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The AAPG/Datapages Combined Publications Database
Showing 33,168 Results. Searched 200,685 documents.
ABSTRACT: Enhanced Structural Imaging Using TTI Reverse Time Migration - A Case Study over the Dhok Sultan Block, by Firasat Shah, Syed; Sajjad, Musharraf; Zubay, Erick
Search and Discovery.com
N/A
Abstract: Recent Advances and Future Challenges in Geopressure Prediction; #90211 (2015)
Alan Huffman
Search and Discovery.com
... simplistic estimates of the Earth’s velocity field. The advent of the effective stress concept and the pressure prediction methods that developed...
2015
Abstract: Extracting, Understanding & Utilizing Azimuthal Anisotropy Through Depth Imaging; #90316 (2017)
Pavel Vasilyev, Cara Smith, Anna Glushchenko, Paul Marsden, Edgardo Vargas
Search and Discovery.com
... an accurate subsurface velocity model and to perform depth imaging before proceeding with any azimuthal analysis and further estimation of azimuthal anisotropy...
2017
Seismic Azimuthal Anisotropy Analysis Applied to Natural Fracture Intensity and Azimuth Prediction: Barnett Shale Example
Search and Discovery.com
N/A
Seismic Imaging Improvements in the Bolivian Fold-and-Thrust Belt Through Psdm
A. Rocha, J. Subia
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... 8000 m (below) migration aperture (crest to the left end of the line) Postack migration test Due to the lateral velocity variation, the minimum...
2006
Limitations of Reflection Seismograph
L. E. Nugent, Jr.
AAPG Bulletin
... in depth. COMPUTATION Fundamentally, computation is based on analysis of the propagation and velocity in elastic media of longitudinal waves...
1953
Improving Marcellus Imaging Through the Use of FWI and Joint Tomographic Inversion for Velocity and Epsilon
David McCann
Unconventional Resources Technology Conference (URTEC)
... resources were powerful enough to effectively perform the analysis on 3D datasets. Whereas previous algorithms have been migration based, FWI is model...
2018
Abstract: Several Case Studies of Onshore 2-D Depth Migrations Completed on a Workstation, by B. L. Weinman; #90960 (1995).
Search and Discovery.com
1995
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)
... migration with the MP-FWI imaging velocity model. This demonstrates that the MP-FWI imaging velocity model provides a clear kinematic improvement over...
2024
A Comparison of Depth Conversion Methods in Buntal Gas Field, Block B, Natuna Sea, Indonesia
Irfan Yuliandri Syukri, John Hughes, Medi Medianesterian
Indonesian Petroleum Association
... analysis shows residual RMS depth errors for each method are similar. For Beta-0, using Dix corrected stacking velocity gives the smallest error (11...
2014
Current Trends in Geophysics
H. E. Stommel, J. M. Graul
Indonesian Petroleum Association
... with the wrong velocity. The lower part of figure 19 demonstrates the potential benefits of migration before stack. In this procedure, common offset...
1978
Image - Rays and the Treatment of Inhomogeneity in Migration
L. Hatton
Southeast Asia Petroleum Exploration Society (SEAPEX)
... the velocities in the first place. Furthermore, since migration and velocity analysis become one and the same problem in the presence of serious lateral...
1980
Abstract: Salt-Flank Delineation Using Refraction Seismic Imaging of Borehole Seismic Data; #91204 (2023)
Ali Aldawood
Search and Discovery.com
... a smooth background velocity model based on surface seismic data analysis. We concluded that walkaway borehole seismic acquisition helps illuminate...
2023
PSDM Enhances Reef Interpretation in Jatiluhur Block, West Java
Jopie I. Adhidjaja, Andrew J. Davidoff, Ika Ratna Novianti
Indonesian Petroleum Association
... optimal imaging. Standard velocity analysis is too crude for the purpose and the assumption of hyperbolic moveout does not always apply. Recently, we have...
2002
Case History: Big Bend Gulf of Mexico Exploration Success Through Integrated G&G Technology
Search and Discovery.com
N/A
Seismic Angle Migration
Search and Discovery.com
N/A
Abstract: Application of Pre-Stack Migration Techniques in SSB/SSPC to Improve Seismic Imaging and Reduce Exploration Uncertainties
Jan Douma
Geological Society of Malaysia (GSM)
... migration is the most commonly applied migration technique. For geological settings with mild velocity variations this technique gives satisfactory results...
1999
PSDM for Unconventional Reservoirs? A Niobrara Shale Case Study
Morgan P. Brown, Joseph H. Higginbotham, Dave List, Chris Lang
Unconventional Resources Technology Conference (URTEC)
... is believed to be caused by a thickening alluvial wedge. Figure 2: Starting velocity model (left), derived from time migration velocity analysis, versus final...
2013
PSDM for unconventional reservoirs? A Niobrara Shale case study; #80405 (2014)
Morgan P. Brown, Joseph H. Higginbotham, Cosmin Macesanu, Oscar E. Ramirez, Dave List, Chris Lang
Search and Discovery.com
... the magnitude of AVAZ response observed in the data. PSDM Velocity Analysis Rigorous, iterative velocity update proves key to the success of depth migration. We...
2014
Abstract: A Comparison of 3D Azimuth-Angle Domain Common Image Gathers using Poynting Vector and Optical Flow Methods; #90254 (2016)
Young Seo Kim, Constantine Tsingas
Search and Discovery.com
... migration velocity analysis (MVA) and image-domain full waveform inversion by directly providing the depth move-out residuals to be employed for velocity...
2016
Subsalt Imaging: Beyond Depth Migration and Model Building
Search and Discovery.com
N/A
Imaging challenges at Gulf of Papua (PNG) and their solutions through high-end imaging technology
Zongying Gong, Subhash Chandra, Xiaodong Wu, Yajing Li, Min Zhi, Michael Szczepaniak, Barry Hung
Petroleum Exploration Society of Australia (PESA)
... of information were then combined and fed into the non-linear tomography, which gave us a more reliable velocity model (Figure 4b). Migration...
2019
Water column corrections: Joint water velocity inversion for 4D marine surveys
Didier Lecerf, Mathieu Lange, Andrew Oates, Jyoti Kumar
International Meeting for Applied Geoscience and Energy (IMAGE)
... consistent water velocity (Kumar et al., 2015). The objective of these processes is to correct the pre-migration data and to be able to migrate the complete...
2022
Improving subsalt images using reflection FWI on WAZ data: Examples from the Gulf of Mexico
Maksym Kryvohuz, Yihua Cai, Sebastian Ramirez, Robert Schelstrate, Gislain Madiba
International Meeting for Applied Geoscience and Energy (IMAGE)
..., by running LeastSquare Reverse-Time Migration (LSRTM) after each velocity update to obtain a “true-amplitude” reflectivity 𝑟(𝑐0 ). Yet, the latter...
2022
Large-Scale Pore Pressure Prediction After Pre-Stack Depth Migration in the Caspian Sea (Geophysics Paper 24)
Norbert van de Coevering, Hazim Hameed Al-Dabagh, Liau Min Hoe, Tony Jolly
Geological Society of Malaysia (GSM)
... correction. The velocity model coming out of the last iteration from the PSDM is used as input to this RMO analysis. The high-density simultaneous velocity...
2008