Wave Equation Prestack Depth Migration for Deep Gulf Coast Prospecting, Morgan Brown, Joe Higginbotham, and Cosmin Macesanu, #90093 (2009)

Search and Discovery.com

Visualization-Based Volume Interpretation Leads to Robust Identification of Stratigraphic Features of Deep Marine System

Search and Discovery.com

Spectral Decomposition in a Heavy-oil and Bitumen Sand Reservoir

Carmen C. Dumitrescu, Larry Lines

AAPG Special Volumes

... reservoirs using AVO analysis: A 3-D seismic case history using the Geostack technique: Geophysics, v. 59, p. 13621376, doi:10.1190/1.1443695.Fay, M., J...

Pore Pressure Prediction Based on High Resolution Velocity Inversion in Carbonate Rocks, Offshore Sirte Basin - Libya; #40551 (2010)

Robert M. Gruenwald, Javier Buitrago, Jack Dessay, Alan Huffman, Carlos Moreno, Jose Maria Gonzalez Munoz, Carlos Diaz, Khaeri Segayer Tawengi

Search and Discovery.com

...., Houston, TX 2 Abstract ResidualTM velocity analysis was employed to refine the input gathers and velocity field for pressure prediction in Cretaceous...

Fast and efficient structure-oriented preconditioning with on-the-fly dip estimation

Rodrigo Felicio Fuck, Lorenzo Casasanta

International Meeting for Applied Geoscience and Energy (IMAGE)

... preconditioning leading to smoother velocity updates will not necessarily lead to poorer data fits but may indeed produce comparable or even flatter common-image...

Seismic Foldout: New plays in Southern Santos Basin revealed by large-scale, high quality 3D Multi-Client seismic

Milos Cvetkovic, Francisco Colina, TGS

GEO ExPro Magazine

.... For Fast Track model building, we are updating Vp model with reflection-based tomography using non-parametric moveout picker and invert for global, dip...

Active Source Sparse Imaging Using Permanent SADAR Arrays

Derek Quigley, Paul A. Nyffenegger, Kevin D. Hutchenson, Jonathan Yelton

Carbon Capture, Utilization and Storage (CCUS)

... density receiver gathers using conventional processing methods, and improvement using beamforming to target specular reflections from specific survey...

Improved Subsurface Imaging and Interpretability Through Broadband Reprocessing of Legacy Seismic Data: Examples from North West Shelf Australia

Stephen Malajczuk, Rajesh Saklani, Dean Clark, David Eastwell

Petroleum Exploration Society of Australia (PESA)

... and deterministic methods depending on the signal component. Header information like water velocity, reflection coefficient of the water/air...

Risk Reduction for Prospecting in the Unconventional Niobrara Play

Tony Rebec, Marino Pareja

Unconventional Resources Technology Conference (URTEC)

... (Vermeer, 2001) migrated gathers, estimating residual velocities in each azimuth sector, and then fitting an ellipse to the sectored results using least...

Abstract: 3D Seismic Imaging in the Pakistan Foothills: A Case History; #90172 (2014)

Victor Dolgov, Rob Vestrum, Jon Gittins, Géza Wittman

Search and Discovery.com

...) full migrated section for each control line and (2) migrated image gathers for each analysis point along the control lines. Figure 3: Interactive PSTM...

Examining the significance of the converted-modes beneath an ultra-high-velocity caprock: Physical modeling and a Gulf of Mexico salt proximity VSP survey

Jingjing Zong, Yukai Wo, Jizhong Yang, Nikolay Dyaur

International Meeting for Applied Geoscience and Energy (IMAGE)

... at the top of the anhydrite in a vertical seismic profiling survey geometry. Under the common acoustic assumption of seismic velocity model building...

Geophysical Study of a Magma Chamber Near Mussau Island, Papua New Guinea

S. V. Dadisman, M. S. Marlow

Circum Pacific Council Publications

... migration, deconvolution, normal moveout (NMO) correction, common depth point (CDP) stacking, and bandpass filtering. Shot gathers and frequency spectra...

Abstract: A 3D pre-stack depth migration case history from the South China Sea

Refik Oezsen, Mark Crawley, Wan Ismail Wan Yusoff, Abdul Rahim Md. Arshad

Geological Society of Malaysia (GSM)

... problem and the objectives of the project • 3D velocity-depth model building • Pre-stack depth migration results • Image enhancement by using residual move...

EXTENDED ABSTRACT: Regional Geology of Deep Water Salt Architecture, Offshore Gulf of Mexico

Chowdhury, Abu and Lopez-Mora, Simon

GCAGS Transactions

... was picked using both the sediment velocity migration and the mapped time data. The subjacent sections were then migrated with salt velocity...

Reservoir Modelling and Amplitude Analysis, South Lho Sukon, N. Aceh

J. C. den Boer, R. O. Ugland, W. Soeria Atmaja

Indonesian Petroleum Association

.... The shotpoint ranges used in the amplitude analysis are indicated ON and OFF. Figure 3. Seismic section BP86-56, flattened on the L. Seurula Reflection...

Abstract: The Long and Short Solutions of Near-Surface Anomalies; #90286 (2017)

Ralph Bridle

Search and Discovery.com

... as direct measurement by upholes or analysis of source gathers. The models may illuminate the geologic horizons in the time section, but pose additional...

Abstract: Evaluation of Different Fiber Optic Cables For Near-Surface Reflection Seismic; #91204 (2023)

Anton Egorov, Pavel Golikov, Andrey Bakuli, Konstantin Tertyshnikov, Roman Pevzner

Search and Discovery.com

...Abstract: Evaluation of Different Fiber Optic Cables For Near-Surface Reflection Seismic; #91204 (2023) Anton Egorov, Pavel Golikov, Andrey Bakuli...

Enhancing full-waveform inversion with a deep-learning approximated inverse Hessian: A field data application

Mustafa Alfarhan, Matteo Ravasi, Fuqiang Chen, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... the BB method has a stronger update in the shallow part compared to our method final velocity model. Imaging is further carried out using these three...

Case Study of a Cadomin Gas Reservoir (Leland) in the Deep Basin: From Deterministic Inversion to Neural Network Analysis, #10732 (2015).

Carmen Dumitrescu, Fred Mayer

Search and Discovery.com

... of several properties over the target interval show a good separation between gas sand, shale and coals. AVO analysis was performed using Fatti’s equation...

Abstract: Statics Preserving Sparse Radon Transform; #90224 (2015)

Nasser Kazemi

Search and Discovery.com

... elimination: J. Can. Soc. Expl. Geophys, 22, 44–55. Sacchi, M. and T. Ulrych, 1995, High-resolution velocity gathers and offset space reconstruction...

Lithology Identification Using Amplitude Variations with Offset: Examples from South Sumatra

Soman Chacko

Indonesian Petroleum Association

... distances may range from a hundred feet to a few thousand feet (Figure 4). Thus, reflection data within CDP gathers contain angle of incidence effects...

Acoustic and Elastic Modeling of Seismic Time-Lapse Data from the Sleipner CO2 Storage Operation

R. J. Arts, M. Trani, R. A. Chadwick, O. Eiken, S. Dortland, L. G. H. van der Meer

AAPG Special Volumes

... velocity changes. TUS = top Utsira sand; BUS = base Utsira sand; TWT = two-way traveltime.Two normal moveout (NMO)-corrected common-midpoint (CMP) gathers...

Quantitative comparison of active and passive surface wave data obtained from distributed acoustic sensing (DAS) and three-component geophones

Koichi Hayashi, Hayato Nonaka, Peter Hubbard, Yasuhiro Yokota, Kensuke Date, Kazuhiko Masumoto, Takaaki Taira, Kenichi Soga

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Figures 6 and 7 show the active shot gathers (a) generated by a sledge hammer and their phase velocity images (b) calculated by a phase shift and stack...

Seismic Diffraction Imaging of Reservoir Fractures with DAS Seismic Data in a Horizontal Well

Brian Fuller

Unconventional Resources Technology Conference (URTEC)

... in a surfaceconsistent manner to minimize source amplitude and source-wavelet variations between surveys. Corresponding common source gathers (gathers...

Seismic Anisotropy Modeling from Well Log in Talang Akar Formation, South Sumatra, Indonesia; #41360 (2014)

Thariq Guntoro, Intan Andriani Putri1, and Dwa Desa Warnana

Search and Discovery.com

..., 1980, Quantitative seismology: Theory and methods: W.H. Freeman and Co., 700 p. Alkhalifah, T., 1997, Velocity analysis using nonhyperbolic moveout...