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The AAPG/Datapages Combined Publications Database

Showing 19,404 Results. Searched 200,693 documents.

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Seismic Foldout: FWI Imaging Under Complex Geological Anomalies

Adriana Citlali Ramirez, Simon Baldock, Stuart Fairhead, TGS

GEO ExPro Magazine

... to address the the shallow turbiditic setting that generates signal absorption and scattering, diminishing the image resolution and amplitude continuity...

2023

Anisotropic Pre-Stack Depth Migration in the Cusiana and Cupiagua Sur Fields

J. Checa, M. Mesa, N. Burke, J. Calderon, H. Alfonso, U. Egozi, B. Ver West, M. Yates

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... to the simple initial RMS velocity field. Using this velocity field as an input, common image gathers were generated, and the flatness of the gathers was used...

2006

Seismic Imaging and Interpretive Model Building in the Colombian Andes

Rob Vestrum

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

.... With low fold in the near surface, a low signal-to-noise ratio on the image gathers, and complex horizon geometries, automated velocity-model-building...

2006

Automated velocity modeling with domain transformations

Kevin Gullikson, Arnab Dhara, Ram Tuvi, Mrinal K. Sen

International Meeting for Applied Geoscience and Energy (IMAGE)

...-net architecture to directly transform from shot gathers to a velocity image. A U-net is an encoder-decoder architecture in which the encoder makes...

2024

Rock Physics Guided Velocity Modeling and Reverse-Time Migration for Pore Pressure Prediction and Depth Imaging in Complex Areas

Nader C. Duta, Sherman Yang, Yangjun (Kevin) Liu, Lawrence Cho, Jie Cui

Indonesian Petroleum Association

... a velocity model that not only flattens the CIP gathers but also limits the velocity field to its physically and geologically plausible ranges...

2015

Stacking common-image gathers via the flatten-illumination-similarity method

Chengliang Wu, Huazhong Wang, Bo Feng, Chao Ning, Xianggong Tang

International Meeting for Applied Geoscience and Energy (IMAGE)

...Stacking common-image gathers via the flatten-illumination-similarity method Chengliang Wu, Huazhong Wang, Bo Feng, Chao Ning, Xianggong Tang...

2023

EXTENDED ABSTRACT: Resolving Complex Salt Geometry: Iterative Salt Imaging and Interpretation

Gabriel Ritter, Kenneth Waddell

GCAGS Transactions

... gathers (Huang et al., 2010). TTI anisotropic model building has greatly improved the suprasalt sediment velocity model and RTM 3D angle gathers have...

2011

Converted Waves Seismic Imaging : Importance of Gamma Estimation (Paper P4)

A. G. Mohd Adnan, A. R. Ghazali

Geological Society of Malaysia (GSM)

... migrate the data using Kirchhoff pre-stack time migration and check the degree of flatness of the common image gathers (CIG) after pre-stack time...

2012

Anisotropic Multi-Azimuthal Velocity Model Building and Depth Imaging on Tulip 3D Coil Shooting Survey

Michele Buia, Suyang Chen, Olga Zdraveva, Swee Leng Ng, Martin Bayly, Michelle Tham

Indonesian Petroleum Association

... technique for fast and efficient common image point (CIP) gather production for the model building loops (Nichols, 2006). These gathers were...

2011

Eye-Openers from Re-Processing of Oil Sands Seismic Data; #41290 (2014)

David Gray, Seann Day, and Scott Shapper

Search and Discovery.com

... the seismic gathers at these wide angles. Wide-angle noise such as multiples, converted-waves, refractions, and first-break reverberations must also...

2014

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)

... well image logs with various seismic anisotropy attributes obtained from azimuthal data. The workflow applied encompassed five main processes, where...

2023

N/A

Land seismic multi-parameter FWI imaging

Mason Phillips, James McLeman, Vlada Avramovic, Tom Rayment, Stuart Schmitt, Mike Varner, Yasser Khalifeh, Ahmad Ammar Chahine, Eskil Jersing

International Meeting for Applied Geoscience and Energy (IMAGE)

...) imaging uses minimally processed field data to simultaneously estimate a subsurface velocity model and a high-resolution reflectivity image using the full...

2024

Improving the image below complex overburden geology with FWI and Q-tomography: A case study at Etame license area, offshore Gabon

Richard Huang, Chong Chung, Benjamin Cole, Ivan Berranger, Ika Novianti, Paul Ware

International Meeting for Applied Geoscience and Energy (IMAGE)

... gather flatness. (a) and (c) are the Kirchhoff image and gathers, respectively, prior to RFWI. (b) and (d) are their counterpart after RFWI. general...

2022

High Resolution Seismic Data Derived From Prestack Inversion and Machine Learning to Accurately Position Horizontal Wells in the Midland Basin, Texas

Robert Meek, Buzz Davis, Hector Bello

Unconventional Resources Technology Conference (URTEC)

... on most of Pioneer’s 3D surveys. Ideally the migrated seismic gathers will be flat and conditioned. Careful QC analysis is important in processing...

2017

Interpolation Using Higher Dimensions: A Case Study ON KE2 Three-Dimensional Transition Zone Seismic Survey, Madura Field, Indonesia

Cecep Sutisna, Frans Langitan, Vishal Kumar, Keat Huat Teng, Pongga Wardaya

Indonesian Petroleum Association

..., INDONESIA Cecep Sutisna* Frans Langitan* Vishal Kumar** Keat Huat Teng** Pongga Wardaya** techniques can produce a better seismic image than vintage...

2015

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