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The AAPG/Datapages Combined Publications Database

Showing 30,483 Results. Searched 200,357 documents.

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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

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