Seismic diffractions separation and imaging based on convolutional neural network

Jiaxing Sun, Jidong Yang, Zhenchun Li, Jianping Huang, Jie Xu

International Meeting for Applied Geoscience and Energy (IMAGE)

..., Separation, imaging, and velocity analysis of seismic diffractions using migrated dip-angle gathers: 78th Annual International Meeting, SEG, Expanded...

Abstract: Nonlinear Inversion of the P-wave P-wave Reflection Coefficient Data, by A. J. Pate; #90952 (1996).

Search and Discovery.com

Benefits and uplift of focused post-migration gather conditioning over prospect specific areas - An Indonesian case study

David Jessup, Dave Goulding, Andy Kalil

Southeast Asia Petroleum Exploration Society (SEAPEX)

.... The input data for the conditioning were raw PSDM TWT migrated gathers which were analysed using full-volume QC attributes in order to design an optimized...

Developing a New Technique Through Partnering with Contractors: Reservoir Prediction Utilizing AVO Walkaway VSP Data to Calibrate Surface Seismic Gathers, a Case Study in Indonesia

Patricia L. C. Henderson, Dan Hampson, Scott Leaney, Nigel Smith, John Rice, Dave Boreham

Indonesian Petroleum Association

... × 125M GRID SORTING OF THE EIGHT GROUPS OF 30 FOLD GATHERS INTO 240 FOLD "SUPER GATHER" NMO CORRECTION USING 3D STACKING VELOCITY FIELD RADON...

High-EffortŽ Seismic Acquisition: Improving Image Detail; #41568 (2015)

David C. Henley, Kevin Hall, Henry Bland, Eric Gallant, Gary Margrave, Malcolm Bertram

Search and Discovery.com

... short period multiples, and equalize reflection strength over angle (Henley, 2004). Moveout velocity and statics NMO Velocity analysis and statics...

Bridging the gap: Deep learning on seismic field data with synthetic training for building Gulf of Mexico velocity models

Stuart Farris, Robert Clapp

International Meeting for Applied Geoscience and Energy (IMAGE)

.../10.1190/1.3627449. Park, M. J., and M. D. Sacchi, 2020, Automatic velocity analysis using convolutional neural network and transfer learning: Geophysics...

Taking Advantage of RTM Surface Offset Gathers for Iterative Salt Modeling and Subsalt Reservoir Image Enhancement

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Seismic Velocity Anisotropy in Chimore Area, Bolivia

Michael Fry, Eloy Martinez, James Baker, Mark Wallace

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

...-sectored) velocity analysis technique not only demonstrated highly variable azimuthal velocity anisotropy present in the area, but also allowed its...

Q tomography workflow: Land case study in the Eagle Ford Play

Itai Sharabi, Matan Shustak, Orly Kletenik-Edelman, Ronit Levy, Zvi Koren

International Meeting for Applied Geoscience and Energy (IMAGE)

... for the refraction data and the residual moveouts automatically picked along full-azimuth reflection angle domain depth common image gathers (Shustak...

Automated velocity model building using Fourier neural operators

Guanghui Huang, Sean Crawley, Ramzi Djebbi, Jaime Ramos-Martinez, Nizar Chemingui

International Meeting for Applied Geoscience and Energy (IMAGE)

...Automated velocity model building using Fourier neural operators Guanghui Huang, Sean Crawley, Ramzi Djebbi, Jaime Ramos-Martinez, Nizar Chemingui...

Depth correction using velocity for structure calibration at Leviathan Field, offshore Israel

Yijie Zhou, Brad Christensen, Lin Christianson

International Meeting for Applied Geoscience and Energy (IMAGE)

... and angle/offset gathers) and well data are converted to time domain first using the original migration velocity, which is followed by a detailed well...

Velocity model building assisted by potential field methods: A case study from the Red Sea

Wilson Ibanez, Federico Ceci, Giuseppe Bancala, Andrea Sirtori, Luciana De Luca, Miquel Marin, Vivian Robertson, Briseida Palacios, David Korte

International Meeting for Applied Geoscience and Energy (IMAGE)

... velocity-density conversion law from rock physics analysis of 14 available wells. (c) Density model built using conversion laws. (d) Example...

Anisotropic full-azimuth velocity model building using joint reflection-refraction tomography

Matan Shustak, Itai Sharabi, Orly Kletenik-Edelman, Elive Menyoli, Ike Imala, Ronit Levy, Zvi Koren

International Meeting for Applied Geoscience and Energy (IMAGE)

... parts of the model (Figure 5). Figure 5. Prestack local angle domain CIGs (common image gathers). Imaging using initial velocity (A), reflection...

Optimized characterization workflow for naturally fractured reservoirs using seismic anisotropy attributes in the Middle Magdalena Valley basin, Colombia

Oscar Moreno, Enrique Casaña, Luis Figuera, Iván Higuera, Diego García, Jorge Acosta, Benjamin Roure

International Meeting for Applied Geoscience and Energy (IMAGE)

... of azimuthal gathers, yielding attributes associated to Velocity Variations with Azimuth (VVAZ). In this case, anisotropy magnitude is related to the difference...

Near Surface Imaging using Joint Seismic Gravity Inversion

Teguh Suroso, Boko Nurdiyanto, Trilaksita B. Nugraha, Lita Novitasari, Heri Winarto

Indonesian Petroleum Association

.... Velocity Analysis Velocity analysis was performed on seismic gathers using a range of constant velocities. The resulting constant velocity migration...

High-End Model Building Techniques for Revealing a Pre-Carbonate Reservoir Offshore East Natuna Basin, Indonesia

Jun Wang, Yonghe Guo, Yitao Chen, Muhammad Nauvall Juliansyah, Nick Crabtree

Indonesian Petroleum Association

... difficulties for conventional raybased reflection travel-time tomography. Figure 3 - Initial velocity and refraction energy penetration analysis (Depth...

Conditioning Prestack Seismic Data in the Offset-Azimuth Domain; #42462 (2019)

Ritesh Kumar Sharma, Satinder Chopra

Search and Discovery.com

... within common mid-point, or CMP, gathers. Thereafter, the common procedure is to azimuthally sector the gathers (six sectors of 30 degrees each), and put...

Seismic Modeling and Expression of Common Fold-Thrust Belt Structures; #42266 (2018)

Jianjun Li, Shankar Mitra

Search and Discovery.com

... program. The shot gathers and wave propagation files are saved and ready for processing and further analysis. All the velocity models are sharing...

Extracting surface wave dispersion spectra directly from the high-speed train induced vibration

Shengpei Xia, Xinyue Pan, Xiaokai Wang, Wenchao Chen, Jingrui Luo, Haixia Zhao, Wenjing Yan

International Meeting for Applied Geoscience and Energy (IMAGE)

... gathers for extracting the dispersion spectrum. Here, the dispersion spectrum obtained from the synthetic impulsive point source generated using the Ricker...

Confirming Reservoir Geometry and Exploration Opportunity through 5D Interpolation PSDM in The Sub-ophiolite Zone, Banggai Sula Basin, Central Sulawesi

Mufied Ahmad, Dadang Ramdan, Yudi Herdiana, Abdullah Nurhasan, Arif Budi Mulyawan

Indonesian Petroleum Association

... velocity analysis. Several spots in the northern part underneath the ophiolite showed relatively flat gathers after NMO correction with minimum residual...

Seismic Processing Strategies in the Deep Water Kutai Basin … Gendalo Hub Pre-Stack Depth Migration

Xiuyuan Li, Harmit Singh, Joe Zhou, Graham Hodgkiss, Neil Young, Helmut Hsiao

Indonesian Petroleum Association

... approach was taken. This consisted of three major steps: initial model building; iterative residual curvature velocity analysis (RCA) and tomography update...

Leveraging Reflection, Refraction, and Multiple Arrivals from Dual-Sensor Streamer Data for High-Fidelity Velocity Model Building and Imaging

G. Rønholt, J.E. Lie, Ø. Korsmo, B. Danielsen, S. Brown, S. Brandsberg-Dahl, A.V. Mavilio, N. Chemingui, D. Whitmore, M. Farouki

Indonesian Petroleum Association

...Leveraging Reflection, Refraction, and Multiple Arrivals from Dual-Sensor Streamer Data for High-Fidelity Velocity Model Building and Imaging G...

ABSTRACT: Pre-Stack Depth Migration and the Imaging of Complex Structures in the Wyoming Thrust Belt

Richard Postma

Wyoming Geological Association

..., the velocity model is adjusted, and the line is re-migrated. This process is repeated until CMP gathers for the shallow reflector are flat. Diagnostic...

High frequency refraction/reflection full-waveform inversion case study from North West Shelf offshore Australia

David Dickinson, Fabio Mancini, Xiang Li, Kai Zhao

Petroleum Exploration Society of Australia (PESA)

... 6), captures major velocity variations conforming to geology (Figure 3), and overall the corresponding migration gathers are fairly flat. Although...

Imaging Solutions for Geophysical Challenges in South East Asia (Paper A13)

N. El Kady, Z. Mohd Dom, Y. Prasetyo, M. Bayly, G. Nyein, P. Vasilyev, N. Mat Don Ya

Geological Society of Malaysia (GSM)

... are: • Build as accurate velocity model as possible using conventional “global” reflection tomography approach. • Interpret major fault planes...