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The AAPG/Datapages Combined Publications Database

Showing 660 Results. Searched 195,354 documents.

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A Comprehensive Approach to Depth Imaging in Thrust Belt Environments

Ron Schmid, Brian Link, Patrick Butler

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... imaging in thrust belt environments Ron Schmid*, Brian Link, Patrick Butler; Kelman Seismic Processing SUMMARY A novel, migration velocity analysis...

1997

Abstract: Constraining Anisotropy … Lessons from 2D Modeling; #90211 (2015)

Rob Holt

Search and Discovery.com

... are difficult to determine with precision. Velocity moveout and anisotropic moveout look identical on migrated gathers when reflection angles are less than 30...

2015

Abstracts: True-Amplitude PS Prestack Time Migration via 5D Interpolation; #90173 (2015)

Peter W. Cary, Albert Zhang

Search and Discovery.com

... of the velocities obtained from stacking velocity analysis can be used in CPSTM. Thus, only the PS-converted-wave velocity needs to be estimated precisely...

2015

Developing an Exploration Tool in a Mature Trend: A 3D AVO Case Study in South Texas

Mark E. Gregg, Charles T. Bukowski, Jr.

Houston Geological Society Bulletin

... are required to observe them. A large non-exclusive 3D survey was reprocessed using non-hyperbolic moveout and resulting angle stacks were analyzed...

2001

Abstract: Structurally-Consistent Interval Velocity Variation with Azimuth; #90187 (2014)

Darren Schmidt, Alicia Veronesi, Chris Davison, and Jeff Durand

Search and Discovery.com

... Dix equation and analytic treatment of normal moveout velocity for anisotropic media: Geophysical Prospecting, 47, 117-148. Tsvankin, I., 1997...

2014

Where Is My Horizontal Well? Use of Borehole Seismic Where Velocities Vary Laterally

Agus Muharam, Frank Musgrove

Indonesian Petroleum Association

... horizontal wells (out to a kilometer or more) are becoming common in field developments. In areas where overburden velocity varies laterally, it becomes...

1998

Abstract: Converted Wave Receiver Statics from First Break Mode Conversions; #90171 (2013)

Kristof De Meersman and Marcelo Roizman

Search and Discovery.com

... will often degrade the initial velocity estimates that are needed to produce the converted wave stack. Method Our method is largely based on findings...

2013

Abstract: Converted Wave Receiver Statics from First Break Mode Conversions; #90171 (2013)

Kristof De Meersman and Marcelo Roizman

Search and Discovery.com

... will often degrade the initial velocity estimates that are needed to produce the converted wave stack. Method Our method is largely based on findings...

2013

Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015)

Sylvestre Charles, David Mitchell, Rob Holt, Jiwu Lin, and John Mathewson

Search and Discovery.com

... in residual moveout that are difficult (if not impossible) to dissociate from residual velocity heterogeneity errors. Even though the isotropic depth...

2015

Seismic Evidence for Widespread Possible Gas Hydrate Horizons on Continental Slopes and Rises

Thomas H. Shipley, Mark H. Houston, Richard T. Buffler, F. Jeanne Shaub, Kenneth J. McMillen, John W. Ladd, J. Lamar Worzel

AAPG Bulletin

...). Data were collected with programmed increasing gain with time. Trace-by-trace gain normalization, normal moveout, stacking, filtering, and automatic...

1979

Abstract: Greedy Least-Squares and its Application in Radon Transforms; #90171 (2013)

Juefu Wang and Mark Ng

Search and Discovery.com

... iterations of the greedy method with minimum misfit. References Hampson, D., 1986, Inverse velocity stacking for multiple estimation: 66th Ann...

2013

NMO Application in VTI Media: Effective and Intrinsic Eta (Geophysics Paper 6)

Joel Starr, Maz Farouki

Geological Society of Malaysia (GSM)

... for transversely isotropic media. Geophysics, 60, 1550-1566. Alkhalifah, T., 1997. Velocity analysis using nonhyperbolic moveout in transversely isotropic media...

2008

Seismic Imaging at Conger: Lessons Learned in Gulf of Mexico Subsalt Imaging

Thomas C. Bergeon, Brad A. Robison

GCAGS Transactions

... areas of non-hyperbolic moveout and may be associated with near-surface velocity effects. Comparisons of pre-stack and post-stack data show some minor...

2006

The Application of a Linear Increase of Velocity with Depth to Seismic Dip Migration

J. E. Stones

Oklahoma City Geological Society

...-T = the moveout time of the reflection L = the spread length The values for (Vo) and (a) can be determined from the time-depth curve of one or more velocity...

1958

ABSTRACT: Confirming Depth Models using Differential Wide Aperture Seismic; #90061 (2006)

James H. Leven

Search and Discovery.com

...-stack depth migration or for precise depth conversion, particularly for field definition. Normal moveout (NMO) “velocity” analysis is a relatively...

2006

Seismic Characterization of the Fiordland Gas-hydrate Province, New Zealand

Miko Fohrmann, Andrew R. Gorman, Ingo A. Pecher

AAPG Special Volumes

... of the geometry, correction for spherical divergence, normal-moveout correction, stacking, poststack deconvolution, time-domain migration, and time-domain...

2009

An Overview of Reservoir Seismic Stratigraphy, Frontmatter

Tom Wittick

North Texas Geological Society

... Effects of Shale Stringers in a Thin Sand 7-13 High-Velocity Reservoirs 7-15 Chapter 8 AVO Amplitude-Versus-Offset What is AVO? 8-1...

1992

Abstract: Shallow VSP Survey using a Small Vibrator Source; #90171 (2013)

Joe Wong, Soo K. Miong, Robert R. Stewart, Eric V. Gallant, and Kevin W. Hall

Search and Discovery.com

... for a singlelayered earth, but it can be adapted to a multilayered earth simply by substituting the RMS stacking velocity vrms in place of the constant...

2013

Diving wave tomography: Velocity modelling using first arrival traveltime

Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu

Geological Society of Malaysia (GSM)

...-pass of velocity analysis using semblance method would give some degree of information on stacking velocity for the algorithm to begin reconstruction...

2022

Extended Abstract: Multiple Attenuation Research

PESA Staff

Petroleum Exploration Society of Australia (PESA)

... of velocity inversion. As a result, the stacking velocities of primary and multiple events are very similar. This unfortunate occurrence reduces...

1995

Abstracts: Oilsands: Not Your Average Seismic Data; #90173 (2015)

David Gray

Search and Discovery.com

... zero amplitude at zero offset with a risk of amplitude cross-over with offset. Therefore, stacking all these offsets may result in poor well ties...

2015

Abstract: A Time Migration before Stack

Richard C. Cooper, Malcolm R Hobson

Geological Society of Malaysia (GSM)

... processing sequence. Similarly during the 1980's, we saw a proliferation of research and development of partial pre-stack migration operators, or Dip-Moveout...

1990

Wide-Band Velocity Filtering--The Pie Slice Process: ABSTRACT

Peter Embree, John P. Burg, Milo M. Backus

AAPG Bulletin

...Wide-Band Velocity Filtering--The Pie Slice Process: ABSTRACT Peter Embree, John P. Burg, Milo M. Backus 1963 1769 1769 47 9. (September...

1963

Abstract: Interpretation of Natural Fractures from the Traveltime Variation with Source-receiver Azimuth in the Alberta Foothills; #90172 (2014)

Draga A. Talinga, Don C. Lawton

Search and Discovery.com

... and differences in the results. Introduction In azimuthally anisotropic media, the moveout velocity varies with azimuth even if the layer...

2014

ABSTRACT: Capturing Bulk Rock Volume (BRV) Uncertainty - A workflow incorporating seismic (pre-stack and post stack data) and well data

Abigail Maxwell

Geological Society of Trinidad & Tobago

.... The residual moveout of the gathers can tell us about the validity of our velocity model and what areas of the model may require adjustments (either...

2022

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