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Welcome to the new Datapages Archives

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The AAPG/Datapages Combined Publications Database

Showing 27,259 Results. Searched 190,142 documents.

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Success Factors for Effective Subsurface Imaging of Overthrust Belt Legacy Seismic Data

Walt Ritchie and Mihai Popovici

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... • Complex geology • Variable salt layer in overburden • Presence of rapid lateral velocity variations. Copyright © AAPG. Serial rights given by author...


Velocity and Velocity

M. Al-Chalabi

Petroleum Exploration Society of Australia (PESA)

...Velocity and Velocity M. Al-Chalabi Velocity and 'Velocity' M. AI-Chalabi 1 Abstract Acquired seismic data contain the velocity distribution...


The Barque Structure Offshore New Zealand: Improving the Seismic Image Using Prestack Depth Migration; #41516 (2015)

Jim Montalbetti, Jeff Beckett, Graham Hodgkiss

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... surface interval velocity field in areas of the variable seafloor depth. 3. Perform prestack depth migration using this initial geomechanical update...


Fluorescent Tracer Study of Eolian Sand Transport: ABSTRACT

James C. Ingle, Jr.

AAPG Bulletin

... in response to variable wind "streamlines" over the dune. At 2.5 hrs. after tracer release a lag deposit of very coarse fluorescent grains remained...


Abstract: Automatic High-Density Constrained Velocity Picking; #90211 (2015)

Emil Blias

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...Abstract: Automatic High-Density Constrained Velocity Picking; #90211 (2015) Emil Blias Datapages/Search and Discovery Article #90211 CSPG© 2015 CSPG...


Refraction Profiles Over the Southern Rocky Mountain Trench Area of British Columbia

A. T. Lamb, D. W. Smith

CSPG Bulletin

... the Trench using all broadside and inline refraction data. A variable velocity tilt was used to account for the velocity variations in the overlying...


Stratigraphic Velocity Interpretation: National Petroleum Reserve--Alaska: Chapter 12

E. W. Peikert

AAPG Special Volumes

... will be restricted to this particular acoustic variable. Examination of data for individual wells as in Figure 6 is a good starting point for velocity/lithology...


Abstracts: Full Waveform Inversion Using One-way Migration and Well Calibration; #90173 (2015)

Gary F. Margrave, Robert J. Ferguson, and Chad M. Hogan

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... geophysicists. For clarity, we present the central theoretical result behind FWI as a mathematical theorem stating that a linear update to a migration velocity...


Abstract: Optimum Aperture Length for Improving Dispersion Curve Analysis in CMP Cross-Correlation of Surface Waves; #90187 (2014)

Roohollah Askari, Robert J. Ferguson, and Helen Isaac

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... the conventional CCSW (Hayashi and Suzuki, 2004) and more robust in the presence of variable source wavelet and noise. The S velocity model obtained from...


ABSTRACT: Wave Equation Prestack Depth Migration for Deep Gulf Coast Prospecting

Morgan Brown, Joe Higginbotham, Cosmin Macesanu

GCAGS Transactions

...., Ste. 156, Houston, Texas 77079 ABSTRACT The shallow section in the Gulf Coast normally exhibits a simple, depth-variable velocity profile, which...


ABSTRACT: Design Analysis of the Raymer…Hunt-Gardner Algorithm and Modification for Shaly Sands; #90118 (2011)

Hari Kumar

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.... As such the prevailing practice is to create regression algorithms that correlate acoustic velocity to porosity. Present work presents a modification...


EXTENDED ABSTRACT: Applications of Wave Imaging Technologies to Improve Deep Gulf Prospecting

Morgan P. Brown, Joseph H. Higginbotham, Cosmin Macesanu, Oscar E. Ramirez

GCAGS Transactions

... section in the Gulf Coast normally exhibits a simple, depth-variable velocity profile, and prestack time migration (PSTM) methods generally produce...


Chart Migrations

Frank A. Roberts

Oklahoma City Geological Society

.... These curves were constructed by plotting values of t/x against variable values of velocity. The sine and cosine values were added for convenience...


Petrophysical Properties of a Deformation Band Fault Zones in the Entrada Sandstone, Utah; #50861 (2013)

Kyle Fredericks, Laurel Goodwin, and Harold Tobin

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... velocity data from cores to the sonic logging scale. In situ high frequency velocity studies of variable facies within the Slickrock Member...


New Geophysical Techniques Improve Geological Interpretation: ABSTRACT

Gerald H. Westby

AAPG Bulletin

.... Seismic magnetic recording and replay, variable-density and variable-area recording cameras permit presentation of seismic data in a form which simulates...


ABSTRACT: Reflection Tomography for Validation of Subtle Structures: A Case History from Southern Tunisia; #90051 (2006)

Harald Granser, Oezsen Refik

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... static problems due to sanddunes at surface with low velocities but also by uncertainties in depth-conversion because of velocity variations...


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