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The AAPG/Datapages Combined Publications Database

Showing 765 Results. Searched 200,357 documents.

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Current Trends in Geophysics

H. E. Stommel, J. M. Graul

Indonesian Petroleum Association

... of in this connection, wave equation processing is by no means limited to this important concept. Improved velocity estimates, stacking procedures, coherency...

1978

Machine learning-based residual moveout picking

Farhad Bazargani, Wenjun Zhang, Anu Chandran, Zaifeng Liu, Harry Rynja

International Meeting for Applied Geoscience and Energy (IMAGE)

... picking with minimum human intervention and no need for editing. INTRODUCTION In travel time tomography for velocity model building, residual moveout (RMO...

2022

Large-Scale Pore Pressure Prediction After Pre-Stack Depth Migration in the Caspian Sea (Geophysics Paper 24)

Norbert van de Coevering, Hazim Hameed Al-Dabagh, Liau Min Hoe, Tony Jolly

Geological Society of Malaysia (GSM)

... with a 2nd order stacking velocity correction. Such an automated velocity analysis was performed using a grid of 8 Inlines x 8 Crosslines (100 m x 100 m...

2008

Abstract: Estimation of Group Velocity using Slant Stack Generalized S Transform Based Method; #90174 (2014)

Roohollah Askari, Robert J. Ferguson, and Kristof DeMeersman

Search and Discovery.com

...Abstract: Estimation of Group Velocity using Slant Stack Generalized S Transform Based Method; #90174 (2014) Roohollah Askari, Robert J. Ferguson...

2014

G. Non-Normal Incidence Reflections and the Determination of Lithology - Use of Shear Waves and Amplitude with Offset

Norman S. Neidell

AAPG Special Volumes

... the compressional velocity arriving at the same time and exists at moderate offsets. Compressional modeling would therefore be unable to match the moveout...

1987

Abstract: First-Arrival TomoStatics and Residual Statics for Near-Surface Corrections; #90211 (2015)

Jie Zhang, Oz Yilmaz, and Nanxun Dai

Search and Discovery.com

... intermediate datum, and then back to a floating datum with a constant replacement velocity. We shall then apply the tomostatics to the far-offset...

2015

High-End Model Building Techniques for Revealing a Pre-Carbonate Reservoir Offshore East Natuna Basin, Indonesia

Jun Wang, Yonghe Guo, Yitao Chen, Muhammad Nauvall Juliansyah, Nick Crabtree

Indonesian Petroleum Association

... information and dense residual moveout (RMO) information to produce an accurate velocity update for the deep section. The imaging uplift brought...

2023

Geomechanical and Geophysical Analysis of a Wattenberg Field through Wavefield Re-Datuming and Inversion

Jyoti Behura, Pete Smith, Oscar Quezada

Unconventional Resources Technology Conference (URTEC)

..., we aim to extract rock properties derived from AVO, velocity, and attenuation analyses that play key roles in the characterization and development...

2016

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

2D Survey Earth Model Building and Depth Imaging Using 3D Grid-Based Tomography Technology

Eric Pearson, Suyang Chen

Indonesian Petroleum Association

... direction). In this area, the geologic structure and associated seismic velocity model are extremely complex. In order to achieve the best possible...

2012

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

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

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

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

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

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

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

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

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

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