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The AAPG/Datapages Combined Publications Database

Showing 28,000 Results. Searched 193,507 documents.

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Abstract: Two Prestack Anisotropic Depth Migration Methods for Tilted TI Media; #90211 (2015)

Xiang Du, John Bancroft, Don Lawton, and Larry Lines

Search and Discovery.com

... assumption for the relationship between anisotropic parameters and variable velocities, A-PSPI algorithms can handle an arbitrary distribution...

2015

Abstract: The Long and Short Solutions of Near-Surface Anomalies; #90286 (2017)

Ralph Bridle

Search and Discovery.com

... of the diverse surface topographies surmounting a variable geologic sub-surface. Modeling the near-surface depth/velocity diversity can be classified...

2017

Seismic Modelling in 3D for Migration Testing

Search and Discovery.com

... reflecting surfaces, with arbitrarily variable reflection coefficients, embedded in a 3D medium characterized by a v ( z ) background velocity...

2013

Abstract: 3D Seismic Imaging in the Pakistan Foothills: A Case History; #90172 (2014)

Victor Dolgov, Rob Vestrum, Jon Gittins, Géza Wittman

Search and Discovery.com

... locations and red indicates shot locations. Variable shot-point coverage depends on surface conditions. (b) Elevation map. Elevation ranges from 500 m (blue...

2014

Abstract: P-wave and S-wave Near-surface Characterization in Northeast British Columbia (NEBC); #90174 (2014)

Liliana M. Zuleta and Don C. Lawton

Search and Discovery.com

... to calculate the depth and velocity of the layers that were detected with the offset of 1500 m used during the acquisition. The objective...

2014

"Basement" to East Coast Continental Margin of North America

M. A. Mayhew

AAPG Bulletin

... of seismic layers of velocity greater than 4.5 km/sec., and referred to as "basement." The configuration of this surface of the East Coast continental...

1974

Shallow Seismic Survey on Weeks Island, Louisiana ... an Attempt to Define "Top of Salt"

G. L. Kinsland , A. W. Rutter III

GCAGS Transactions

... impedance contrast exists at the clastic sediment/salt interface by virtue of the strong velocity contrast between the shallow clastic sediments...

1994

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...

1985

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...

1968

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...

2014

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...

1968

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

Ramin Saleh, Emmanuel Bongajum, and Bernd Milkereit

Search and Discovery.com

... 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...

2014

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...

2021

Well Management Strategy Through Integrated Production Modeling: Study Case Well B-5

Budi Khoironi, Amega Yasutra, Dedy Irawan

Indonesian Petroleum Association

... of flux limit to replace pressure drawdown limit since velocity of produce fluid through sand screen is the main variable affecting sand control failure...

2022

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...

1970

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...

2021

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...

2003

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...

2019

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...

1975

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...

1995

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