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The AAPG/Datapages Combined Publications Database
Showing 29,406 Results. Searched 200,293 documents.
Mid-Tertiary Conglomerate Deposition and Structural Implications, Southwestern Wind River Range, Wyoming: ABSTRACT
Richard J. Bottjer, James R. Steidtmann, Larry T. Middleton
AAPG Bulletin
... with their long axes between transverse and longitudinal positions, indicating later reworking of orientations developed during initial high velocity flows. Thus...
1983
Abstract: Seismic Characterization of Debris Slopes Around Isolated Carbonate Platforms;
William Mynatt, Eugene Rankey, Michael Poppelreiter, Adelya Makhankova, Grisel Paola Soto
Search and Discovery.com
... of reliefs and thicknesses in slope deposits, paired with complex geometric relationships with basinal strata, results in variable seismic character...
Unknown
A Novel Method of Deriving Weathering Statics from First Arrival Refractions
G. W. Hollingshead, R. R. Slater
Pacific Section of AAPG
..., the variable density mode of display was chosen as the most effective means of presenting the early signals on the production reflection records used...
1980
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)
... to the client´s office). Once the velocity field/structural behavior was considered to be adequately known, the following jobs were done...
2006
High-fidelity full-waveform imaging via impedance inversion
Feng Chen, Yu Zhang, Lian Duan, Weishan Han, Yilong Qin, Qianggong Song
International Meeting for Applied Geoscience and Energy (IMAGE)
... present a full waveform imaging method based on trueamplitude migration that inverts both velocity and impedance models. Within the context of full...
2023
Joint Anisotropic Parameter Inversion Based on Nonhyperbolic Moveout and Azimuthal Amplitude Variance
Fangyu Li, Jie Qi, Bin Lyu, Kurt J. Marfurt
Unconventional Resources Technology Conference (URTEC)
... analysis focuses on azimuthal changes on either velocity or amplitude. It is obvious that in the field application both HTI and VTI exist...
2016
Geoscience Applications to Economic Development of a Relatively Shallow, Low Gravity, Structurally Complex Eagle Ford Oil Development, Atascosa County, Texas
Lee Billingsley, Bill Layton, Luke Finger
GCAGS Transactions
.... Velocity values based on the drilling and geosteering of nine, widely spaced horizontal wells indicates that velocity is faster near the downthrown...
2016
Selected Studies in High-Angle Hole Cleaning
Mario Zamora, Paul Hanson
Indonesian Petroleum Association
... beds, (5) velocity profile, (6) velocity, (7) flow regime, (8) rheology, (9) sweeps, (10) pipe rotation, and (11) mud weight. Unique photographs...
1990
Characterization of a Carbonate Mudrock Reservoir by Integrating Sequence Stratigraphy, Sonic Velocity, and Characterization of the Macro- to Micropore Architecture; #41990 (2017)
Beth Vanden Berg, G. Michael Grammer
Search and Discovery.com
...Characterization of a Carbonate Mudrock Reservoir by Integrating Sequence Stratigraphy, Sonic Velocity, and Characterization of the Macro...
2017
Interpreting the Concept of the Sedimentation Unit
Alan V. Jopling
Journal of Sedimentary Research (SEPM)
... the aggradation is directed. A velocity change accompanies such an adjustment, but it is the effect rather than the cause, a dependent variable, rather...
1964
Elastic full-waveform inversion using random space shift
Yuhui Yao, Jizhong Yang, Yuzhu Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... than AFWI due to the slow S-wave velocity which requires a more accurate initial model than Pwave velocity, together with the existence of tradeoff...
2022
Transportation of Detritus by Moving Water
Filip Hjulstrom
Special Publications of SEPM
...; in turbulent flow it moves in pulsations in a variable way. The velocity of water in laminar flow is always low; in turbulent flow it may be low or high...
1955
Conditional image prior for uncertainty quantification in full-waveform inversion
Lingyun Yang, Omar M. Saad, Tariq Alkhalifah, Guochen Wu
International Meeting for Applied Geoscience and Energy (IMAGE)
... (FWI) is a technique employed to attain a high resolution subsurface velocity model by minimizing the mismatch between the simulated and observed...
2024
Image - Rays and the Treatment of Inhomogeneity in Migration
L. Hatton
Southeast Asia Petroleum Exploration Society (SEAPEX)
... depth conversion. Mildly Variable Velocity: Conformal Dipping Layers. This case is illustrated in Figure 7c. Any time-migration algorithm can be used...
1980
Abstract: Reservoir Characteristics of a Quaternary Channel: Incorporating Rock Physics in Seismic and DC Resistivity Surveys; #90211 (2015)
Jawwad Ahmad and Douglas Schmitt
Search and Discovery.com
... properties into geological interpretation. High porosity and poorly consolidated channel sand shows variable seismic velocity that mainly depends...
2015
Physical Basis of Reflection Seismology
Bruce S. Hart
Special Publications of SEPM
... for the sound to travel fro A to B and back again (the two-way travelti e, TWT), we can deter ine the distance AB by ultiplying the velocity of sound...
2000
Time-lapse full-waveform inversion by model order reduction using radial basis function
Haipeng Li, Robert G. Clapp
International Meeting for Applied Geoscience and Energy (IMAGE)
.... The RBF approach allows for representing time-lapse changes on a nonuniform grid, offering variable resolution. This method is validated through three...
2024
Modeling Tidal Bedding In Distributary-Mouth Bars
Nicoletta Leonardi, Tao Sun, Sergio Fagherazzi
Journal of Sedimentary Research (SEPM)
... for small ratios of mud to sand settling velocity and mud to sand concentration. Bottom friction strongly affects tidal bedding by reducing the length...
2014
Hydromechanical Principles of Sediment Structure Formation
L.I. Briggs, G. V. Middleton
Special Publications of SEPM
... and direction of the velocity at any point can thus be repre sented by drawing a velocity vector whose direc tion is a tangent to the streamline...
1960
Flow Behavior of Ponded Turbidity Currents
Marco Patacci, Peter D.W. Haughton, William D. Mccaffrey
Journal of Sedimentary Research (SEPM)
... in slope mini-basins and on small, structurally confined basin floors in strike-slip and foreland-basin settings. They can have a variable internal...
2015
Some Principles and Techniques Used in Reconstructing the Hydraulic Parameters of a Paleo-Flow Regime
Alan V. Jopling
Journal of Sedimentary Research (SEPM)
..., or over a lobate front of a small delta. The merging of current filaments in a variable velocity field affords another example; strong vorticity...
1966
Seismic Exploration of the Val Verde Basin
Lorenz Shock
West Texas Geological Society
... where the surface material is of a rigid high-velocity nature. Such a surface tends to generate and sustain undesirable vibrations from the initiating...
1959
Effects of Biogenic Silica on Acoustic and Physical Properties of Clay-Rich Marine Sediments (1)
JANE S. TRIBBLE , FRED T. MACKENZIE , JOZSEF URMOS , DAVID K. O'BRIEN , and MURLI H. MANGHNANI
AAPG Bulletin
... in highly variable and, at times, inverse velocity-depth gradients. The diagenetic conversion of opal-A to opal-CT and finally to quartz...
1992