Revealing the subsalt in Garden Banks with a sparsely-shot TPS OBN and FWI

Michael Merritt, Guido Baeten, Vishram Rambaran, Karen Godfrey, Kevin Bianchini, Tara Brothers, Frederic Chelminski, Alex Hao, Huawei Gao, Yingxue Su, Zhiyuan Wei

International Meeting for Applied Geoscience and Energy (IMAGE)

... further-improved focusing, migration swing noise and residual multiples are commonly observed in places associated with low-velocity zones, making this full...

Landward Migration of Barrier Island Sands Under Stable Sea Level Conditions: Plum Island, Massachusetts: REPLY

J. Richard Jones, Barry Cameron

Journal of Sedimentary Research (SEPM)

...Landward Migration of Barrier Island Sands Under Stable Sea Level Conditions: Plum Island, Massachusetts: REPLY J. Richard Jones, Barry Cameron 1979...

Abstract: Kirchhoff Imaging with Adaptive Greens Functions for Compensation for Dispersion, Attenuation, and Velocity Imprecision; #90187 (2014)

Andrew V. Barrett

Search and Discovery.com

... of frequency. This may be sufficient to define the velocity relationship to be used for migration, or it might not. Inherent simplifications in the physical...

3D Seismic Acquisition Design in a Volcanic Environment Using Simple 2D Dynamic and 3D Static Seismic Acquisition Method Analysis in the North West Java Basin

Adib Banuboro, Gilang Wiranda, Agung Adi Susanto, Alpius Dwi Guntara, Dwa Desa W, Firman Syaifuddin

Indonesian Petroleum Association

... ambiguity to justify a geological layer especially in volcanic environment that has a complex structure that affect the velocity. The far offset analysis aims...

The use of FWI in coal exploration

Mehdi Asgharzadeh, Maryam Bahri, Milovan Urosevic

Petroleum Exploration Society of Australia (PESA)

... FD operator (used in this analysis), n=8. This resulted in velocity and density models with 400 meters length in either directions. Velocity...

Advances in Interpretation of Offshore Seismic Data: ABSTRACT

Judson B. Hughes, Jr., J. R. Harris, S. O. Patterson

AAPG Bulletin

... by the proper use of velocity data in seismic wave-front methods of migration. Two-dimensional plots of seismic depth sections can be produced...

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

...-end technology in velocity model building and seismic wave migration for imaging complex near surface structure having small-scale geological...

A comprehensive approach to paleo-residual gas (PRG) analysis „ A gas field study

Tracy Gunness, Randy Partap, Anthony Riccardi, Shenghui Li

International Meeting for Applied Geoscience and Energy (IMAGE)

...), not considering secondary migration and charge. Figure 2. Amplitude, velocity and CSEM response over the field. Bottom-up analysis The bottom-up analysis...

Abstracts: Gabor Multipliers for Seismic Modeling and Wavefield Propagators; #90173 (2015)

Michael P. Lamoureux, Gary F. Margrave, and Peter C. Gibson

Search and Discovery.com

... transform, and allowing the design and analysis of signal processing algorithms in a localized frequency domain. These algorithms can be used...

Into the Abyss!

William Wills

GEO ExPro Magazine

... for subsalt settings such as Pre-stack Depth Migration (PSDM) are still sensitive to velocity error and vertical resolution, especially in areas...

Fracture Interpretation in the Barnett Shale Using Macro and Microseismic Data

Murray Roth and Amanda Thompson

Search and Discovery.com

... models of the Muenster Arch indicate that the primary modern-day stress is to the southwest, supporting the 230-240 degree estimate. Time-lapse analysis...

Abstracts: Feasibility of 4D Multicomponent Seismic Methods for Monitoring CO2 Storage in the Redwater Leduc Reef, Alberta; #90173 (2015)

Taher M. Sodagar and Don C. Lawton

Search and Discovery.com

... pre-stack depth migration (PSDM) in Paradigm GeoDepth software. The PP and PS velocity model used for the migration was created by converting...

Olympus Rising: A Step Change in North Carnarvon Basin Imaging

Julian Mather, Nicolas Hand, Spectrum

GEO ExPro Magazine

... Time Migration) and as the PSDM (Pre-Stack Depth Migration) nears completion the astounding fidelity of the data is bringing new insights to rejuvenate...

Normal Moveout and Dip Moveout, C. L. Liner, #40037

Search and Discovery.com

AVA attribute estimation from misaligned seismic gathers using U-Net

Ammar Ghanim, Ricard Durall, Norman Ettrich

International Meeting for Applied Geoscience and Energy (IMAGE)

... are mainly caused by inaccuracies in the velocity model used during migration. Aligning these reflections in seismic normal moveout (NMO) corrected...

Middle and Upper Jurassic Depositional Environments at Outer Shelf and Slope of Baltimore Canyon Trough

L. A. Gamboa , M. Truchan , P. L. Stoffa

AAPG Bulletin

... to the interval velocity values obtained from the analysis of the 0-4 km (0-13,100 ft) semblance velocity scans, we were able to confirm our velocity...

Passive Margins: Eroded Carbonate Platform Margin--The Blake Escarpment off Southeastern United States

William P. Dillon, Anne M. Trehu, Page C. Valentine, and Mahlon M. Ball

AAPG Special Volumes

... areas for profiling anyway, because of rough surfaces and cavities produced by karstification, and occurrence of common high-velocity layers shallow...

Efficient physics-informed Bayesian inversion of VSP and hydrofrac data

Tian Qiao, George Turkiyah, Gerard T. Schuster

International Meeting for Applied Geoscience and Energy (IMAGE)

... such as that the correct migration velocity, source wavelet, denoising operations, demultiple filter, and aperture were used for imaging. This suggests...

Basin Analysis Points to New Plays in the Arctic Islands

Search and Discovery.com

...Basin Analysis Points to New Plays in the Arctic Islands Basin Analysis Points to New Plays in the Arctic Islands Keith Dewing* Geological Survey...

Resolving geological complexity with legacy streamer survey, part 2: Application of DM FWI to sub-optimally acquired data

Nebojsa Pralica, Milos Cvetkovic, Seet Li Yong, Daniel Davies, Jon Rogers

International Meeting for Applied Geoscience and Energy (IMAGE)

... Inversion (DM FWI) has been established as a proven toolkit to update velocity models. Mao et al. (2020) demonstrated its success for datasets where long...

Seismic Foldout: Contourites: When everything going sideways saves the day

Neil Hodgson, Karyna Rodriguez, Lauren Found, Searcher

GEO ExPro Magazine

... (building mud and silt drifts at the same time), creation of asymmetric levees in slope systems that lead to channel migration, evolution...

Abstract: Elastic Finite-difference Modeling for Testing Acquisition and Processing Methods; #90187 (2014)

Peter Manning, Joe Wong, and David Henley

Search and Discovery.com

... zone at a depth of 500 metres. Modeling surface-wave noise caused by velocity/density anomalies The example in Figures 1 and 2 is presented to show...

AAPG/Datapages Discovery Series No. 7, Multidimensional Basin Modeling, Chapter 3: Modeling of Secondary Petroleum Migration Using Invasion Percolation Techniques

Daniel J. Carruthers

AAPG Special Volumes

... as a source. In fact, the migration velocity was directly proportional to the feeding rates and volumes: the higher the feeding volume, the higher the velocity...

Mesozoic to Cenozoic Depositional Environments & Fluid Migration Within the Caswell Sub-basin: Key Insights from New Interpretation & Modelling of the Schild Phase 2 3d

Jarrad Grahame

Petroleum Exploration Society of Australia (PESA)

... analysis, comprising the identification of extensive vertical fluid / gas migration features, and fluvio-deltaic and submarine channel complexes...

EXTENDED ABSTRACT: From Isotropic to Tilted Transverse Isotropic Pre-Stack Depth Migration

Nicolas Chazalnoel

GCAGS Transactions

... residue move-out correction during the post-migration stage. While this assumption is generally valid for flat layered sediment and velocity profile...