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The AAPG/Datapages Combined Publications Database
Showing 30,483 Results. Searched 200,357 documents.
Bed-load Movement Experiments: Dry Creek, California: NOTES
E. A. Keller
Journal of Sedimentary Research (SEPM)
... their influence chiefly through bed velocity. Velocities near the bed in Dry Creek were measured with a rodmounted, pygmy Price current meter...
1970
Porosity Reduction in Sandstone by Quartz Overgrowth
Frederic Leder, Won C. Park
AAPG Bulletin
.... 243-284. Beard, D. C., and P. K. Weyl, 1973, Influence of texture on porosity and permeability of unconsolidated sand: AAPG Bulletin, v. 57, p...
1986
Tidal Dynamics and Seasonal Dependent Import And Export of Fine-Grained Sediment Through a Back-Barrier Tidal Channel of the Danish Wadden Sea
J. Bartholdy, D. Anthony
Special Publications of SEPM
... s measurements over a is the concentration in the ith interval current velocity tidal and Uj kglm3 positive in the flood mls direction If the flood tidal...
1998
Grain Orientation in Sands and Sandstones
W. Schwarzacher
Journal of Sedimentary Research (SEPM)
...°, and this never exceeds 10 deg;. The choice of a representative direction in a grain is a most important matter and has been discussed by Dapples (1945...
1951
Research and application of shallow surface wave prediction attenuation in dual complex mountainous exploration areas
Xinyue Song, Zaijin Zhang, Yi Bao, Cheng Wang, Zhonghua Zhao, Yangyang Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
... for subsequent velocity modeling and target layer imaging. Suppressing shallow surface wave is an important means to improve the shallow signal-to-noise...
2024
Interpreting 3-D Seismic Data
Bruce S. Hart
Special Publications of SEPM
... and, unfortunately, there are no universally accepted guidelines . The type of interpretation software that is being used will also influence...
2000
Abstract: Real-Time Hole Cleaning Index Improves the Rate of Penetration by Monitoring the Cutting Concentration in the Annulus During Drilling Operations; #91204 (2023)
Mohammed Murif Al-Rubaii, Dhafer Alshehri
Search and Discovery.com
... annular velocity by using cutting rise and cutting transport velocities with hole angle influence. The flow behavior index and consistency index were...
2023
Regional Variability of Beach and Foredune Characteristics Along the Texas Gulf Coast Barrier System
Gerald L. Shideler, Karen P. Smith
Journal of Sedimentary Research (SEPM)
... material, was not used in the size analyses because of its highly aberrant influence on derived statistical grain-size parameter values. Grain-size...
1984
Transport and Deposition of Resedimented Conglomerates: The Cap Enrage Formation, Cambro-ordovician, Gaspe, Quebec
Ian C. Davies, Roger G. Walker
Journal of Sedimentary Research (SEPM)
..., but groups of beds up to 4 m thick can be walked out for 400 m along strike. As will be shown later, the grand vector mean paleocurrent direction is within...
1974
Meteorological Influences on Fecal Coliform Pollution in the Mississippi Sound
David F. Ufnar,, Jennifer A. Ufnar, T. West White, Jason T. Townsend, Dawn Rebarchik, R. D. Ellender
GCAGS Transactions
... be a source of the fecal coliform bacteria observed in the water column. The changes in wind direction and velocity may induce more energetic conditions...
2005
Sedimenit Gravity Flows
Gerard Middleton, John B. Southard
Special Publications of SEPM
.... The grains are falling relative to the fluid at a velocity w, so in order to keep them in suspension the fluid must be lifting them at the same rate...
1984
Minimum Miscibility Pressure Calculation for Oil Shale and Tight Reservoirs With Large Gas-Oil Capillary Pressure
Kaiyi Zhang, Bahareh Nojabaei, Kaveh Ahmadi, Russell T. Johns
Unconventional Resources Technology Conference (URTEC)
... study and stated that there is no change of MMP due to the influence of large capillary pressure on phase equilibrium. In our study, we will calculate...
2018
Recent Sedimentation and the Search for Petroleum
W. C. Krumbein
AAPG Bulletin
... whose rate of change in any direction is the component of the velocity in that direction. Moreover, the direction of motion is always normal...
1945
Multiscale Seismic Models of Complex Fracture Networks
Richard L. Gibson Jr., Yalchin Efendiev, Judith Chester, Yongchae Cho, Edith Sotelo
Unconventional Resources Technology Conference (URTEC)
... systems. This also allows the prediction of the influence of a small number of major fractures that may control the reservoir flow behavior...
2017
A Breakthrough of Bekapai Converted S-Wave Processing and its Positive Impact to Structural Interpretation
Effendy Siawira, Andy Kristianto, Jaques Bonnafe, Natalia Anggriani, Cepi M. Adam, Zainal Abidin, Firman B. Kurniawan, Supriady, Claudio Strobbia, Yang Liu, Youning Li, Xiagui Miao, Libo Zi, Guishui Wang
Indonesian Petroleum Association
... of S-waves with a lower velocity than Pwaves and being insensitive to fluid effect, promises a better image of the subsurface. Advanced seismic processing...
2015
Evaluation of a Conceptual Model for the Transverse Sediment Transport System of a Coastal Barrier Chain, Middle Atlantic Bight
Gerald L. Shideler
Journal of Sedimentary Research (SEPM)
... 1973 Vol. 43 No. 3. (September), Comparative size analyses of adjacent foreshore, berm, and dune sediments were conducted along a coastal barrier chain...
1973
A Late Cretaceous Submarine Canyon in Brazil: Chapter 10
Roy O. Lindseth, Vagner L. Beraldo
AAPG Special Volumes
... in the acquisition process. The missing information is recovered from stacking velocity analyses. Low-frequency components derived in this manner are added...
1985
Seismic first arrival tomography for top salt velocity update: A case study in the Santos Basin, Brazil
Paulo H. B. Alves, Marco Cetale, Roger M. Moreira, Sérgio L. E. F. da Silva, Jorge Lopez
International Meeting for Applied Geoscience and Energy (IMAGE)
... and to provide an unaltered depiction of velocity properties. The initial model projected as a well log (orange curve) is shown in Fig. 1 (b). In our analyses...
2024
Deep-Sea Sediments of the Indian Ocean
Wolfgang Schott
Special Publications of SEPM
... supplied to the sediment, and on the physical and chemical properties of the ocean water which influence the carbonate content of the deposits. The varied...
1955
Deep-Sea Sediments of the Indian Ocean: Part 5. Pelagic Deposits
Wolfgang Schott
AAPG Special Volumes
... to the sediment, and on the physical and chemical properties of the ocean water which influence the carbonate content of the deposits. The varied influence...
1939
Seal Failure Related to Basin-scale Processes
Christian Hermanrud, Hege M. Nordgrd Bols, Gunn M. G. Teige
AAPG Special Volumes
... in reservoirs, fault reactivation, and their influence on leakage from hydrocarbon reservoirs. It was concluded that seal-failure analysis is seldom...
2005
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)
..., Saskatchewan, Canada: Geomorphology, v. 25, p. 43–55. Dietrich, W.E., 1982, Settling velocity of natural particles: Water Resources Research, v. 18...
2008
Modeling and Optimization of Proppant Distributions in Multi-Cluster Hydraulic Fracture-Natural Fracture (HF-NF) Networks
Yidi Wu, George J. Moridis, Thomas A. Blasingame
Unconventional Resources Technology Conference (URTEC)
...irection, M/T [N∙s/m] Relative velocities in the normal direction, L/T [m/s] Relative velocities in the tangential direction, L/T [m/s] Fluid density...
2021
Changes in Flow Direction at a Point Caused by Obstacles During Passage of a Density Current
Stephen A. Morris,, Jan Alexander
Journal of Sedimentary Research (SEPM)
... in the region of observed flow thickening because of an increased particle flux to the bed caused by velocity reduction. The upflow limit of the influence...
2003
Tidal Dunes and Sand Waves in Deep Outer-Shelf Eenvironments, Bajocian, Se Jura, France
Urs Neumeier
Journal of Sedimentary Research (SEPM)
... at a depth of about 100-150 m under the occasional influence of tidal currents. Interpretation of seismic reflection data indicates a shelf-edge...
1998