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The AAPG/Datapages Combined Publications Database

Showing 29,406 Results. Searched 200,293 documents.

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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

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