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The AAPG/Datapages Combined Publications Database
Showing 34,497 Results. Searched 200,685 documents.
Comments on the Geology of the Tejon Embayment from Seismic Reflection, Borehole, and Surface Data
Emery D. Goodman, Peter E. Malin
Pacific Section SEPM
... zone (-VPS 150-250) due to agriculture and other impairments. Therefore, the multiplicity of common depth point stacking is not as great...
1988
Seismic Acquisition and Processing for Sub-thrust Imaging and Prospecting, Suaza Valley, Colombia
G.W.Paukert, G. Billings, I.Dawes, T.D.J. England, G.Rait
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... of the basin generates a velocity ‘pull-up’ effect that significantly distorts the time structure of seismic horizons beneath basement overthrusts. Empirical...
2003
3-D High-Resolution Reservoir Characterization from Crosswell Seismic Data
John Washbourne, Kenneth Bube
West Texas Geological Society
.... Schematic of McElroy 1995 survey geometry. Constriction in wells 661 and 1202 prevented logging to depth. To illustrate the velocity ties...
1998
A Breakthrough of Bekapai Converted S-Wave Processing and its Positive Impact to Structural Interpretation
Effendy Siawira, Andy Kristianto, Jaques Bonnafe, Natalia Anggriani, Cepi M. Adam, Zainal Abidin, Firman B. Kurniawan, Supriady, Claudio Strobbia, Yang Liu, Youning Li, Xiagui Miao, Libo Zi, Guishui Wang
Indonesian Petroleum Association
... of S-waves with a lower velocity than Pwaves and being insensitive to fluid effect, promises a better image of the subsurface. Advanced seismic processing...
2015
Seismic Line Across the Wind River Thrust Fault, Wyoming
W.L. Basham, W.F. Martin
Rocky Mountain Association of Geologists
... been calculated using the observed dip in time for the seismic reflection and 18,300fdsec velocity of the basement. When the pull-up effect created...
1985
Premigration attenuation analysis and mapping to image domain by weighted migrations
Yonghe Sun, Chunling Wu, Mark Fan, Zhemin Tan
International Meeting for Applied Geoscience and Energy (IMAGE)
... 𝑡 ∗ from premigration data, computing a data-domain 1/𝑄 ≈ 𝜕𝑡 ∗ /𝜕𝑡, and mapping 𝑡 ∗ and 1/𝑄 to image domain by depth migrations. For low-dip...
2022
ABSTRACT: Pore pressure prediction from seismic data for well planning in Block 22 Final
M. Bacon, N. Mundel, J. Hearne, R. Lubbe and S. O’Connor
Geological Society of Trinidad & Tobago
... vertical stress, derived from well density data and water depth, Ph is hydrostatic pore pressure (normal gradient 0.44 psi/ft), Vnorm is the velocity...
2007
Fundamental 3-D Seismic Survey Design
Stuart Wright
Rocky Mountain Association of Geologists
... to be considered during the design process are seismic resolution, depth, structural dip, rock velocities, reservoir extent and reservoir complexity. Seismic...
1995
The development of seismic reflection sandbox modeling
Donald H. Sherlock, Brian J. Evans
AAPG Bulletin
...., 1976, Effect of brine-gas mixture on velocity in an unconsolidated sand reservoir: Geophysics, v. 41, p. 882-894. Gartrell, A. P., 1997, Evolution...
2001
Data Enhancement from a 486-Channel Streamer
Bill Dragoset, Ken Larner
Pacific Section of AAPG
... frequency components. The amount of attenuation depends on the velocity distribution, array length and offset, and reflector dip and depth. Figure 5...
1980
Improving Depth Prediction Accuracy of Quantified Drilling Hazards
W. Scott Leaney, William H. Borland
Geological Society of Malaysia (GSM)
.... Drillers want predictions in depth, however, and the output of VSP inversion is acoustic impedance in two-way time. Thus, a velocity profile must...
1996
Velocity continuation with Fourier neural operators for accelerated uncertainty quantification
Ali Siahkoohi, Mathias Louboutin, Felix J. Herrmann
International Meeting for Applied Geoscience and Energy (IMAGE)
... We introduce a deep-network surrogate for velocity continuation in order to enable faster quantification of uncertainty—due to errors...
2022
The Relationship Between Sphere Size And Settling Velocity
Ronald J. Gibbs, Martin D. Matthews, David A. Link
Journal of Sedimentary Research (SEPM)
... of these spheres were accurately known. All timing precisions were better than % and the combined precision (size, shape, density, timing, etc.) of the velocity...
1971
Structural inversion, imbricate wedging, and out-of-sequence thrusting in the southern Junggar fold-and-thrust belt, northern Tian Shan, China
Shuwei Guan, Joseph M. Stockmeyer, John H. Shaw, Andreas Plesch, and Jian Zhang
AAPG Bulletin
.... These prestack depth-migrated data were converted to depth using a velocity model constrained by sonic logs, checkshot surveys, and stacking velocities...
2016
Integration of Outcrop and Modern Analogs in Reservoir Modeling: Overview with Examples from the Bahamas
G. Michael Grammer, Paul M. Mitch Harris, Gregor P. Eberli
AAPG Special Volumes
... there is a general trend of increasing velocity with depth, velocity inversions with depth are common, and values of compressional wave velocities can range...
2004
Extending the Resolution of Seismic Reflection Exploration
L. R. Denham
Pacific Section of AAPG
... roll by velocity filtering is used. Realistic values for frequency, depth and dip of reflections will usually give a minimum number of groups around 100...
1980
Structure Beneath Continental Shelf, Northeastern Gulf of Mexico
John W. Antoine , James L. Harding
AAPG Bulletin
... of higher-velocity carbonates at shallow depth, combined with a corresponding thinning of the semi-consolidated layer, would result in the phenomena...
1965
First Implementation of Hybrid Fiber Optic Cable in Indonesia - Carbon Reduction through Leading-Edge Technology
Marsha Sakina, Dinda Larasati Rahmani, Fajar Tri Prasetia, Cikko Majesta, Francesco Miranda
Indonesian Petroleum Association
...-based micro imager—the dipping velocity model (Figure 15). The updated velocity model corrects the normal moveout effect for 2D VSP common depth...
2023
Abstract: Advantages and Disadvantages of Array Depth Placement and Longer Toolstring Apertures; #90187 (2014)
N. Verkhovtseva and J. Shaffner
Search and Discovery.com
... locations errors. It must also be noted that longer toolstring apertures are only helpful in increasing the depth accuracy if a signal is visible on all...
2014
Chapter 10: Earthquake, Tomographic, Seismic Reflection, and Gravity Evidence for a Shallowly Dipping Subduction Zone beneath the Caribbean Margin of Northwestern Colombia
Rocio Bernal-Olaya, Paul Mann, Carlos A. Vargas
AAPG Special Volumes
... deformed belt). At a down-dip distance of 450 km (280 mi) from the frontal thrust of the accretionary wedge and at a depth of 130 km (81 mi), tomographic...
2015
Structural Restoration of Seismic and Geologic Sections in Extensional Regimes (1)
ALAN G. NUNNS
AAPG Bulletin
.... For example, in Figure 4 the difference in dip between unbalanced and balanced faults increases with depth. Accordingly, the restored horizons...
1991
2.2 Basement Involved: 2.2.2 Rifts: A Half-Graben and Tilted Fault Block Structure in the Northern North Sea
A. C. Evans and D. N. Parkinson
AAPG Special Volumes
... and by applying the Dix equation to stacking velocities at further depth. The Pre-Cretaceous There is a prominent deep reflection from within the Magnus...
1983
Exploration of the North Seribu Area, Northwest Java Sea
Roberto Fainstein
Indonesian Petroleum Association
... and optimum stacking velocities for dip and strike lines, made it possible to obtain seismic sections with considerably improved basement definition...
1987
Critical Aspects of 3-D Seismic Surveys for Field Development in Central Sumatra
Kent M. Mangold, Erlina, Eddy B. Hamzah
Indonesian Petroleum Association
..., respectively. Figure 20. Interval velocity versus depth Figure 21. Design aperture and group interval versus geologic dip. While computing the aperture...
1992
A new double-difference earthquake relocation algorithm for models with complex velocity structure
Xinding Fang, Siwei Li, Zhixiang Zhang, Tianrun Chen, Yingcai Zheng
International Meeting for Applied Geoscience and Energy (IMAGE)
.... Michelini, A., and A. Lomax, 2004, The effect of velocity structure errors on double-difference earthquake location: Geophysical Research Letters, 31, L09602...
2024