Thoughts and Observation on Interpreting Depth-Imaged Data in the Jurassic Norphlet Play, Deepwater Eastern Gulf of Mexico, #41342 (2014)

Donald A. Herron

Search and Discovery.com

...-velocity Smackover Limestone. Reference Cited Mancini, E.A., J. Obid, M. Badali, K. Liu, and W.C. Parcell, 2008, sequence-stratigraphic analysis...

Capturing Porestructures with Digital Image Analysis for a Quantitative Correlation to Physical Properties, #40756 (2011)

Ralf J. Weger, Klass Verwer, Gregor P. Eberli, Gregor Baechle

Search and Discovery.com

... as defined by digital image analysis are highly correlated to acoustic velocity, permeability, and electrical resistivity. A combination of these pore shape...

Impact of full-wavefield inversion (FWI) based high-resolution model building and Q imaging on exploration and development at Guyana Stabroek

Fuxian Song, Patrick Monigle, Jia Yan, Vikas Gudipati, Xu Li, Sunwoong Lee, Sam Hemmings-Sykes, Ashlika Persaud, James Pape, Lee E Gilchriest, Amir Abdi, Emily Lalli, Anupama Venkataraman, Ramesh Neelamani, Steve Knapp, Krista Solvason

International Meeting for Applied Geoscience and Energy (IMAGE)

... Knapp (Hess Corporation), and Krista Solvason (CNOOC International) Summary We showcase our subsurface velocity model building and imaging approach...

The plug drum effect, or why your microseismic events may not be where you think they are

Guillaume Bergery, Zhishuai Zhang, Jing Du, D. Diller, T. Shuck, B. Fish

Unconventional Resources Technology Conference (URTEC)

.... An accurate velocity model is required to accurately locate microseismic events. An initial velocity model is usually built using a sonic log...

Three-Dimensional Depth Imaging of Seismic Data, with Examples from the Overthrust Belt of Southwestern Wyoming

Alvin K. Benson

Wyoming Geological Association

... (a) the complications produced by rapid lateral velocity changes, velocity pull-up, etc., and (b) the necessity of using a depth imaging process versus...

-- no title --

Ehsan, Athar

Search and Discovery.com

... requires very high-resolution technique. Conventional velocity model building techniques such as ray-based tomography and migration velocity analysis outputs...

Abstract: 3D Time Domain Full Waveform Inversion Based on Multiscale Adapted Variable Grid Method Case Study Majunga Basin East African Coast; #91204 (2023)

Mukiibi Ssewannyaga Ivan, Jian-Ping Huang, Zi-Ying Wang, Jidong Yang, Jin Keji

Search and Discovery.com

... techniques such as ray-based tomography and migration velocity analysis outputs inaccurate results (Yong, et al.,2018). In this paper we have studied 3D...

Abstract: Pore Type and Permeability Predictions in Carbonate Drillholes by Comparing the Velocity and Porosity Logs ("Velocity-Deviation Log"), by F. S. Anselmetti, G. P. Eberli, and L. A. Melim; #90956 (1995).

Search and Discovery.com

Accurate Depth Conversions Reduce Risk

Larry C. Luton, Corine Prieto

GCAGS Transactions

... is not a new concept. The challenge lies in the proper selection of velocity data and model types that will generate accurate depth maps for evaluation...

Experiments and Characteristic Analysis of Mud Filtrate Invasion in Low Porosity and Low Permeability Sandstone Reservoir

Search and Discovery.com

Abstract: Application of a Tomographic Velocity Model to the Prestack Depth Migration of a Buried Valley; #90172 (2014)

Oluwafemi Ogunsuyi, Douglas R. Schmitt

Search and Discovery.com

...Abstract: Application of a Tomographic Velocity Model to the Prestack Depth Migration of a Buried Valley; #90172 (2014) Oluwafemi Ogunsuyi, Douglas R...

New perturbation-based traveltime approximation for elastic VTI media

Shibo Xu, Alexey Stovas, Xingguo Huang

International Meeting for Applied Geoscience and Energy (IMAGE)

... the quality of the data processing greatly Introduction Velocity analysis allows estimating subsurface velocity by measuring the arrival times...

EXTENDED ABSTRACT: Geological and Geophysical Integration to Estimate the Thermal State in the Gulf of Mexico Basin

Joel Rosales Rodríguez

GCAGS Transactions

... velocity ranges for the upper continental crust, the lower continental and oceanic crust, the high-velocity layer, and the uppermost lithospheric mantle...

Abstract: The Two Seasonal Characteristics of Pahang River, Pahang, Malaysia (Paper A24)

Muhd. Barzani Gasim, Mohd. Ekhwan Toriman, H. T. Hii, I. L. Pan

Geological Society of Malaysia (GSM)

... of the velocity ranged from 0.31 to 0.58 m/s and river flo was ranged from 153.28 to 439.68 m³/s. For water quality analysis; pH range from 7.2 to 7.6...

Pore-Structure and Petrophysical Characteristics of Hamelin Pool Stromatolites and Associated Cemented Coquina Beds

Search and Discovery.com

Integrated Seismic Processing challenges in Karstified terrain of PNG Fold Belt

Search and Discovery.com

Abstract: Unconventionals Acoustic Velocities: Model Development from Acoustic Microscope Measurements;

Alessandra Simone, Lori Hathon, Michael Myers

Search and Discovery.com

... an accurate measure of the velocity. The large acoustic microscope wavelength eliminates the need for ray tracing. One inch diameter core plugs...

Two-dimensional seismic refraction tomography of a buried bedrock valley at Hallsands beach, Devon, United Kingdom

Eric B. Avalos, David H. Malone, Eric W. Peterson, William P. Anderson, and Roland W. Gehrels

Environmental Geosciences (DEG)

... to the beach and 7 normal to the beach, with either 12 or 24 geophones at 5-m (16-ft) spacing. Eight sediment cores were used to calibrate the velocity model...

Enhanced ray-based tomography method

Jonathan Liu

International Meeting for Applied Geoscience and Energy (IMAGE)

... (shown in Figure 1). The initial velocity model (shown in Figure 2) is built by using the NMO velocity analysis at the two midpoints (3000m and 6000m...

Fracture Identification and Evaluation Using S Waves, by Bob Hardage, #40792 (2011).

Search and Discovery.com

Measurements and Analysis of Settling Velocities of Natural Quartz Sand Grains

Jumpei Baba, Paul D. Komar

Journal of Sedimentary Research (SEPM)

... diameter as computed with equation (1), making Di the most logical "size" to represent the grain in the analysis of its settling velocity. An analysis...

Statistical depth imaging through complex cluttered near-surface with path summation

Andrey Bakulin, Ilya Silvestrov, Maxim Protasov

International Meeting for Applied Geoscience and Energy (IMAGE)

... velocity analysis by path-integral seismic imaging: 81st Annual International Meeting, SEG, Expanded Abstracts, 3898–3902. Decker, L., and S. Fomel...

Porosity Mapping Using Seismic Interval Velocities, Natuna L–Structure

D. R. Eyles, J. A. May

Indonesian Petroleum Association

... has been mapped using a seismic stratigraphic approach. From log data, crossplots were prepared of porosity versus interval velocity for both...

Integration of Geological Data on Seismic Sections: GEOLOGICAL NOTES

L. F. Ivanhoe

AAPG Bulletin

... of errors in integrating subsurface geology and seismic data are: (1) incorrect well points, (2) velocity errors, (3) geometric errors, and (4) projection...

About the importance of the horizontal components of the wavefield for a well-constrained velocity inversion: 3-C versus 1-C inversions

Isabelle Dumont, Sophie Beauprêtre, Anaïs Lavoué, Dan Hollis, Chloé Gradon

International Meeting for Applied Geoscience and Energy (IMAGE)

...About the importance of the horizontal components of the wavefield for a well-constrained velocity inversion: 3-C versus 1-C inversions Isabelle...