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The AAPG/Datapages Combined Publications Database

Showing 29,455 Results. Searched 200,630 documents.

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Migration-Progradation Tidal Succession within the Upper Nyalau Formation (Oligocene-Late Miocene) at Tanjong Kidurong, Bintulu, Sarawak (Poster 2)

Abdul Hadi Abd. Rahman

Geological Society of Malaysia (GSM)

... suggested that fine sand megaripples are caused by higher velocity flow compared to megaripples in coarser sand. Terwindt (1981) argued that features like mud...

2001

Estimating Porosity from Determinsitic Inversion (Paper C6)

M. Sams, T. J. Focht, J. Ting

Geological Society of Malaysia (GSM)

... a variable aspect ratio dependent on the porosity and clay content. The results show a very-high degree of predictability of the elastic properties...

2012

Clay Mineral X-Ray Diffraction Analysis: Ag Filter-Pipette Methods: METHOD PAPER

James P. M. Syvitski, Peter Bayliss

Journal of Sedimentary Research (SEPM)

... settling velocity, was carried out in a centrifuge. Powder mounts were prepared with approximately 200 mg of standard or combination of standards...

1980

A Preliminary Investigation of the Rhone River Plume in Eastern Lake Geneva

J. Dominik, D. Burrus, J.-P. Vernet

Journal of Sedimentary Research (SEPM)

... in lakes and estuaries. The transfer of suspended matter from a river into a reservoir with associated decrease of current velocity results...

1983

2.3 Detached Sediments in Extensional Provinces: 2.3.2 Salt Tectonics: Structure and Stratigraphy of the Sigsbee Salt Dome Area, Deep South-Central Gulf of Mexico

R. T. Buffler

AAPG Special Volumes

...) Velocity scan 4) Normal moveout/stack 5) Scale (variable) End_Page 2.3.2_57------------------- Unnumbered Figure. Interpreted regional seismic line...

1983

Inorganic Calcite Morphology: Roles of Fluid Chemistry and Fluid Flow: REPLY

J. A. D. Dickson

Journal of Sedimentary Research (SEPM)

... toward the edge (Fig. 1B). The greatest growth vector is not an apparent measure but represents the actual largest linear crystallization velocity...

1993

An Easily Constructed, Very Inexpensive, Solar Cell Transmissometer (SCT): RESEARCH METHODS PAPERS

Stephen C. Knowles, John T. Wells

Journal of Sedimentary Research (SEPM)

.... KNOWLES, S.C., AND WELLS, J.T., 1996a, In situ size and fall-velocity of coastal/estuarine suspended sediment: EOS, Transactions, American Geophysical...

1998

Porosity Reduction in Sandstone by Quartz Overgrowth: DISCUSSION

J. H. Fang, P. B. Visscher, A. M. J. Davis

AAPG Bulletin

... concentration in solution by a dimensionless variable C (we will use dimensionless variables wherever possible to avoid confusion about units) defined...

1988

Abstract: SAGD Well Planning Using Stochastic Seismic Inversion; #90172 (2014)

Franck Delbecq, Rémi Moyen

Search and Discovery.com

... by the seismic bin size and vertical columns of cells with variable thickness, typically much smaller than the seismic resolution. The inversion is directly...

2014

Abstract: On the Road to 3D Seismic Imaging of Massive Sulphide Deposits in a Sediment-Hosted Permafrost Environment; #90174 (2014)

Laura Quigley, Yijian Meng, Bernd Milkereit, and Emmanuel Bongajum

Search and Discovery.com

... statistical analysis of several logged boreholes. Shear wave velocities (Vs) were calculated using Poisson’s ratio. Vp/Vs ratios are highly variable...

2014

Abstracts: Application of Shear-wave Splitting Analysis to Fracture Characterization for a Shaunavon Tight Oil Reservoir; #90173 (2015)

N. Chaminda Sandanayake and Richard A. Bale

Search and Discovery.com

... recombination of the split waves into new radial and transverse datasets, corresponding to an equivalent isotropic layer with S1 velocity...

2015

Abstract: Machine Learning Predicted S-Sonic Log and Facies Driven Modelling: A Seismic Reservoir Characterization Approach; #91204 (2023)

Shraddha Chatterjee, Santan Kumar, Felipe Melo, Veronica Perez, ChungShen Lee

Search and Discovery.com

...-stack seismic inversion demands S-sonic (or S-velocity) logs or their derivatives as input. These are often not acquired or, if acquired, may...

2023

Microseismic, 3D, and Log Image Data for Unconventional Targeted Drilling and Treatment; #41135 (2013)

Mark Houston

Search and Discovery.com

... Are NOT the Same Production Is Variable, Why?? Events 9 9 8 8 6 7 7 6 5 5 4 4 3 3 2 2 1 1 30 25 20 15 10 5 0 Rates measured by PLT...

2013

Gas Well/Water Well Subsurface Contamination: Tools of Investigation; #80292 (2013)

Rick Railsback

Search and Discovery.com

... to  image • Analogous to sonograms • Free pipe returns a much  greater amplitude signal  than cemented pipe • Amplitude display • VDL (variable density...

2013

Gas Well / Water Well Subsurface Contamination; #80339 (2013)

Rick Railsback

Search and Discovery.com

... pipe • Amplitude display • VDL (variable density log)  display Principles of the Cement Bond Log Cement Bond Log Presentation Noise Logs (Sound...

2013

Visualizing AVAZ Parameter Estimates and Uncertainty, #41571 (2015).

Jon Downton, Dave Gray, Torre Zuk

Search and Discovery.com

... by integrating over the range of all possibilities for that variable. Downton and Gray (2006) describe the details of these calculations. The resulting PDF...

2015

Geological Interpretation of Reservoir Seismic Amplitude Responses: Example from North Western Australia; #42591 (2024)

Mohammed Farfour, Hezam Yahya Al-Awah

Search and Discovery.com

..., S., Gaci, S., Barbosa, S., Farfour, M., & Bounif, M. (2022). Investigation of lithological heterogeneities from velocity logs using EMD-Hölder...

2024

Diagenesis of Oceanic Carbonate Sediments: A Review of the Dsdp Perspective

Robert E. Garrison

Special Publications of SEPM

... velocity Sonic Atlanic A o o r 0 Rise 2 I r I Leone I I I I 70 Sier a t 6 1 I 366 50 I 1 Por sity eastern Site A at cycles 10cm...

1981

Machine Learning Regressors and their Metrics to predict Synthetic Sonic and Brittle Zones

Ishank Gupta, Deepak Devegowda, Vikram Jayaram, Chandra Rai, Carl Sondergeld

Unconventional Resources Technology Conference (URTEC)

...) and a single response (dependent variable y). The equations for MLR are given below where ε is the error and ̂ is an estimate of the dependent variable (...

2019

Spatial Variation in Turbidite-To-Contourite Continuums of the Kiwada and Otadai Formations in the Boso Peninsula, Japan: An Unstable Bottom-Current System in a Plio-Pleistocene Forearc Basin

Makoto Ito

Journal of Sedimentary Research (SEPM)

... Course 5, p. 119-139. COOPER, C., FORRISTALL, G.Z., AND JOYCE, T.M., 1990, Velocity and hydrographic structure of two Gulf of Mexico warm-water rings...

1997

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