Abstract: An RBF-FD Scheme on Hexagonal Grids to Solve the Helmholtz Equation with High Wavenumber; #90255 (2017)

Mauricio Londono

Search and Discovery.com

... layers (PML) and we use this method to compute imaging conditions in single scattering models...

Abstract: Full Waveform Inversion for Complex Near Surface Imaging Using SEG Seam II Synthetic Model; #90319 (2018)

Ali A. Mohamed, Abdullatif A. Al-Shuhail

Search and Discovery.com

... scattering of surface and body wave that interfere with the imaging of deeper structure. In this paper, we tested and applied Full Waveform Inversion as high...

Estimating Stimulation-Zone Anisotropy Effects During Microseismic Monitoring

Martin Karrenbach, Steve Cole, Victor Yartsev

Unconventional Resources Technology Conference (URTEC)

.... We demonstrate that this apparent contradiction can be explained by proper upscaling of sonic scanner data using equivalent medium theory. Using...

Phase-encoded waveform inversion for multiples

Yike Liu, Bin He, Xiao-Bi Xie, Yingcai Zheng

International Meeting for Applied Geoscience and Energy (IMAGE)

... of Petroleum Geologists REFERENCES Alkhalifah, T., and Z. Wu, 2016, Multi scattering inversion for low-model wavenumbers: Geophysics, 81, no. 6, R417...

Seismic signatures of pore fluid mobility in heterogeneous reservoirs

Qiuzi Li, Brent Wheelock, Tuan Tran, Fadil Santosa

International Meeting for Applied Geoscience and Energy (IMAGE)

... attenuation from poroelastic effects. We analyzed the poroelastic effects on elastic scattering and interference effects is key to making seismic...

Application of acoustic anisotropic time-lapse full-waveform inversion at the Sleipner Field

Sea-Eun Park, Alexey Stovas, Hyeong-Geun Ji, Ju-Won Oh

International Meeting for Applied Geoscience and Energy (IMAGE)

... , (8)   . (9) 1  2 With this parameterization, we estimate P-wave velocity from all scattering angles while estimating ε from a narrow scattering...

Influence of Sill Intrusions on the Organic Geochemistry of Upper Triassic Lacustrine and Fluviatile Sediments at Timber Peak, Antarctica; #40467 (2009)

Ulrich Berner, Jolanta Kus, Georg Scheeder, Georg Delisle, Jorg W. Schneider, Robert Schoner, and Lothar Viereck-Gotte

Search and Discovery.com

... the upper sill. The increase of reflectance values, however, is not uniform and the observed scattering of the data might be attributed to the influence...

Abstract: An Analysis of the Near Surface Using Remote Sensing for the Prediction of Logistics and Data Quality Risk, by Andreas Laake and Andrew Cutts; #90105 (2010)

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Fracture Detection via Double Beam Focusing and Image Filtering

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Dual Pore-connectivity & Wettability and Fluid-accessible Pathways of Shale

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Abstract: High Resolution Diffraction Imaging of Small Scale Fractures in Shale and Carbonate Reservoirs; #90255 (2017)

Alexander Popovici, Ioan Sturzu, Tijmen Jan Moser

Search and Discovery.com

..., fluid fronts, caves and karst, and in general any small scattering objects, by using Diffraction Imaging as a complement to the structural images produced...

Abstract: Statistical Depth Imaging with Path Summation through Complex Near-Surface; #91204 (2023)

Ilya Silvestrov, Andrey Bakulin, Maxim Protasov

Search and Discovery.com

... scattering caused by small- and medium-scale near-surface heterogeneities strongly deteriorates the quality of depth seismic images. While...

Evolution of Gulf Coast Crude Oil

Donald C. Barton

AAPG Bulletin

... or factors proportional to nearness to the surface. The theory of evolution of the Gulf Coast crude oils from heavy naphthenic ancestral oils under...

Frequency Attenuation: A Fracture Indicator

Ilyas J. Najmuddin

Houston Geological Society Bulletin

... frequencies preferentially due to scattering and absorption (McCann and McCann, 1985; Guigne, et al.,1989) therefore the frequency spectra shift...

Abstract: Application of Multiresolution Analysis in Removing Ground-penetrating Radar Noise; #90171 (2013)

Yih Jeng, Chuan-Hung Lin, Yi-Wei Li, Chih-Sung Chen, and Hsin-Han Huang

Search and Discovery.com

... of the GPR data. We paid special attention to the data with serious ringing or scattering noise sources, where this method proved to be very useful...

Abstract: 3D–3С Full-Wave Modeling in Anisotropic 2.5D Medium; #90171 (2013)

A. Kostyukevych, N. Marmalevskyi, Y. Roganov, and V. Tulchinsky

Search and Discovery.com

.... The calculated wave-field contains all types of waves (qP, S1 and S 2 ) created by seismic wave scattering in the medium discontinuities. Song and William...

Abstract: Application of Acoustic Waveform Tomography to Marine Seismic Reflection Data Contaminated with Strong Guided Waves; #90187 (2014)

Rajesh Vayavur and Andrew. J. Calvert

Search and Discovery.com

... by Brenders and Pratt (2007) to minimize effects arising from complex geometrical spreading, 3D scattering effects etc. Because the above method assumes...

Weighted stacking of up-and down-going RTM images using peak signal-to-noise ratio analysis

Sérgio Luiz E. F. da Silva, Ammir Karsou, Paulo H. B. Alves, Roger M. Moreira, Jorge Lopez, Marco Cetale

International Meeting for Applied Geoscience and Energy (IMAGE)

.... This imaging condition is based on inverse scattering theory concepts and helps reduce artifacts generated by undesirable cross-correlations (Yang...

Raman spectroscopic analysis of carbonaceous matter and silica in the test walls of recent and fossil agglutinated foraminifera

David H. McNeil, H. Georg Schulze, Emily Matys, and Tanja Bosak

AAPG Bulletin

...: 10.1016/j.fuel.2005.03.036. Raman spectroscopy has a complex theory, rooted in classical physics and quantum mechanics. Though there are several variants...

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)

... that the inversion process is stable improves the inversion results. Demrtrio Labate and Guo et al. (2005) powerfully linked composite wavelet theory and geometric...

On Behavior of the Late Jurassic Carnivores

M.T. Naus, W.W. Stein

Montana Geological Society

... for a period of time. The den site theory maintains that a small "family" utilized an area in which feeding activity oc­curred...

Low Frequency Passive Seismic Method For Hydrocarbon Indicator in the X-Field, Trembes Area, East Java Basin

Ricky Sitinjak, Sumarsono, Budi Eka, Suherman

Indonesian Petroleum Association

... frequency wavefield scattering effect of the acoustically anomalous hydrocarbon reservoir within an otherwise relatively homogenous subsurface...

A case study of cavity excitation method for seismic acquisition in the limestone outcrop area of eastern Sichuan, China

Xiaoyang Wang, Min Li, Xiaobin Zhang, Shuqin Li, Zhichao Yang, Longjiang Jing, Zhen Yang, Yanfa He, Xiaohong Zhao, Mingyi Li, Hao Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Starting from the cavity excitation theory, we select parameters in the cavity excitation method. By reducing the initial pressure of the explosion...

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)

... with water and seafloor. And it is the main reason why the normal SRME and the inverse scattering series methods cannot achieve good results in Bohai Bay...

Ground Roll Polarization Filtering with Spatial Smoothness Constraints

Search and Discovery.com

... into the noise estimate. Basic Polarization Filtering Theory Any 3C trace can be written as a time-dependent vector d(t ) = [x(t ) y (t ) z...