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The AAPG/Datapages Combined Publications Database

Showing 27,646 Results. Searched 191,756 documents.

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The Hydraulic Equivalence of Mica: DISCUSSION

William A. Burroughs

Journal of Sedimentary Research (SEPM)

... process or the variable responsible. The combined supposition, however, that one hydraulic v riable, fall velocity, is the one that ultimately controls...


Structure of Argentine Continental Margin

William J. Ludwig , John I. Ewing , Maurice Ewing

AAPG Bulletin

... this report. STRUCTURE SECTIONS The structure sections are composed of layers which are correlated mainly on the basis of seismic velocity...


A Nigerian Renaissance: Renewed interest in Africa's largest oil producer

John Balch, Matt Lamont, Polarcus, DownUnder GeoSolutions

GEO ExPro Magazine

... unaliased, with variable depth sampling output from the migration. There were no assumptions made about lateral or vertical velocity variations, apart...


The Generation of Scour Marks Near Obstacles

Peter D. Richardson

Journal of Sedimentary Research (SEPM)

... variables--that is to say, the transport depends not only on the range of values of fluid velocity, for example, but also upon the sequence in which...


Abstract: Effects of Lateral Heterogeniety Scales on AVO Trends; #90174 (2014)

Ramin Saleh, Emmanuel Bongajum, and Bernd Milkereit

Search and

... with offset/angle (AVO/AVA) depend on changes in the P-wave velocity(Vp), S-wave velocity (Vs), density and Poisson's ratio at a plane interface...


UK Continental Shelf: An Evolution in 3D Seismic Imaging of the Central North Sea

Matthew Dack, Gregor Duval, CGG

GEO ExPro Magazine

... reliable velocity model to date for accurate depth imaging, it was calibrated to 10 regional structural horizons and more than 200 wells. The key...


A novel approach to investigate the deposition of (bio)chemical sediments: The sedimentation velocity of cyanobacteria–ferrihydrite aggregates

Yuhao Li, Bruce R. Sutherland, Murray K. Gingras, George W. Owttrim, Kurt O. Konhauser

Journal of Sedimentary Research (SEPM)

...A novel approach to investigate the deposition of (bio)chemical sediments: The sedimentation velocity of cyanobacteria–ferrihydrite aggregates Yuhao...


The Interpretation of Vertical Sequences in Turbidite Beds: The Influence of Longitudinal Flow Structure

Benjamin C. Kneller, William D. McCaffrey

Journal of Sedimentary Research (SEPM)

... of a bed is generally an indication of the longitudinal velocity structure of the flow, and longitudinal gradients in suspended sediment concentration...


Reefs and Wave Action: ABSTRACT

Michael E. Philcox

AAPG Bulletin

... relations. Wave resistance as a criterion is therefore rejected, but as a variable characteristic, differing from one buildup to the next, it allows each...


Lithology characterisation of the roof and floor of the Moranbah measures coal seam using post-stack and pre-stack seismic inversion

Margarita Pavlova

Petroleum Exploration Society of Australia (PESA)

... looking at the relationship between lithology/gamma ray response and compressional impedance I observed that massive, blocky sandstones have high velocity...


Bed Configurations

J. C. Harms, J. B. Southard, D. R. Spearing , R. G. Walker

Special Publications of SEPM

... is the most natural. strength, either flow velocity or force exerted by the flow on the boundary. Flow depth is certainly a less important variable than flow...


The Use of Physical Modeling to Resolve Offshore Seismic Problems

B. J. Evans, M. Urosevic

Indonesian Petroleum Association

... at variable offsets, and at broadside azimuths to the receiver array. After particle motion and velocity analysis, the waves shown in Figure 3b were...


A Simple Universal Equation for Grain Settling Velocity

R.I. Ferguson, M. Church

Journal of Sedimentary Research (SEPM)

..., U.K., Pergamon, 290 p. Background The velocity with which particles of specified size settle in water is a fundamental variable in physical sedimentology...


Competence of Fine-grained Debris Flows

Monty A. Hampton

Journal of Sedimentary Research (SEPM)

... be uniform throughout the zones of shear if competence is independent of velocity (Figs. 7-9; eq. 10), but variable if competence is variable at low...


Chapter 8: Petrophysical Characteristics of the Ivie Creek Case-Study Area - Geological and Petrophysical Characterization of the Ferron Sandstone for 3-D Simulation of a Fluvial-Deltaic Reservoir (MP-02-6)

R.D. Jarrard, M.A. Chan, C.B. Forster, S.H. Snelgrove

Utah Geological Survey

... of the spatially variable permeability field within the delta fronts, to investigate how geological processes control the spatial distribution...


The Importance of Overburden and Pore Pressure on Horizontal Stress Magnitude Determination; an Example from the Delaware Basin

Kristen Kozlowski, Melia Da Silva, David Brown, Jack Taylor, Heather Willems, Tim Watson, Don Burch, Trevor Hutton, Chris Christensen, Mohan Manohar

Unconventional Resources Technology Conference (URTEC)

... are of variable quality and certain intervals do not contain enough shale velocity points to be reliable. Therefore, in intervals such as the upper Bone Spring...


Time to Depth Conversion and Uncertainty Characterization for SAGD Base of Pay in the McMurray Formation, Alberta, Canada, #80360 (2014)

Amir H. Hosseini, Hong Feng, Abu Yousuf, Tony Kay,

Search and

...) and Kriging with External Drift (KED) are applied, and the calculation of a linear velocity model is exercised. The results show the range and structure...


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

... Canada is all in the public domain after a variable confidentiality period. For this project the public well data was used to extract location, deviation...


Rock Physics Diagnostics as a Prerequisite for Optimal Petrophysics

Akash Mathur, Hilfan Khairy

Indonesian Petroleum Association

... the variable porosityvelocity relationship for different types of formations attributed to post depositional processes. Without performing proper rock...


Acostic Velocities, Synthetic Seismograms, and Lithologies of Thrusted Precambrian Rocks, Rocky Mountain Foreland

R. Randy Ray, Robbie Gries, James W. Babcock

Rocky Mountain Association of Geologists

... at the thrust boundary between Precambrian rocks and underlying sedimentary rocks. Reflections in the Precambrian have been associated with both velocity...


Well Log Prediction Using Machine Learning

Sundeep Sharma

Oklahoma City Geological Society

..., and A. R. Gregory. “Formation velocity and density—The diagnostic basics for stratigraphic traps.” Geophysics 39.6 (1974): 770-780. Every geoscientist...


RhoVe Method II: Empirical Density-Temperature-Effective Stress Transform, #42300 (2018).

Matt Czerniak,

Search and

... ([email protected]) Abstract The rhob-velocity-effective stress (RhoVe) method represents an empirical approach to pore pressure analysis...


Acoustic Velocity Modeling of Unconventional Reservoirs

Alessandra Simone, Lori Hathon, Michael Myers

Unconventional Resources Technology Conference (URTEC)

...Acoustic Velocity Modeling of Unconventional Reservoirs Alessandra Simone, Lori Hathon, Michael Myers URTeC: 2667 Acoustic Velocity Modeling...


Wave-Formed Sedimentary Structures„A Conceptual Model

H. Edward Clifton

Special Publications of SEPM

... Geological Survey California 94025 ABSTRACT produced by shoaling waves can be integrated into a conceptual model based on velocity um velocity asymmetry d...


Numerical Modeling of Ooid Size and the Problem of Neoproterozoic Giant Ooids

Dawn Y. Sumner, John P. Grotzinger

Journal of Sedimentary Research (SEPM)

... be transported highly variable over short times. In a real system, velocity changes continuously and ooids are transported for variable distances; this might...


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