Uncertainty Analysis for Top Tuban Carbonate Prediction using Velocity Modeling Design in "Aquila" Field, East Java Basin

Ayu Indri Firdani, Azhar Kholiq Affandi, Erik Wahyu Irawan, Kamal, M. Wahdanadi Haidar, M. Freddy Yulisasongko

Indonesian Petroleum Association

...Uncertainty Analysis for Top Tuban Carbonate Prediction using Velocity Modeling Design in "Aquila" Field, East Java Basin Ayu Indri Firdani, Azhar...

Abstract: Cenozoic Uplift and Erosion of the Barents Sea Region - Timing, Causes and Implications, by Jan Inge Faleide; #90177 (2013)

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Random Noise Example

M. S. Howard and S. H. Danbom

AAPG Special Volumes

... in this figure is common to the industry (elevation static corrections, sort to common-depth-point gathers, normal velocity moveout corrections, etc...

Fault Interpretation Problems in the Southeast Barrow Sub-Basin

R. K. Whyte

Petroleum Exploration Society of Australia (PESA)

... gathers and are therefore likely to be at odds with the regional velocity trend. They are also mute dependent, requiring re• analysis after each mute...

Abstract: Understanding the Effect of Near-surface Extreme Velocity Heterogeneities on the Seismic Data in the Arid Environment Through High-fidelity Outcrop-based Models; #91204 (2023)

Ahmad Ramdani, Ilya Silvestrov, Yazki Ibrahim, Andrey Bakulin

Search and Discovery.com

...Abstract: Understanding the Effect of Near-surface Extreme Velocity Heterogeneities on the Seismic Data in the Arid Environment Through High-fidelity...

Shear Velocity Prediction and its Rock Mechanic Implications, #41296 (2014)

Yexin Liu, Zhuoheng Chen, Kezhen Hu

Search and Discovery.com

... velocity and density can be inverted using current advanced pre-stack seismic inversion technique from seismic AVO angle gathers (Russell et al. 2005). Like...

Reflection waveform inversion assisted by full-wavefield imaging

Mikhail Davydenko, Eric Verschuur

International Meeting for Applied Geoscience and Energy (IMAGE)

... update both in data-domain (using data misfit) and model-domain (using extended images and subsurface offset gathers). Our approach allows to handle full...

ABSTRACT: Evolution of a Near-Surface Model in an Area of Complex Topography; #90051 (2006)

Michael L. Pittman, Ralph Bridle, Robert E. Ley, II, Ameera A. Mustafa

Search and Discovery.com

... corrections. In a study area, jebels, wadis, and sabkhas generate large velocity contrasts. The 2D seismic lines were modeled with a single layer velocity model...

Evolution of a Near-Surface Model in an Area of Complex Topography

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South Halfway 3D: An example of a challenging onshore acquisition and subsequent processing and a unique way of performing a prestack elastic inversion on a difficult dataset

Marianne Rauch, Doug Brost, Hassan Odhwani, Aravind Nangarla, Adriana Gordon

International Meeting for Applied Geoscience and Energy (IMAGE)

... depth migrated using a TTI pre-stack depth migration approach. Well data were utilized to build the first velocity model. Using sonic logs, together...

Unraveling US GoM North Green Canyon subsalt complexities with sparse nodes

Katarina Jonke, Jingqian Kang, Sandra Garzon, Gino Alexander, Ganyuan Xia, Gabriel Ritter, Ahmed Afifi

International Meeting for Applied Geoscience and Energy (IMAGE)

... of salt or point out a direction of necessary velocity change if the starting model was too erroneous. Although accelerated algorithm advancement enabled...

Seismic dataset-specific machine learning framework based on pretraining and fine-tuning

Tariq Alkhalifah, Randy Harsuko

International Meeting for Applied Geoscience and Energy (IMAGE)

... by. Since the shot gathers are regularly sampled, we the overlapping velocities, which will result in smooth velocity predictions. Similar to the other tasks...

Fracture Identification with Seismic Data, XinChang Field, China, by Peter Stewart, John Tinnin, James Hallin, and Jim Granath, #40370 (2008).

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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)

... velocity analyses are commonly used to obtain PS-wave velocities for reflection-point binning models, VP/VS ratio models and stacking after moveout...

Multi-survey full-waveform inversion gradient balancing with illumination probing method

James Xu, David F. Halliday, Federico G. Andreasi, Xikai Zhao, James Rickett

International Meeting for Applied Geoscience and Energy (IMAGE)

... inversion reaches the level of 76.88% at iteration 9. The final Kirchhoff depth migration gathers with the inverted velocity using the gradient...

Success Factors for Effective Subsurface Imaging of Overthrust Belt Legacy Seismic Data

Walt Ritchie and Mihai Popovici

Search and Discovery.com

.... This proposed workflow assumed that the initial velocity model would be high-graded using residual curvature (velocity) estimates in the model updating process...

Improving subsalt images using FWI and FWI imaging: A streamer case study at Big Foot

Weihong Fei, Jingru Chen, Min Yang, Leah Grassi, Erik Everson, Paul Bovet, Marin Laomana, Sheree Wold, Alex Yanjun Hao, Chi Chen, Shubin Zeng, Zhiyuan Wei

International Meeting for Applied Geoscience and Energy (IMAGE)

... tomography using RTM surface offset gathers (SOG) was performed to improve the deep background velocity. With a better-defined velocity model...

Improving AVO Fidelity by NMO Stretching and Offset Dependent Tuning Corrections, #41574 (2015).

Yong Xu, Satinder Chopra

Search and Discovery.com

... gathers causes problems in AVO. Coupled with the degrading action of wavelet stretching is offset dependent tuning for thin beds. Even though tuning...

Integrated Seismic Processing Challenges in Karstified Terrain of Papua New Guinea Fold Belt, #42521 (2020).

Subhash Chandra, Michael Szczepaniak, Patrick Haltmeier,

Search and Discovery.com

... of several CMP gathers in order to obtain meaningful stacking velocities. This method, however, fails to improve the stacking velocity analysis in case...

Consideration to Data Driven Solutions for the Acquisition of New Marine 3D Seismic Data

Julie Willmore, Brad Torry, Henrik Roende, Chris Egger, Adriana Thames

GCAGS Transactions

... prestack depth migration (PSDM) volume and the same velocity model. Using this, shot gathers were forward modelled using 20 km offsets. These shot gathers...

Abstract: Robust Surface-Consistent residual Statics and Phase Correction…Part 1; #90224 (2015)

Nirupama Nagarajappa and Peter Cary

Search and Discovery.com

.... After statics and phase correction, the phase variation of wavelet is consistent over neighboring CDPs. On the analysis of CDP gathers, we also note...

Integration of Multicomponet Surface Seismic, Multicomponent VSP and Microseismic in Reservoir characterization

Paul Constance, Jim Simmons, Shihong Chi, Lisa Sanford

Unconventional Resources Technology Conference (URTEC)

... parameters across the project area using surface 3D seismic. The Petrophysical data and downhole seismic (3C3DVSP) were used to calibrate the surface 3D...

Multichannel Profiles Collected in 1982 in the Tonga Region of the South Pacific

Dennis M. Mann

Circum Pacific Council Publications

... to common-depth-point (CDP) gathers to be used for velocity analyses. The data are also stacked using a "brute velocity" model, and the resulting...

Seismic Modelling in 3D for Migration Testing

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... and receiver positions that neither common source gathers nor common receiver gathers have any significant spatial aliasing. This is important because our...

Abstract: Simultaneous P-P and P-S Waveform Inversion Algorithm Using Pre-Stack Time Imaging Method ; #90187 (2014)

Hassan Khaniani, John C. Bancroft, and Eric von Lunen

Search and Discovery.com

... an algorithm that predicts the mode converted P-S wave using the velocity in time. The algorithm is based on a scatter point response in P-wave reflection...