Abstract: Three-Dimensional Seismic Displays as Interpretation Aid, by R. C. Farrell; #90972 (1976).

Search and Discovery.com

Better Subsalt Imaging Integrating 3-D Seismic and Full Tensor Gradient Data: Gemini Field Case Study: Abstract

John Prutzman

Houston Geological Society

.... This could be caused by possible velocity errors in converting the 3-D time migrated data to depth or to the limitation of the seismic data to properly...

ABSTRACT: Wavelet Dispersion and Bright-Spot Detection, by Peter C. Luh; #91022 (1989)

Search and Discovery.com

Abstract: 3-D Seismic Exploration in the Ames Hole, by K. R. Ainsworth; #90957 (1995).

Search and Discovery.com

Williston Basin Red River Formation: Exploration Success, Development Failure: ABSTRACT

Eric H. Johnson

AAPG Bulletin

... River prospects. Our attempts at mapping prospects with seismic data are hampered by velocity errors and data resolution. Most Red River fields...

Identification of Source Rocks on Wireline Logs by Density/Resistivity and Sonic Transit Time/Resistivity Crossplots: REPLY

B. L. Meyer, M. H. Nederlof

AAPG Bulletin

... somehow "flipped" between sonic velocity and sonic transit time. The first sentence of our abstract (p. 121) should read: "Source rock formations...

ABSTRACT: Confirming Depth Models using Differential Wide Aperture Seismic; #90061 (2006)

James H. Leven

Search and Discovery.com

...-stack depth migration or for precise depth conversion, particularly for field definition. Normal moveout (NMO) “velocity” analysis is a relatively...

Abstract: Wavefront Picking for 3D Tomography and Full-Waveform Inversion; #90319 (2018)

Abdullah A. Theyab

Search and Discovery.com

... gathers. The objective of our work is to compute a smooth initial velocity model for multiscale fullwaveform inversion (FWI). Using interactive software...

Seismological Methods and the Search for Geothermal Resources

David Butler, Paul Larry Brown

Rocky Mountain Association of Geologists

... and velocity errors, the location should be good to within k ‘h km in plan and ? 1 km in depth. Errors in the computed location will increase outside...

Value of conventional PS-wave velocity analyses for PSDM of deep-water OBS data

James Gaiser, James Simmons, Moacyr de Souza Bezerra

International Meeting for Applied Geoscience and Energy (IMAGE)

... PSwaves have superior shallow resolution compared with Pwave, they are poorly positioned in depth due to velocity errors, which will adversely affect...

Potential Field Data Guided Seismic Forward Modelling of Basement Structures: A Case Study from Offshore Nile Delta Basin

Said Hanafy, Shastri L. Nimmagadda, Sharaf Eldin Mahmoud

Petroleum Exploration Society of Australia (PESA)

... reflections interfering with the basement reflector are analysed and the observed errors in the velocity models are accordingly reconciled based...

Seismic Reservoir Characterization of the Abadi Gas Field, Masela PSC Block, West Arafura Sea, Eastern Indonesia

Shinji Matsuura, Shin Saito, Yoshiro Ishii, Hiromi Honda, Ayato Kato, Takao Yagi

Indonesian Petroleum Association

.... It is also possible that the core plug velocity has some errors because it is not measured completely under in-situ conditions. In addition...

A Practical Review of Migration Issues and Solutions; #40723 (2011)

Ian F. Jones

Search and Discovery.com

..., the method of velocity model building must be tailored to the type of depth migration algorithm we intend to use. We nowadays commonly have available...

Joint physics-based and data-driven time-lapse seismic inversion: Mitigating data scarcity

Yanhua Liu, Shihang Feng, Ilya Tsvankin, David Alumbaugh, Youzuo Lin

International Meeting for Applied Geoscience and Energy (IMAGE)

... to the limited physics information and simulation errors in the velocity-generation algorithm. The testing (inversion) for one seismic survey takes only...

Robust phase-driven time warping FWI for salt reconstruction

Guanghui Huang, Alejandro Alcudia-León, Jaime Ramos-Martínez, Nizar Chemingu

International Meeting for Applied Geoscience and Energy (IMAGE)

... structures. Introduction FWI for reconstructing salt and geobodies with large velocity contrasts compared to surrounding sediments requires special...

Critical Analysis of Stack Seismic Systems

L. E. Nugent, Jr.

AAPG Bulletin

..., if shotpoints are not in a zone of the same velocity, errors are introduced which may not be detected on the compiled record sections and which may...

ABSTRACT Monitoring, Verification, and Accounting of CO2 Fate in Geologic Formations: Linking the Chemical and Physical Effects of CO2 Injection to Geophysical Parameters, #90103 (2010)

Tiziana Vanorio, Gary Mavko

Search and Discovery.com

...-fluid changes are purely mechanical and hence inadequate for measuring the effects of CO2-bearing reactive fluids on in-situ seismic velocities. Errors...

Synthetic Seismograms from Vibracores: A Case Study in Correlating the Late Quaternary Seismic Stratigraphy of the New Jersey Inner Continental Shelf

Dominic Esker , Robert E. Sheridan , Gall M. Ashley , Jeffrey S. Waldner , David W. Hall

Journal of Sedimentary Research (SEPM)

... of the sediments with grain size, but also derives from possible small errors in measurement of velocity and density and small errors in determining...

Impact of Pre-Stack Depth Migration on the Anama Prospect, Papuan Foreland Basin

K. Bradey

Papua New Guinea (PNG) Petroleum Convention Proceedings

... layers. These errors tend to accumulate with depth, as well as accentuating the oscillatory nature of the interval velocity analysis. Figure 9...

Practical solutions for reflection-driven FWI and application to Gulf of Mexico datasets

Max Liu, Ren-douard Plessix, Yi Yang, Jeffrey Vander Hurst, Na Shan, Rob Schelstrate, Colin Perkins, Vanessa Goh

International Meeting for Applied Geoscience and Energy (IMAGE)

... the velocity contrast between salt and sediment creates a favorable environment for image defocusing when even small salt errors are present (Dellinger et...

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)

... larger than the location errors normally associated with surface microseismic monitoring. For borehole velocity calibration the exact same principle...

DEPTH CONVERSION, Jeremy J. Zimmerman, Search and Discovery Article #40023, 2001

Search and Discovery.com

Practical Application of Adaptive Least-Squares Reverse Time Migration (LSRTM) to Advance Field Development and Uncover New Reserves in the Subsalt Provinces

Chong Zeng, Shuqian Dong, Zhaohong Wu, Jean Ji, Darrell Armentrout, Bin Wang

GCAGS Transactions

... constrained dynamic warping to correct the misalignments between synthetic and input waveforms due to short-wavelength velocity errors. The waveform...

Large-Scale Pore Pressure Prediction After Pre-Stack Depth Migration in the Caspian Sea (Geophysics Paper 24)

Norbert van de Coevering, Hazim Hameed Al-Dabagh, Liau Min Hoe, Tony Jolly

Geological Society of Malaysia (GSM)

... are made in shales and measurements are in sands). Subsequently, various effective stress–velocity relationships predict pore pressure, which...

Simultaneous Inversion for Microseismic Event Location and Velocity Model in Vaca Muerta Formation

Zhishuai Zhang, Jing Du, Fuchun Gao

Unconventional Resources Technology Conference (URTEC)

...Simultaneous Inversion for Microseismic Event Location and Velocity Model in Vaca Muerta Formation Zhishuai Zhang, Jing Du, Fuchun Gao URTeC: 2652022...