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Showing 33,130 Results. Searched 200,357 documents.
Streamlining subsurface insights: Single extrapolation for holistic Green's function generation
Hongwei Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... of migration velocity models. Traditionally, prestack depth migration (PSDM) based on ray-tracing-based Kirchhoff integration is predominantly employed...
2024
Abstract: Pre-Stack Depth Migration from Regional 2-D Seismic Surveys, a Cost and Time Effective Way of Optimising Structural Detail, by Chris Benson and Dane Southward; #90081 (2008)
Search and Discovery.com
2008
2.2 Basement Involved: 2.2.3 Passive Margins: Guyana Offshore
W. J. Jankowsky and G. Schlapak
AAPG Special Volumes
... analysis of seismic velocities as the basis for subsequent depth conversion (depth migration) had to be used to allow a reliable interpretation...
1983
The Suitable Method in Generating True Depth Structure Maps to Eliminate Wonocolo Push-Down Effect on Seismic Data and Its Impact on Prospect Evaluation, North Madura Platform, East Java Basin
Haryono Haryanto, Rizki Krishna Pratama, Riaz Alai, M. Afiq B. Mokhtar, Pongga Wardaya, Yonghe Guo, Jun Wang
Indonesian Petroleum Association
... A Pretty Picture : Core Laboratories Company, CSEG Recorder. Fomel, S., 2003, Time-Migration Velocity Analysis by Velocity Continuation: Geophysics, p...
2018
GeoMind: An intelligent earth model building tool
Saleh Al Saleh, Ewenet Gashawbeza, Mustafa Marzooq, Hussam Banaja, Husain Al Shakhs, Jianwu Jiao
International Meeting for Applied Geoscience and Energy (IMAGE)
... velocity model building. Figure 3d shows an inline of the 3D image where a one-way prestack migration code used the velocity model in Figure 3b to produce...
2022
Abstract: Fracture Detection in the Migrated Domain: Practical Aspects of Prestack Time Migration of Azimuthally-limited 3D Land Data Volumes; #90171 (2013)
Mike Perz, Juefu Wang, and Ye Zheng
Search and Discovery.com
...; third, migration removes the influence of dip from the VVAZ analysis, thereby preventing the misidentification of structure-related azimuthal velocity...
2013
Improved 3D Seismic Imaging Expands North Sea Vision. Workstation Interpretive Depth Imaging Solves Gas Cloud Problem
Thad Dunbar, Mark Lance
Petroleum Exploration Society of Australia (PESA)
... int (CMP) coherency in version analysis measured lateral velocity changes between the sparse we ll control. The result wa s a gridded veloc ity map...
1999
Velocity Conditioning for an Improved Depth Conversion, #40743 (2011)
Ang Chin Tee, M. Hafizal Zahir, M. Faizal Rahim, Nor Azhar Ibrahim, Boshara M. Arshin
Search and Discovery.com
... is the seismic velocity. Figure 2. The seismic volume and the seismic velocity models of the study area were obtained after Pre-Stack Depth Migration processes...
2011
Seismic Migration: Part 7. Geophysical Methods
Ken Larner, David Hale
AAPG Special Volumes
...] (a) CMP stack of data from the Santa Barbara Channel, offshore California. (b) Result of migration. End_Page 374------------------------ VELOCITY...
1992
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)
... imaging efforts, lacks well calibration, and does not fit well the geological model The resulting seismic image suffers from the velocity issues...
2022
Imaging the presalt with elastic FWI using OBN data
Gabriel Brando, Benjamin Huard, Luis Cypriano
International Meeting for Applied Geoscience and Energy (IMAGE)
...: (a) 30 Hz RTM migration image, overlaid by the 12 Hz AFWI velocity model used to migrate the OBN data. (b) 30 Hz EFWI Image overlaid by its corresponding...
2023
Baram Field The 3D Marine Re-Processing Challenge
Jörg J. Wicker, Jonathan E. F. Stearn
Geological Society of Malaysia (GSM)
... of the line resembling the slow velocity phenomena caused by shallow gas in this area. CONCLUSIONS AND FUTURE PLANS 3D Migration (iI) Original 1989...
1999
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
..., the initial starting model was derived from a smooth version of a reflection traveltime tomography velocity field derived from a depth migration workflow...
2014
Changes in Acoustic Properties and Velocity Anisotropy in a Very Organic-Rich Marine Shale With Increasing Temperature
Search and Discovery.com
N/A
Refined Karst Feature and Fault Identification Through Integrated Wave Field Separation and Imaging of Diffraction Energy
Riaz Alai, Afiq Mokhtar, Christopher Lee Slind, Yonghe Guo, Rizki Krishna Pratama
Indonesian Petroleum Association
... positioned after migration with complex velocity, so post-migration separation handles the reflection better. But it is prone to noise leakage. Joint...
2021
An integrated workflow centered around elastic FWI for complex subsalt imaging using wide-azimuth data in the southern Gulf of Mexico
Hongyan Li, Riaz Alai, Nolan Brand, Frederico Xavier de Melo, Hugo Enrique Muñoz Cuenca, Wenmiao Liu, Iestyn Williams, Saeeda Hydal, Khaled Abdelaziz, Emmi Sanchez Vargas, Nik Nur Halim C Soh, M Shah B Sulaiman, Sandeep Kumar
International Meeting for Applied Geoscience and Energy (IMAGE)
... velocity models and seismic images. Utilizing dual salt velocity migration, three additional images (PPSP, PSPP, and PSSP) were generated to help define...
2024
Abstract: Near-surface Velocity Modeling through a Computationally Efficient Implementation of 1.5D Laplace-Fourier Full Waveform Inversion; #91204 (2023)
Apostolos Kontakis, Diego Rovetta, Daniele Colombo, Ernesto Sandoval-Curiel
Search and Discovery.com
... of the velocity model used. For a successful migration, the velocity model must track accurately enough the complexities of the near-surface. We developed a fast...
2023
Secondary Migration by Stokesian Flow of Metastable Clusters and Microdroplets of Petroleum in Water, #42016 (2017).
John G. Stainforth
Search and Discovery.com
... 1.E-03 1.E-02 1.E-01 1.E+00 Darcy velocity (m/y) TOTAL MIGRATION TIMES: STOKESIAN VS DARCY FLOW Stokesian droplet flow Darcy Stokes X-stratal...
2017
Impact of Pre-Stack Depth Migration on the Anama Prospect, Papuan Foreland Basin
K. Bradey
Papua New Guinea (PNG) Petroleum Convention Proceedings
... than the maximum offset of the streamer, and is considered too deep for any detailed velocity analysis to be effective in depth conversion. For both...
2000
Abstract: Progress and Challenges in the Processing and Use of Land Seismic Data Acquired via Compressive Sensing; #91204 (2023)
Gregory Culianez, Tahar Ben Youssef, Mohammad Farooqui, Ahmed Al Harthi
Search and Discovery.com
... and conventional datasets. We conclude with a comparison of Pre-Stack Depth Migration (PSDM) results based on Amplitude Versus Offset (AVO) analysis...
2023
The Barque Structure Offshore New Zealand: Improving the Seismic Image Using Prestack Depth Migration; #41516 (2015)
Jim Montalbetti, Jeff Beckett, Graham Hodgkiss
Search and Discovery.com
... and show the improvements in imaging gained from the prestack depth migration of the vintage seismic data. The Velocity-Depth Model Workflow The major...
2015
Abstract: Converted-Wave Prestack Time Migration with a New Approximate Migration Weight; #90224 (2015)
Chuck Ursenbach and Peter Cary
Search and Discovery.com
... region. In the case of migrated gathers, the improvement can be sufficient to make post-migration AVO analysis more feasible. Introduction Large volumes...
2015
Integrated Seismic Processing challenges in Karstified terrain of PNG Fold Belt
Search and Discovery.com
N/A
Integrating an exploration OBN into a full-scale prospect maturation workflow: Gulf of Mexico Lower Tertiary
Scott Yurman, Marcus Cahoj
International Meeting for Applied Geoscience and Energy (IMAGE)
..., high fidelity seismic velocities can be used to estimate rock, fluid, and pressure parameters. However, a seismic velocity that generates a good...
2022
Abstract: A Risk-Reduction Recipe Using Frequency-Based Pore Pressure Predictions from Seismic Data
Roger A. Young, Robert D. LoPiccolo
GCAGS Transactions
... Vol. 56 (2006) The more traditional approach to pore pressure prediction using seismic data is based on an analysis of stacking velocities...
2006