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The AAPG/Datapages Combined Publications Database
Showing 1,097 Results. Searched 200,357 documents.
EXTENDED ABSTRACT: Advances and Challenges in Seismic Data Processing and Imaging for Geologically Complex Areas
Rubén D. Martínez
GCAGS Transactions
...-processing steps, depth velocity model building and depth migration algorithms could not possibly deliver useful seismic depth images for structural...
2011
Re-imaging of 2D legacy data in Brazils Equatorial Margin via pseudo-3D model building
David Butler, Daryineth Fernandez, Oscar Perez, Raul Ysaccis, Jason Thekkekara, Juan Perdomo, Christopher McMorland, Aurora Rodriguez Castelan
International Meeting for Applied Geoscience and Energy (IMAGE)
...rs adaptively to the data and accounts for out-ofplane energy, cable feathering, cable depth and water velocity variations. This produces a more accura...
2024
Multiscale insights into the Mount Weld REE deposit from 2D and 3D active seismic survey data
Thomas Bell, Greg Turner, Ganesh Bhat, Brad Knell
International Meeting for Applied Geoscience and Energy (IMAGE)
.... between the 3200m/s velocity contour and the depth of weathering independently observed in drill cuttings (shown by the transition from cyan to blue...
2023
Phase-Ray Maslov Summation: A Complete Finite-Frequency Ray Method
Tianfei Zhu
Search and Discovery.com
.... It is, for example, a key element of the Kirchhoff migration algorithm which has been a major tool over the past decade for prestack depth imaging...
Unknown
Phase-Ray Maslov Summation: A Complete Finite-Frequency Ray Method
Tianfei Zhu
Search and Discovery.com
.... It is, for example, a key element of the Kirchhoff migration algorithm which has been a major tool over the past decade for prestack depth imaging...
Unknown
Towards Quantitative Assessment of 4D DAS Time Shifts for Enhanced Stimulated Rock Volume Characterization
Yesser Haj Nasser
Unconventional Resources Technology Conference (URTEC)
... and the starting depth of every stimulation stage. After Haj Nasser (2022). The monitor P-wave velocity after stimulating stage 38, shown with the blue curve...
2022
Regional exploration of crustal structures from long-offset OBN data by extended-source FWI
Gaoshan Guo, Stéphane Operto
International Meeting for Applied Geoscience and Energy (IMAGE)
..., the predominant approach for determining large-scale crustal structures still relies on traveltime tomography (see Christeson et al. (2014) for a Gulf...
2024
Abstract: Integrated Analysis and Inversion of 3D Refraction Travel Times; #90171 (2013)
Igor B. Morozov and Atul Jhajhria
Search and Discovery.com
... parameterization, an initial subsurface model is automatically derived from the travel times and is further refined by iterative, non-linear travel-time...
2013
Generation and evolution of overpressure caused by hydrocarbon generation in the Jurassic source rocks of the central Junggar Basin, northwestern China
Xiaowen Guo, Sheng He, Keyu Liu, Zhi Yang, Shengqiang Yuan, and Mingliang Liu
AAPG Bulletin
.... The well-log responses of the overpressured mudstones and seismic velocity characteristics indicate that the top depth of the overpressure zone...
2019
Abstract: Seismic Detection of Cracks in Carbonates Associated with Potash Mining; #90171 (2013)
Zimin Zhang and Robert R. Stewart
Search and Discovery.com
... delay in PS reflection traveltime. 950 950 950 950 DawsonBay 1000 DawsonBay 1000 1000 1050 1050 1000 SecondRedBed PrairieEvaporite Depth (m...
2013
Use of Seismic Surveying for Study of the Subsurface Structure of Southeast Turkmenistan
D. M. Mil’shteyn
Petroleum Geology: A Digest of Russian Literature
...) velocity of propagation of elastic vibrations increases gradually with depth, reflecting a corresponding increase in formation velocities...
1960
Enhancing Seismic Interpretation Using Crosswell Seismic: Case Study From Indonesia
Tri Handayani, Zeppy Irwanzah, M. Taslim, Sanjeev Dogra, Ajay Nalonnil, Bruce Marion, Pedro Carrillo Reyes
Indonesian Petroleum Association
...-precision velocity model for reflection imaging. The final reflection image product generated is in depth units. During the reflection imaging step, data...
2011
The use of FWI in coal exploration
Mehdi Asgharzadeh, Maryam Bahri, Milovan Urosevic
Petroleum Exploration Society of Australia (PESA)
... seismic images are of a high quality; issues with depth conversion, fault throw estimate, coal quality, presence of fractured and gassy zones, weak strata...
2018
Simultaneous Joint Inversion of Electromagnetic, Gravity and Seismic Data for Thrust Belt and Sub-Basalt Imaging
Virgilio Massimo, Stephen Hallinan, Marco Mantovani
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... was applied in the framework of the depth imaging velocity model building workflow. Figure 3 shows the single domain MMT inversion; good for a regional...
2009
Seismic Stratigraphy of the Bahamas
John W. Ladd , Robert E. Sheridan
AAPG Bulletin
... to the Great Isaac well, we find the depth of reflection R to be 1,560 ± 100 m (1.34-sec two-way traveltime) and the depth of reflection P to be 1,930...
1987
Robust phase-driven time warping FWI for salt reconstruction
Guanghui Huang, Alejandro Alcudia-León, Jaime Ramos-Martínez, Nizar Chemingu
International Meeting for Applied Geoscience and Energy (IMAGE)
... FWI for salt reconstruction Figure 1: Field data example from the Gulf of Mexico. Initial velocity model for a) crossline section and c) depth slice...
2024
Lithoprobe Basin-Scale Seismic Profiling in Central Alberta: Influence of Basement on the Sedimentary Cover
D.W. Eaton, B. Milkereit, G.M. Ross, E.R. Kanasewich, W. Geis, D.J. Edwards, L. Kelsch, J. Varsek
CSPG Bulletin
... to the increase in velocity with depth. Superimposed on the seismic traces are velocity logs and synthetic seismograms from three control wells (see Fig. 1...
1995
Abstracts: Challenges and Solutions in Locating and Interpreting Microseismic Events from Surveys in the Horn River Basin; #90173 (2015)
Ulrich Zimmer
Search and Discovery.com
... away but has an apparent smaller depth uncertainty caused by the use of direct waves and headwaves for the localization. Assuming that the velocity...
2015
Origin of overpressure and pore-pressure prediction in the Baram province, Brunei
Mark R. P. Tingay, Richard R. Hillis, Richard E. Swarbrick, Chris K. Morley, Abdul Razak Damit
AAPG Bulletin
...-vertical effective stress plots. Acoustic traveltime is inversely related to porosity. Hence, sonic velocity-vertical effective stress data can also...
2009
Abstracts: Seismic Anisotropy of the Marcellus Shale: Feasibility Study for Fracture Characterization; #90173 (2015)
James Gaiser, Alvaro Chaveste, Mary Edrich, Tony Rebec, and Richard Verm
Search and Discovery.com
... characterization of two principal crack densities, an infill fluid factor and isotropic background velocity is possible by inversion of NMO ellipses and zero...
2015
Abstract: Local Stretch Zeroing NMO Correction; #90174 (2014)
N. Kazemi and H. R. Siahkoohi
Search and Discovery.com
..., Series approximation in Velocity and traveltime computations: Geophys. Prosp., 21, 783-795. Brouwer, J. H., 2002, Improved nmo correction...
2014
Geometric mode decomposition method for diffraction separation
Peng Lin, Suping Peng, Yang Xiang, Chuangjian Li, Xiaoqin Cui
International Meeting for Applied Geoscience and Energy (IMAGE)
... can effectively represent reflections with directional and linear geometric features by adaptively decomposing seismic data as a combination...
2022
Understanding The Mesozoics Beyond Basalt: A Case Study Of Sub-Basalt Imaging
S. Sengupta, S. K. Goswami, G. Menzel-Jones, B. Chowdhury, Artem Sazykin
Indonesian Petroleum Association
..., the diving-wave penetration was limited up to a maximum depth of 1.8 km. To update the deeper sections, a velocity scanning approach, and multiple passes...
2020
River Seismic Operations in the West Siberian Lowland
A. K. Shmelev
Petroleum Geology: A Digest of Russian Literature
... reflected waves. Correlation is made without a correction for the depth of the shot hole or the low velocity zone because their absolute value is generally...
1960
Gated based quantum computer algorithm for geophysical inversion
Jorge E. Monsegny, Daniel Trad, Don C. Lawton
International Meeting for Applied Geoscience and Energy (IMAGE)
... calculations, only forward modelling, and residuals calculation. We illustrate the algorithm with a small instance of a traveltime tomography problem...
2023