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The AAPG/Datapages Combined Publications Database

Showing 28,873 Results. Searched 196,956 documents.

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Recording and Processing Procedures for Multi-channel Seismic-Reflection Data Collected in the Western Ross Sea, Antarctica

S. V. Dadisman, H. F. Ryan, D. M. Mann

Circum Pacific Council Publications

...: RECORDING STATICS: DATUM: SHOT STATICS: 276 ms Sea level Variable 4. CDP SORT: SPACING: 50 m 5. VELOCITY ANALYSIS: DIP FILTER: WINDOW LENGTH: BAND...

1987

Orientation Of Crinoids By Current Action

W. Schwarzacher

Journal of Sedimentary Research (SEPM)

.... The mean current velocity at this moment was calculated from the discharge and water depth. The position of the test body is given by the angle...

1963

Pore Pressure Prediction Geology and Modeling Assessment

Selim S. Shaker

GCAGS Transactions

... effective stress values below the top of geopressure for calculations. PPP before drilling using seismic velocity and offset wells is a crucial endeavor...

2024

Sedimentary Structures Generated by Flow in Alluvial Channels

D. B. Simons, E. V. Rlchardson, C. F. Nordin JR.

Special Publications of SEPM

... the temperaturc or fluid viscosity of predicting bed forms from known characteristics of the flow and depth as well as velocity and slope Methods...

1960

Dynamics of Sediment Movement

Gerard Middleton, John B. Southard

Special Publications of SEPM

... hydraulic variable. discussions, forces acting on grains were related to a velocity at the bed rather than to the shear stress. Why not use a velocity? One...

1984

Seismic Stratigraphic Analysis of Intracratonic Basin Sandstone Reservoir

William E. Galloway, Shirley P. Dutton

Tulsa Geological Society

... by inserting appropriate velocity slabs of variable thickness at the stratigrahic position of the Lower Wade and Medrano intervals. Results showed...

1979

Simple model, complex strata: 2-D numerical forward model analysis of heterogeneity and controls in submarine fan systems

Alfie W. Mackie, Christopher J. Stevenson, Peter M. Burgess

Journal of Sedimentary Research (SEPM)

... flow time step, the flow will move from a cell (x) to the next downslope cell (x + 1) with a velocity (Fig. 1). The velocity is a function...

2024

Building a three-dimensional near-surface geologic and petrophysical model based on borehole data: A case study from Chemery, Paris Basin, France

Paola Sala, Marcel Frehner, Nicola Tisato, O. Adrian Pfiffner

AAPG Bulletin

... Paola Sala, Marcel Frehner, Nicola Tisato, O. Adrian Pfiffner 2013 1303 1324 97 8 The fact that velocity models based on seismic reflection surveys...

2013

Some Applications and Problems of the Seismic Refraction Technique in Civil Engineering Projects in Malaysia

B. K. Lim, S. J. Jones

Geological Society of Malaysia (GSM)

... of the geophone—source distance, the velocity and dip of each overlying layer. The velocity of a given layer is a function of its dynamic elastic...

1982

Marchenko focusing using convolutional neural networks

Mert S. R. Kiraz, Roel Snieder

International Meeting for Applied Geoscience and Energy (IMAGE)

... Green’s function at an arbitrary depth location in a complicated medium with variable velocity, and variable density profiles. Using CNNs, we relax...

2022

High-resolution imaging in the Campos Basin using legacy seismic acquisition

David Brookes, Darrell Armentrout, Milos Cvetkovic, Terry Johnson, Trish Sullivan

International Meeting for Applied Geoscience and Energy (IMAGE)

... at variable depths, and usually small scale, are important to image well, as they are directly affecting seal integrity. Figure 1. DM FWI velocity model...

2023

Stress Directions in Cretaceous Frontier Formation, Green River Basin, Wyoming

S. E. Laubach, S. J. Clift, R. E. Hill, J. Fix

Wyoming Geological Association

...-induced fractures, circumferential acoustic velocity analysis (CVA), anelastic strain recovery (ASR), differential strain curve analysis (DSCA), axial...

1992

Formation of Ripple Bands in a Wave-Convergence Zone: DISCUSSION

T. G. Carter

Journal of Sedimentary Research (SEPM)

... velocity characteristic of a typical progressive wave (akin to that given by the conduction solution of Longuet-Higgins 1953), flow patterns would alter...

1989

ABSTRACT: Influence of the Finer Material Portion in Physical Simulation of Density Currents; #90013 (2003)

RICHARD EDUARD DUCKER, MARCELO DEVENUTTE AVILA, ROGERIO DORNELLES MAESTRI, ANA LUIZA DE OLIVEIRA BORGES

Search and Discovery.com

.... The simulations were conduced in a bidimensional variable slope channel (300 x 12.5 x 20cm). The currents were composed by a mixture of water, salt...

2003

Tengiz field fault shadows mitigation with combined joint FWI-tomography, Q-tomography, and least-square migration

Tianjiang Li, King Sim Lee, Bin Gong, Kai Yang, Kai Zhang, Assem Bibolova, Zhanibek Katrenov

International Meeting for Applied Geoscience and Energy (IMAGE)

... Based Tomography resulted in a high-resolution subsurface velocity model. The successfully completed pilot demonstrated uplifts to the image quality...

2022

Q-compensated least-squares reverse time migration by considering velocity and Q perturbations

Jinli Li, Yingming Qu, Chongpeng Huang, Zhenchun Li

International Meeting for Applied Geoscience and Energy (IMAGE)

...Q-compensated least-squares reverse time migration by considering velocity and Q perturbations Jinli Li, Yingming Qu, Chongpeng Huang, Zhenchun Li Q...

2022

Near-Surface Characterization for Seismic Exploration Based on Gravity and Resistivity Data; #41892 (2016)

Jan Mrlina

Search and Discovery.com

... the seismic resolution on the whole. If the static corrections and subsurface velocity model are not accurate, not only fine deep details, but the complete...

2016

A Case History of Geoseismic Modeling of Basal Morrow-Springer Sandstones, Watonga-Chickasha Trend: Geary, Oklahoma--T13N, R10W: Section 3. Stratigraphic Models from Seismic Data

William A. Clement

AAPG Special Volumes

... composed of alternating high velocity sandstone lenses of variable thickness, low velocity siltstones, and very low velocity shales. The basal Springer...

1977

Reservoir Analog for Deep-Water Carbonates Prospects in Southeast Asia

Irena Andisa Maura, Gregor P. Eberli, Daniel Bernoulli

Indonesian Petroleum Association

... measured under variable confining pressure. Here the acoustic velocity measured at 2 MPa pore pressure and 30 MPa confining pressure, in order...

2015

Observations from Exploration Drilling in an Active Mud Volcano in the Southern Basin of Trinidad, West Indies

Maria Henry, Michael Pentilla, Darrell Hoyer

AAPG Special Volumes

... measured decreased resistivity, lower density, and higher interval transit time (slower velocity) in mud volcano layers relative to intervals...

2010

Bed Configurations

J. C. Harms, J. B. Southard, R. G. Walker

Special Publications of SEPM

... exerts on the boundary. 2-8 The most common velocity variable is mean velocity U averaged over the cross section of the flow. The boundary shear...

1982

Depositional Architecture and Petrophysical Variability of an Oolitic Tidal Sand Shoal: Pennsylvanian (Missourian), Kansas, U.S.A.

Eugene C. Rankey, Hamilton Goodner, John Doveton

Journal of Sedimentary Research (SEPM)

... collectively provide information on lithology (e.g., carbonate, shale) and changes in velocity or density related to variable lithology and porosity...

2018

The challenge of an optimal drawdown in high-performance wells in Vaca Muerta, Argentina

Mariana A. Mamani, Sebastián E. Nuñez, Loreta Schenkel

Unconventional Resources Technology Conference (URTEC)

..., drawdown velocity (DDV), which was proposed for monitoring the drawdown management. Below is a brief description of this variable: • DDV [kg/cm2/day...

2023

Structure and Stratigraphy of the Blake Escarpment Based on Seismic Reflection Profiles: Rifted Margins

R. E. Sheridan , C. C. Windisch , J. I. Ewing , P. L. Stoffa

AAPG Special Volumes

... gather, 24-channel velocity analysis, normal move-out correction, 24-fold stacking, trace equalization, deconvolution, and time variable gain. Velocity...

1979

Estimates of Sand Transport on the New York Shelf Using Near-bottom Current Meter Observations

P. E. Gadd, J. W. Lavelle, D. J. P. Swift

Journal of Sedimentary Research (SEPM)

... depths along the New Jersey coast during the same measurement period. The Spring 1974 current velocity field yields transport rates of lesser magnitudes...

1978

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