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The AAPG/Datapages Combined Publications Database
Showing 763 Results. Searched 200,693 documents.
PUNCTUATED GROWTH OF MICROBIAL CONES WITHIN EARLY CAMBRIAN ONCOIDS, BAYAN GOL FORMATION, WESTERN MONGOLIA
DYLAN T. WILMETH, FRANK A. CORSETTI, NEMANJA BISENIC, STEPHEN Q. DORNBOS, TATSUO OJI, SERSMAA GONCHIGDORJ
PALAIOS
... cones were classically interpreted as evidence for phototaxis (Walter et al. 1976), more recent studies have shown that diffusive gradients of nutrients...
2015
Assessment of Micro-Fracture Density using Combined Interpretation of NMR Relaxometry and Electromagnetic Logs
Lu Chi, Marcus, Elliot, Zoya Heidari, Mark Everett
Unconventional Resources Technology Conference (URTEC)
... developed software, Seatem. This program solves the diffusive Maxwell equations, and describes spatial heterogeneity through representation of anomalous...
2014
Modern Sediment Dynamics at the Shelf-Slope Boundary off Nova Scotia
Philip R. Hill, Anthony J. Bowen
Special Publications of SEPM
... that there is a distinct downslope component to the av erage drift at the shelfbreak Diffusive and density processes may also contribute significantly to the downslope...
1983
Neogene Deep-Water Dolomite From the Florida-Bahamas Platform
Henry T. Mullins, George R. Dlx, Anne F. Gardulski, Lynton S. Land
Special Publications of SEPM
... The apparent older for dolomite relative to the sediment 1986 either advective groundwater flow or loss of strontium diffusive strontium...
1988
Stratigraphic Condensation and the Redeposition of Economic Phosphorite: Allostratigraphy of Oligo-Miocene Shelfal Sediments, Baja California Sur, Mexico
Kurt A. Grimm
Special Publications of SEPM
... Formation. Since the diffusive flux of the Miocene Monterey Formation. Since the diffusive flux of Mg++ (and other cations) decreases exponentially...
2000
Using Hybrid Models for Unconventional Production Opportunities and Value Generation - Case Studies
Hardikkumar Zalavadia, Trevor Stoddard, Utkarsh Sinha, Andrew Corman, Sathish Sankaran
Unconventional Resources Technology Conference (URTEC)
... multiphase well production performance. The procedure combines the concept of diffusive-time-of-flight (DTOF) with material balance theory...
2022
New Rapid Solutions for Production Analysis From Multi Transverse Fracture Wells
Ismail S. Mohamed, Venkata Bala Krishnateja Chavali, Michael J. King
Unconventional Resources Technology Conference (URTEC)
... time, the pressure contours follow the solution of the Eikonal equation for the diffusive time of flight (DTOF), , subject to the boundary condition...
2023
Case Study on Real-Time Pump Health Check for Optimizing ESP Performance and Extending Lifespan in Unconventional Wells
Matthew Wortmann, Haiwen Zhu, Hardikkumar Zalavadia, Chris James, Chad Harbaugh
Unconventional Resources Technology Conference (URTEC)
...). The methodology is built on a novel formulation that integrates diffusive time-offlight calculations, sequential pseudo-steady-state (SPSS) material balance...
2025
Diagenesis of Carbonates in Deep-Sea Sediments--Evidence From SR/CA Ratios and Interstitial Dissolved SR2+ Data
Paul A. Baker, Joris M. Gieskes, Harry Elderfield
Journal of Sedimentary Research (SEPM)
... their model required up to 400 bulk recrystallizations of the calcite. These authors, however, did not account for diffusive transport of Sr2+ out...
1982
Halite Pseudomorphs After Gypsum: A Suggested Mechanism
B. Charlotte Schreiber ,, David Walker
Journal of Sedimentary Research (SEPM)
..., indicating that resistance to motion and the diffusive dissipation of its driving force are insufficient to damp out the advective motion. For Ra in the range...
1992
210Pb Chronology Of Sequences Affected By Burrow Excavation And Infilling: Examples From Shallow Marine Carbonate Sediment Sequences, Holocene South Florida And Caicos Platform, British West Indies
Lenore P. Tedesco , Robert C. Aller
Journal of Sedimentary Research (SEPM)
... the excess activity gradients, which assign particle transport either entirely to advection or to diffusive mixing. Assuming steady-state supply and transport...
1997
Self-Similar Evolution of Semi-Infinite Alluvial Channels with Moving Boundaries
Herve Capart, Mourad Bellal, Der-Liang Young
Journal of Sedimentary Research (SEPM)
... at the onset: diffusive behavior, constant diffusion coefficient and straight initial profiles. The solution further applies only to spatial scales greater than...
2007
Geothermal heat flow in the northeast margin of the Gulf of Mexico
Seiichi Nagihara, Kelly Opre Jones
AAPG Bulletin
..., shallow subseafloor thermal structure in large areas like those present in areas A and B. Alternatively, there can be widespread diffusive flow...
2005
Controls on Fabric Development and Morphology of Tufas and Stromatolites, Uppermost Pethel Group (1.8 Ga), Great Slave Lake, Northwest Canada
Michael C. Pope, John P. Grotzinger
Special Publications of SEPM
... in the walls of agates bot ryoidal mineral clusters speleothems and at least certain types essentially limited to a diffusive process However it seems hard...
2000
Deciphering Earth's Natural Hourglasses: Perspectives On Source-To-Sink Analysis
William Helland-Hansen, Tor O. Sømme, Ole J. Martinsen, Ian Lunt, John Thurmond
Journal of Sedimentary Research (SEPM)
..., G., Seal, R., Sinha, S.K., Southard, J.B., and Wilcock, P.R., 1992, Downstream fining by selective deposition in a laboratory flume: Science, v. 258...
2016
Oceanographic Currents and the Convexity of the Uppermost Continental Slope
Neil C. Mitchell, John M. Huthnance
Journal of Sedimentary Research (SEPM)
... of a 3-D multiple lithology diffusive model in stratigraphic modeling, in Harbaugh, J.W., Watney, W.L., Rankey, E., Slingerland, R., Goldstein, R...
2008
The Effect of Oil Saturation on the Mechanism of Compaction in Granular Materials: Higher Oil Saturations Lead to More Grain Fracturing and Less Pressure Solution
Shanvas Sathar, Richard H. Worden, Daniel R. Faulkner, P. Craig Smalley
Journal of Sedimentary Research (SEPM)
...., Renard, F., Dysthe, D.K., Bjorlykke, K., and Jamtveit, B., 2002b, Coupling between pressure solution creep and diffusive mass transport in porous...
2012
40Ar/39Ar hornblende ages from southwestern Maine: evidence for Late Paleozoic metamorphism
David P. West Jr., Daniel R. Lux, Arthur M. Hussey II
Atlantic Geology
... with a systematic decrease in apparent K/Ca ratios. Diffusive loss of 40Ar from a less retentive phase during a later thermal event is suggested. The next five...
1988
Deep-Sea Drilling Interstitial Water Studies: Implications for Chemical Alteration of the Oceanic Crust, Layers I And II
Joris M. Gieskes
Special Publications of SEPM
... concentrations of to biogenic To depth that is in diffusive communication with the overlying ocean a strontium gradient will exist 245 Gieskes...
1981
Miocene marine calcite concretions: a collaboration of microbial and inorganic processes?
Donald F. McNeill, Megan E. Smith, Matthew Ponce, Peter K. Swart, James S. Klaus
Journal of Sedimentary Research (SEPM)
... in a diffusive system (via minor dolomite precipitation or clay adsorption) may be a viable mechanism in many of these muddy siliciclastic−carbonate...
2025
Post-Paleocene Evolution of Regional Groundwater Flow-Systems and Their Relation to Petroleum Accumulations, Taber Area, Southern Alberta, Canada
J. Toth, T. Corbet
CSPG Bulletin
... portions of the slowly diffusive aquitard is nearly or completely adjusted to S2, and may be considered to be steady state (Fig. 7A). In the lower...
1986
Constraints on Riverine Valley Incision and the Response to Sea-Level Change Based on Fluid Mechanics
Julian Thorne
Special Publications of SEPM
..., and sediment delivery ratio. These changes are theoretically derived from an advective-diffusive-wave equation for flood-wave travel in a tributary...
1994
Automatic calibration of stratigraphic forward models for predicting reservoir presence in exploration
O. Falivene, A. Frascati, S. Gesbert, J. Pickens, Y. Hsu, and A. Rovira
AAPG Bulletin
... and applications of a 3-D multiple lithology, diffusive model in stratigraphic modeling, in Harbaugh, J. W., et al., eds., Numerical experiments in stratigraphy...
2014
Anatomy and Dynamics of a Floodplain, Powder River, Montana, U.S.A.
James E. Pizzuto, John A. Moody, Robert H. Meade
Journal of Sedimentary Research (SEPM)
... for computing diffusive transport, and the levee slope was used for computing advective transport. The vertical and horizontal turbulent diffusion...
2008
Geometry of carbonate accumulations
Wolfgang Schlager
Special Publications of SEPM
... shelf break because the diffusion decay constant,λ = 0.5; this means that the transition between the highly-diffusive terrestrial regime and the low...
2005