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The AAPG/Datapages Combined Publications Database

Showing 29,449 Results. Searched 200,691 documents.

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Passive seismic HVSR surveying for groundwater exploration at the Chilalo Graphite Project, Tanzania

Sharna Riley, Jayson Meyers, John Sinnott

Petroleum Exploration Society of Australia (PESA)

.... The gridded bedrock depth highlighted two paleochannel features of variable depth within the river valley. One bore was drilled along the margin...

2019

Calibration of the University of Southern California Automatically Recording Settling Tube

David O. Cook

Journal of Sedimentary Research (SEPM)

.... S., AND LIN, P. N., 1952, Sediment concentration and fall velocity: Proc. Second Confer. Fluid Mechanics, Ohio State University, p. 401-411. POOLE, D...

1969

Paleohydrology and Paleomorphology of a Carboniferous, Meandering, Fluvial Sandstone

Thomas W. Gardner

Journal of Sedimentary Research (SEPM)

... for suspension". Average flow velocity, V, estimated from this method is similar to flow velocity estimated from initiation of sediment motion curves...

1983

Marine Multicomponent Seismic – The New Issues in the Developing Revolution

Jason Robinson

Indonesian Petroleum Association

... axis is two-way PS1 time, the horizontal axis is the ratio of Vps1/Vps2 average velocity, and variable density amplitudes represent positive cross...

2002

Applying Rock Physic Models for Optimized Pore Pressure Prediction

Joel K. Loeffler, Sam Green, Jakob Heller, Lev Vernik

GCAGS Transactions

... physics models (RPMs) such as the clay-dependent pore pressure prediction model presented in Vernik (2011) and in Vernik (2016) can take variable clay...

2020

Diagenetic and Sedimentologic Explanation for High Seismic Velocity and Low Porosity in Mesozoic-Tertiary Sediments, Svalbard Region: GEOLOGIC NOTES

Anders Elverhoi , Gisle Gronlie

AAPG Bulletin

...Diagenetic and Sedimentologic Explanation for High Seismic Velocity and Low Porosity in Mesozoic-Tertiary Sediments, Svalbard Region: GEOLOGIC NOTES...

1981

Laboratory Study of the Distribution of Grain Sizes in Cross Bedded Deposits

Alan V. Jopling

Special Publications of SEPM

... line for any given particle was derived by plotting of the particle the longitudinal velocity of stream flow in the transition region and the settling...

1960

Experimental Investigations of Combined Flow Sediment Transport

Everett Smith, Max S. Daniller-Varghese, Paul M. Myrow, David Mohrig

Journal of Sedimentary Research (SEPM)

... and Mineralogists, Special Publication 27, p. 327–342. Dott, R.H., Jr., and Bourgeois, J., 1982, Hummocky stratification: significance of its variable...

2019

A high-resolution seismic investigation for shallow iron ore

Ashley Grant*, Sasha Ziramov, Milovan Urosevic

Petroleum Exploration Society of Australia (PESA)

... to the south-west. The grade is variable throughout the survey area and its seismic signature appears to identify some of these changes. Velocity models...

2019

Abstract: Statics or Statistics?„The Near-Surface Revisited; #90211 (2015)

David Henley

Search and Discovery.com

... for compensating seismic data for the effects of the highly variable near-surface weathered layer, usually classified as “statics” methods...

2015

Orphan Basin, Canada: From Regional Prospect Screening to Reliable Reservoir Attributes Estimation

Scott Opdyke, Cyrille Reiser, Tiago Alcantara, Elena Polyaeva, PGS

GEO ExPro Magazine

... and high fidelity pre-stack seismic attributes data in Newfoundland and Labrador Figure 3: FWI velocity model and LSM depth slice showing the structural...

2020

Seismic amplitude variation with angle response of hydrogen-saturated rock: Implications on subsurface monitoring

Chao Li, Shuvajit Bhattacharya

International Meeting for Applied Geoscience and Energy (IMAGE)

... injection into the subsurface, the subsurface elastic properties (e.g., velocity and density) will change, leading to different seismic responses, which...

2024

Determining the Impact of Mineralogy Composition for Multiphase Flow Through Hydraulically Induced Fractures

Javier E. Santos, Maša Prodanović, Christopher J. Landry, Honggeun Jo

Unconventional Resources Technology Conference (URTEC)

... these processes, is the variable wettability of the minerals in presence of reservoir fluids (Tokunaga & Wan, 2013); it has been shown that a system (i.e....

2018

Seismic Reflection Measurements of Northwest Australian Margin and Adjacent Deeps

J. J. Veevers , D. A. Falvey , L. V. Hawkins , W. J. Ludwig

AAPG Bulletin

...-refraction measurements of a seaward decrease in interval velocity of laterally equivalent sedimentary rocks above the unconformity. Beck, R. H., 1972...

1974

3-D Surface-Wave Estimation and Separation Using an Iterative Closed-Loop Approach; #41898 (2016)

Tomohide Ishiyama, Gerrit Blacquiere

Search and Discovery.com

... signals. The method provides a better result than a conventional slowness/velocity-based filtering method which cannot handle both surface waves...

2016

The Composition, Structure and Erodability of Subtidal Mats, Abaco, Bahamas

A. Conrad Neumann, Conrad D. Gebelein , Terence P. Scoffin

Journal of Sedimentary Research (SEPM)

... and mucilage to produce stromatolitic structures whose morphology was controlled by current velocity and rates of sediment FOOTNOTE 2. Contribution...

1970

Shale Elastic Property Relationships as a Function of TOC Content Using Synthetic Samples

Y. Altowairqi, R. Rezaee, B. Evans, M. Urosevic

Unconventional Resources Technology Conference (URTEC)

... velocity and the velocities of P- and S-waves are inversely proportional to TOC content. In addition, the increase in the TOC content reduced density...

2016

Multichannel Profiles Collected in 1982 in the Tonga Region of the South Pacific

Dennis M. Mann

Circum Pacific Council Publications

... controllers or variable-wing birds attached to the bird sections. Digital 1 Any use of trade names is for descriptive purposes only and does not imply...

1985

ABSTRACT 4D Seismic Monitoring of CO2: Practical Considerations, #90103 (2010)

David Lumley

Search and Discovery.com

... monitoring (eg., Sleipner). In depleted HC reservoirs, the situation is more complex since oil has widely variable physical properties, and CO2...

2010

Abstract: 3D–3С Full-Wave Modeling in Anisotropic 2.5D Medium; #90171 (2013)

A. Kostyukevych, N. Marmalevskyi, Y. Roganov, and V. Tulchinsky

Search and Discovery.com

... in the model boundaries. They showed that with the fixed frequency k X 2 ≠ 0 , the propagating waves have velocity dispersion, which should...

2013

Abstract: Depth Migration of Monostatic and Bistatic Georadar Data; #90187 (2014)

Robert J. Ferguson, Matthew J. Yedlin, Christian Pichot, Jean-Yves Dauvignac, Nicholas Fortino, and Stephane Gaffet

Search and Discovery.com

... deconvolution procedure restores much of the the amplitude and phase effects of Q attenuation). We use depth-variable velocity analysis and we determine...

2014

Potential Issues with Extreme Limited Entry in Horizontal Wells

Robert D. Barree

Unconventional Resources Technology Conference (URTEC)

... rate through each upstream perforation cluster. Successive loss of feed rate at each fluid exit point can lead to a loss of transport velocity inside...

2020

Lithology Prediction by Extrapolating Well Data

Brian Barley, Dean Chergotis, Mai Wilson, Susan Young

Indonesian Petroleum Association

.... Figure 5. Velocity/overpressure crossplot Whenever a crossplot between velocity or density and a new variable shows a quantifiable trend, we have...

1992

Composite (VS/VP) Ratios in Transversely Isotropic Geology: Possible Aid for Identifying Organic Contamination in Porous Rocks

Alvin K. Benson

Environmental Geosciences (DEG)

... 188 198 Vol. 3 (1996) No. 4. Important mechanical properties of rocks and soils can be calculated from the shear-wave velocity, VS, the compressional...

1996

Fast Track Reservoir Characterisation of a Subtle Paleocene Deep Marine Turbidite Field Using a Rock Physics and Seismic Modelling Led Workflow

H.J.S. Morris, R. Christensen, D. Gawith, M. Millwood-Hargrave

Indonesian Petroleum Association

... techniques could be used to predict the unknown. The two main scenarios that were modelled were; what happens with variable fluid content; and what happens...

2008

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