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The AAPG/Datapages Combined Publications Database
Showing 21,647 Results. Searched 200,293 documents.
Structure of Argentine Continental Margin
William J. Ludwig , John I. Ewing , Maurice Ewing
AAPG Bulletin
... flank of the Magellan basin between Santa Cruz and Estrecho de Lemaire. Layer identifications are based on comparison of seismic velocities...
1968
Flow velocity model for a coastal estuarine sandbar using multivariate regression
Edlic Sathiamurthy, Nurul Syamimi Pauzi
Geological Society of Malaysia (GSM)
... closed estuary condition for a temporary open/close estuary system (TOCE) corresponding to relation between river, groundwater and tidal levels were...
2020
VSP Lookahead of the Bit Information: Considerations and Accuracy Analysis, #42196 (2018).
P. Ranjan, M. Khaitan, S. Chandrasekhar, Basant Kumar
Search and Discovery.com
... inverted velocities had an average error of 4-8% and 5-9% in the interval 200 ms and 300ms respectively below TD. VSP Lookahead results below 300 ms...
2018
Properties of Turbidity Currents of High Density
Ph. H. Kuenen
Special Publications of SEPM
..., but velocities are smaller owing to greater loss of sediment over the measured run. Figure 3 shows the relation between slope (square root of sine...
1951
Brazos River Bar: A Study in the Significance of Grain Size Parameters
Robert L. Folk, William C. Ward
Journal of Sedimentary Research (SEPM)
... somewhat more fluctuation). Obviously this simulates figure 1 closely; the average gravel content of the top 20 inches of the bar is between 40 and 45...
1957
Chapter Eleven: Regional and Reconnaissance Use of 3-D Data
Alistair R. Brown
AAPG Special Volumes
... of the deposition can only be understood by studying regional displays. Figure 11-10. RMS amplitude map over 100-ms window in lower Paleocene from...
2011
Hydrodynamics of Bivalve Shell Entrainment and Transport
Amalia M. Olivera , William L. Wood
Journal of Sedimentary Research (SEPM)
...------------------------ Tivela), which generally have 0.3 N < FD < FL. Cucullaea shows a reversed relation between drag and lift (FD > FL; Fig. 11...
1997
Transverse Ribs: Their Characteristics, Origin and Paleohydraulic Significance
Emlyn H. Koster
Dallas Geological Society
..., “average spacing between ribs . . . average widths of ribs . . . and average b-axis of the ten largest stones in ribs.” On Spring Creek, the ten...
1977
Transverse Ribs: Their Characteristics, Origin and Paleohydraulic Significance
Emlyn H. Koster
CSPG Special Publications
..., “average spacing between ribs . . . average widths of ribs . . . and average b-axis of the ten largest stones in ribs.” On Spring Creek, the ten...
1977
Grain-Size Analyses of Mica Within Sediments and the Hydraulic Equivalence of Mica and Quartz
Paul D. Komar, Jumpei Baba, Bingquan Cui
Journal of Sedimentary Research (SEPM)
... -M66. BABA, J., AND KOMAR, P. D., 1981, Measurements and analysis of settling velocities of natural quartz sand grains: Jour. Sed. Petrology, v. 51, p...
1984
Seismic Imaging of the Overturned Limb of a Footwall Syncline in the Alberta Foothills of the Canadian Rocky Mountains and Its Impact on Exploration; #30533 (2017)
Andrew C. Newson
Search and Discovery.com
... velocity field derived from the interpretation of pre-stack time migration, conversion of RMS velocities field within the interval velocity fields...
2017
Chapter 14 (Case Histories of Three-Dimensional Seismic Surveys)—Case History 2: Three-Dimensional Seismic Monitoring of an Enhanced Oil Recovery Process
Robert J. Greaves, Terrance J. Fulp
AAPG Special Volumes
... to be several times greater than the vertical permeability. Numerous fractures were observed, and an average orientation of N27E was measured. Although...
2011
Intraplate crustal deformation in Sabah: Preliminary results of Global Positioning System/Global Navigation Satellite System measurements in the Ranau area
Bailon Golutin, Felix Tongkul, Ismail Abd Rahim
Geological Society of Malaysia (GSM)
... of these faults will become clearer after a few more years of monitoring. Keywords: GPS/GNSS velocities, intraplate crustal deformation, active faults...
2022
Jurassic Seismic Stratigraphy and Basement Structure of Western Atlantic Magnetic Quiet Zone
Kim D. Klitgord, John A. Grow
AAPG Bulletin
..., 1979, Multichannel seismic depth sections and interval velocities over outer continental shelf and upper continental slope between Cape Hatteras...
1980
Improving Depth Prediction Accuracy of Quantified Drilling Hazards
W. Scott Leaney, William H. Borland
Geological Society of Malaysia (GSM)
... is the empirical relation between reservoir fluid pressure gradient (or equivalent mud weight) and observed minus expected or normal slowness. Ideally...
1996
Experimental Deposition of Carbonate Mud From Moving Suspensions: Importance of Flocculation and Implications For Modern and Ancient Carbonate Mud Deposition
Juergen Schieber, John B. Southard, Patrick Kissling, Britt Rossman, Robert Ginsburg
Journal of Sedimentary Research (SEPM)
...). In these experiments floccules form floccule ripples that accrete into mud beds at flow velocities between 0.1 to 0.3 m/s. Fine-grained carbonates...
2013
Dynamics of Stream Flow and Environmental Control
Krishna K. Misra
Tulsa Geological Society
... area to another, but for several parts of the United States it lies between 0.6 and 0.7. This relationship means that, on the average, a drainage basin...
1972
Longitudinal Ripple Marks in Mud and Sand
L. M. J. U. Van Straaten
Journal of Sedimentary Research (SEPM)
... on August 20, 1948, and those on August 8, 1949. The tides on both dates were about equally strong; the average wind velocities were a little lower...
1951
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)
... and 5000 psi (20 MPa to 34 MPa). Thereafter further increases in velocities occurred with increasing stress levels. A comparison between the ultrasonic...
2016
AVO Inversion in Marine Gas Hydrate Studies; #41603 (2015)
Marc-André Chen, Stan Dosso, George Spence, Michael Riedel, Roy Hyndman
Search and Discovery.com
... between the lower and upper media, and Vp, Vs, or ρ with no subscript indicates the average value of both media. This choice of parameterization...
2015
The Geometry and Seismic Character of Mid-Late Miocene Carbonate Sequences, SS Area, Offshore Northwest Java
David Carter, Marihot Hutabarat
Indonesian Petroleum Association
..., a computer program extracts a vertical time window of a seismic trace and calculates an RMS average of a specified seismic attribute from all...
1994
Washed-Out Ripples: Their Equilibrium Dimensions, Migration Rate, and Relation to Suspended-Sediment Concentration in Very Fine Sand
Jaco H. Baas , Herman De Koning
Journal of Sedimentary Research (SEPM)
... are stable between 10°C-equivalent depth-averaged flow velocities of 0.75 m/s and 0.91 m/s. With increasing velocity in this range the 10°C-equivalent average...
1995
Stress-Dependent Permeability and Dynamic Elastic Moduli of Reservoir and Seal Shale
Daisuke Katsuki, Anton Padin Deben, Olawale Adekunle, Andrew J. Rixon, Azra N. Tutuncu
Unconventional Resources Technology Conference (URTEC)
... between the permeability, net stress and P and S wave velocities. Net stress is defined as the difference between confining stress and pore pressure...
2016
Ground-Water in the Milford Area, Utah
R. W. Mower, R. M. Cordova
Utah Geological Association
... in figure 3. An average velocity of 0.2 foot per day or about 75 feet per year may be typical of ground-water velocities in the Milford area, but large...
1973
Rock Mechanical Behavior at the Inch Scale in a Thinly Laminated Unconventional Formation
Smaine Zeroug, Bikash K. Sinha, Ting Lei, John Jeffers
Unconventional Resources Technology Conference (URTEC)
... formation, the acoustic anisotropy reflects the inequality between measured vertical and horizontal wave velocities for both compressional and shear...
2016