu, Nanxun Dai, Wei Wu, Xiaofeng Wu, Mingjie Guo, Haohuan Fu
International Meeting for Applied Geoscience and Energy (IMAGE)
... normalization for wave-equation depth migration: Geophysics, 68, no. 4, 1371–1379, doi: https://doi.org/10 .1190/1.1598130. Tang, Y., 2009, Target...
2022
Practical considerations for computing the kernels of reflection-based full-waveform inversion
Houzhu (James) Zhang, Hong Liang, Hongwei Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
..., doi: https://doi.org/10.1190/geo2012-0327.1. Luo, Y., and G. T. Schuster, 1991, Wave-equation traveltime inversion: Geophysics, 56, no. 5, 645–653, doi...
2022
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
Normalized energy-norm imaging condition for elastic reverse-time migration
Can Oren, Jeffrey Shragge
International Meeting for Applied Geoscience and Energy (IMAGE)
... approach. THEORY Assuming linear elasticity, we consider the anisotropic elastic wave equation with no external sources (Aki and Richards, 2002...
2022
Staggered source acquisition to improve images fidelity
Chunming Wang, Hongwei Guo, Gengxin Peng, Ying Hu, Junru Jiao, Bin Yang, Kun Xu, Grace Yan, Xianhuai Zhu
International Meeting for Applied Geoscience and Energy (IMAGE)
.... al, 2006). The typical algorithms for illumination analysis include ray-tracing and wave ray tracing equation methods. The former is computing cost...
2022
Analysis of the impact of demigration on traveltime-based reflection full-waveform inversion
Hong Liang, Houzhu (James) Zhang, Hongwei Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... 78, no. 2, S105–S115, doi: https://doi.org/10.1190/geo2012-0327.1. Luo, Y., and G. T. Schuster, 1991, Wave-equation traveltime inversion: Geophysic...
2022
Building high-resolution models and synthetic seismic data to evaluate interpretation scenarios
Tiago Santos Cabral, Rodrigo Lopes Fernandes, Daina Popic Bendoraitis, Josair Estrela Gonalves Junior, Luiz Alberto Santos
International Meeting for Applied Geoscience and Energy (IMAGE)
... improves over time, modeling techniques that can handle those complex situations, like finite-difference (FD) modeling with the full wave equation (pioneered...
2022