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The AAPG/Datapages Combined Publications Database
Showing 947 Results. Searched 195,502 documents.
Sequential vertical gas charge into multilayered sequences controlled by central conduits
M. Foschi, J. A. Cartwright, and C. W. MacMinn
AAPG Bulletin
... (0–1 s two-way traveltime [TWT], i.e., the main interval of interest) to 22 m (72 ft) at depth (1–4 s TWT). Horizontal resolution is approximately...
2018
Structure and Development of Porcupine Seabight Sedimentary Basin, Offshore Southwest Ireland
D. G. Masson, P. R. Miles
AAPG Bulletin
...------------ The Porcupine Seabight is a conspicuous embayment in the continental margin southwest of Ireland (Figure 1). Water depth within...
1986
A Multidisciplinary Approach to Reservoir Subdivision of the Maastrichtian Chalk in the Dan Field, Danish North Sea
Lars Kristensen , Thomas Dons , Kim Gunn Maver , Poul Schioler
AAPG Bulletin
...-to-time conversions done for tying the biostratigraphy to the seismic data. The seismic traveltime within the chalk was estimated from interval velocity...
1995
DAS microseismic reflection imaging for hydraulic fracture and fault zone mapping
Yuanyuan Ma, Jonathan Ajo-Franklin, Avinash Nayak, Xiaoyu Zhu, Julia Correa
International Meeting for Applied Geoscience and Energy (IMAGE)
... S-wave velocity model (Figure 1c) to compute a traveltime table, then migrate the microseismic traces and output an S-wave image volume on a 10 × 10 × 10...
2023
Structural geometry and evolution of the Ku, Zaap, and Maloob structures, Campeche Bay, Mexico
Shankar Mitra, Juan A. Duran Gonzalez, Jesus Garcia Hernandez, Sergio Hernandez Garcia, Subhotosh Banerjee
AAPG Bulletin
... that provide the best correlation between seismic horizons and well markers were used to convert the seismic sections to depth. Constant velocity functions were...
2006
Geophysical Investigation of the Breccias Impact on Reservoir Quality in the Madison Formation, The Beartooth Region, Montana, U.S.A.
Wisam H. AlKawai
Search and Discovery.com
.... •Traveltime inversion was applied to determine the P-wave velocity in the Madison Formation which is 2650 m/s. •This velocity is lower than the typical P...
2011
ABSTRACT: Marine Crustal Reflection Profiling Offshore Santa Maria Basin Westward to Base of Continental Slope, by Anne S. Meltzer and Alan R. Levander; #91035 (2010)
Search and Discovery.com
2010
Broad Top Thrust Sheet: An Extensive Blind Thrust in the Central Appalachians (1)
Thomas H. Wilson and Robert C. Shumaker
AAPG Bulletin
... reflections. Based on the two-way interval traveltime of 0.75 s and average velocity through the unit of 22,300 ft/s (6800 m/s) derived from a velocity...
1992
Elastic FWI imaging of a complex presalt structure using NATS data
Arthur Henrique, Luiz Felão, Sergio Barragan, Florian Jouno
International Meeting for Applied Geoscience and Energy (IMAGE)
..., characteristic of this type of acquisition, pose challenges to velocity model building and imaging. The target lies below the diving wave penetration...
2023
Gas hydrates characterization in the southern Hikurangi margin using full waveform inversion
Search and Discovery.com
N/A
Inversion of Magnetotelluric (MT) Data with Enhanced Structural Fidelity, #42333 (2018).
Federico Golfre Andreasi, Simone Re, Federico Ceci, Luca Masnaghetti
Search and Discovery.com
.... Unfortunately, these techniques lack the resolution required to infer the geologic setting at depth and to build a structural model with adequate...
2018
Chapter 14 (Case Histories of Three-Dimensional Seismic Surveys)—Case History 4: 3-D Seismic Interpretation of an Upper Permian Gas Field in Northwest Germany
H. E. C. Swanenberg, F. X. Fuehrer
AAPG Special Volumes
... definition and resolution of the target horizon at 3500 to 4000 m depth (corresponding to 2.2 to 2.4 sec two-way traveltime) is severely influenced...
2011
Estimation of detachment depths and displacements from the area–depth markers of contractional growth structures: Testing the “inverse line” concept
Sam Rivas-Dorado
AAPG Bulletin
... or redrafted from its original source. Interpretations have been validated via regular ADS analysis. If a good linear fit and detachment depth were...
2023
Seismic Characterization of Large-scale Sandstone Intrusions
Mads Huuse, Joe Cartwright, Andrew Hurst, Noralf Steinsland
AAPG Special Volumes
... and empirical relations exist that relate the velocity or density of sandstones and mudstones to their porosity and/or depth of burial...
2007
Abstract: A Comparison of Standard Migration with EOM for Hussar Data; #90174 (2014)
Thais A. Guirigay, John C. Bancroft, and J. Helen Isaac
Search and Discovery.com
... plot and therefore improve the resolution of velocity analysis over conventional common midpoint gathers. Introduction Migration is one of the most...
2014
Anisotropic elastic full-waveform inversion for crosswell seismic data for Wyoming CarbonSAFE project
Olga Podgornova, Shujaat Ali, Ting Lei, Peng Li, Matthew Johnson, Lu Lee, Zunsheng Jiao, J. Fred McLaughlin, Erik Borchardt, Lin Liang, Pierre Bettinelli, Joel Le Calvez
International Meeting for Applied Geoscience and Energy (IMAGE)
... for the horizontal shear velocity from the crossline component and vertical shear velocity from the inline component. In some depth intervals, sonic gamma...
2023
Use of the Regulated Directional Reception Method in Exploration for Reefs in Bashkiria
Yu. N. Voskresenskiy, Ya. I. Shul’ts
Petroleum Geology: A Digest of Russian Literature
... are drilled below the low velocity zone (average depth of 50 m); this prevents generation of surface waves which have an effect on the summation...
1961
GPR surveys reveal the subsurface geology of major sea turtle nesting islands in the Saudi waters of the Arabian Gulf
Sherif Hanafy, Korhan Ayranci, Rommel H. Maneja, Ace Vincent B. Flandez, Jinoy Gopalan, Diego F. Lozano Cortes
International Meeting for Applied Geoscience and Energy (IMAGE)
... time scale to the required depth scale, we need to know the GPRwave propagation velocity value. Here, we buried a small metallic body at a known depth...
2023
The Fabric, or Internal Structure, of Rocks The Patterns of Anisotropy; #42188 (2018)
Heloise B. Lynn
Search and Discovery.com
..., but has left in the azimuthal traveltime wobble (see red arrow). (b) Initial ORT common image gather. The ORT velocity field has specified the VTI and HTI...
2018
Salt tectonics in the western Gulf of Cadiz, southwest Iberia
Hugo Matias, Pedro Kress, Pedro Terrinha, Webster Mohriak, Paulo T. L. Menezes, Luis Matias, Fernando Santos, Frode Sandnes
AAPG Bulletin
... isopach map of unit 1 was depth converted using a constant velocity of 4500 m/s, as shown in panels A and C of Figure 8. The synoptic map in Figure 8C...
2011
Monitoring Sea-floor Instability Caused by the Presence of Gas Hydrate Using Ocean Acoustical and Geophysical Techniques in the Northern Gulf of Mexico
Erika Geresi, Ross Chapman, Tom McGee, Bob Woolsey
AAPG Special Volumes
.... The compressional (P)-wave velocity is expected to increase with depth to the estimated base of the gas-hydrate stability zone (BGHS) (approximately...
2009
1.5 Crustal Sections: A Wide Angle Seismic Profile
V. J. Hughes, R. S. White, E. J. W. Jones, D. H. Matthews, J. A. Brewer, and D. K. Smythe
AAPG Special Volumes
... seismic velocity versus depth profile can be determined beneath the fixed midpoint. The high density of receivers compared to conventional refraction...
1983
Mechanics of low-relief detachment folding in the Bajiaochang field, Sichuan Basin, China
Andreas Plesch, John H. Shaw, David Kronman
AAPG Bulletin
... of approximately 300 km2 (115 mi2). Data were acquired down to 5 s two-way traveltime (TWT), corresponding to approximately 10 km (6 mi) depth...
2007
Use of Seismic Surveying for Exploration of Oil and Gas Fields in the Fergana Valley
B. S. Vol’vovskiy, I. S. Vol’vovsky, B. B. Tal’-Virskiy
Petroleum Geology: A Digest of Russian Literature
... greatly depending on their velocity, degree of attenuation, and depth of occurrence of the corresponding refracting horizons. In the Pri-Adyr and Adyr...
1960
Origins of overpressure in the central Xihu depression of the East China Sea shelf basin
Jun Li, Jingzhou Zhao, Zhiqiang Hou, Shuping Zhang, and Mengna Chen
AAPG Bulletin
... with the normal compaction trend or conforms to a higher level of normal compaction as the depth increases. In the sonic velocity–effective stress diagram...
2021