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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

Depth Imaging Seismic Data to Help Delineate Gas Reservoirs in Southwest Wyoming

Alvin K. Benson

Wyoming Geological Association

... to the common reflection point assumption, and imaging will be applied after stack. When the subsurface structure is complex, two equally important...

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...

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...

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...

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...

AVO Attributes for Successful Exploration and Field Development: A Case Study From Sarawak Basin, Offshore Malaysia

Norbert Van de Coevering, Rusdinadar Sigit, Reza Lasman

Indonesian Petroleum Association

... was carried out for a small number of wells. Using the results to predict hydrocarbon occurrences using real seismic gathers is somewhat challenging...

Using Multi-Azimuth Walkaway VSP Data to Image a Tight Gas Bearing Permo-Carboniferous Glaciogenic Reservoir

Search and Discovery.com

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...

High-Resolution Anisotropic Earth Model Building on Conventional Seismic Data Using Full-Waveform Inversion: an Offshore Australia Case Study

Bee Jik Lim, Denes Vigh, Stephen Alwon, Saeeda Hydal, Martin Bayly, Chris Manuel, Dimitri Chagalov, Gary Hampson, Dimitri Bevc

Indonesian Petroleum Association

... to using FWI is the need for low frequencies to be present in the seismic data, or, the initial starting velocity model must contain the correct low...

Abstract: Data Evaluation in AVO Analysis, by Yang Zhili; Fan Guozhang; Lv Fuliang; Wang Bin; Yang Taotao; #90163 (2013)

Search and Discovery.com

Abstracts: Determining Elastic Constants of an Orthorhombic Material by Physical Seismic Modeling; #90173 (2015)

Faranak Mahmoudian, Gary F. Margrave, P. F. Daley, and Joe Wong

Search and Discovery.com

... of Calgary [email protected] and Gary F. Margrave, P. F. Daley, and Joe Wong Summary Analysis of group velocity measurements taken from a model made...

Abstract: Low-frequency vibroseis acquisition experiment in Saudi Arabia; #90254 (2016)

Nabil Khadiri Yazami, Van C. Do, Waleed N. Omar, Thierry L. Tonellot

Search and Discovery.com

... specifically for full waveform inversion. Excellent quality low frequencies were acquired using 10 vibrators per shot point, and sweeping for 24...

Integrating Seismic Imaging and Inversion

Francisco Bolivar, Richard Cooper, Lucy MacGregor, Jacqueline O’Connor, Jeff Codd, David Kessler

GEO ExPro Magazine

... and reduction in turn-around time as duplication of steps is avoided. Using PSTM Gathers in Inversion Today depth imaging is at the core of seismic data...

AVO Response for Gas Sands of the Monserrate Formation, Upper Magdalena Valley of Colombia

C.J. Dueñas, M. G. de Freitas, A. Mantilla

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... step consists of well log-based AVO modeling using the Greenberg & Castagna equation to model the shear wave velocity (Vs) from P-wave logs; Gassmann...

Abstract: Improving the Statics Solution through De-migration: A Canadian Foothills A-PSDM Case History; #90172 (2014)

Jiwu Lin, Sylvestre Charles, Josef Heim

Search and Discovery.com

... building iterations using the new statics solution. The additional iterations benefited from the improved signal to noise ratio on the Common Image Point...