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The AAPG/Datapages Combined Publications Database
Showing 765 Results. Searched 200,293 documents.
Conventional Velocity Model Seems to Be the Best!
Hijreen Binti Ismail, M. Izham Kassim, Khairul Hamidi Khalid, Safitri Nurida, Wahyudin Bahri Nasifi, Hendra Iriansyah Darmawan, Rizki Krishna Pratama, M. Anuar Ismail, Noor Azmah Abdullah, Indah Edria Amorita
Indonesian Petroleum Association
... of the final stacking velocities was a major pitfall. for this study. METHODOLOGY Three velocity models were produced. The concept and theory of Vo-K...
2011
Investigation of DMO Algorithms during Test-Line Processing: Some Recommendations
Ng Tong San, Mohd. Hashim Abas, Leong Lap Sau
Geological Society of Malaysia (GSM)
... Figure 1. Reflection point dispersal in a one layer dipping model. tedious and often subjective task of velocity picks for stacking purposes. Here...
1996
Effective Data Denoising and Imaging in the Sanga Sanga PSC Using CRS Approach
Michele Buia, Paolo Marchetti, Amalia Setoputri, Teguh Nugraha
Indonesian Petroleum Association
.... It presents several advantages when compared to conventional stacking methods such as NMO/DMO stack; firstly it uses a traveltime moveout formula...
2008
Fracture Detection by Azimuthal Differential Residual Moveout
Juefu Wang
Search and Discovery.com
...Fracture Detection by Azimuthal Differential Residual Moveout Juefu Wang Fracture Detection by Azimuthal Differential Residual Moveout Juefu Wang...
Unknown
Fracture Detection by Azimuthal Differential Residual Moveout
Juefu Wang
Search and Discovery.com
...Fracture Detection by Azimuthal Differential Residual Moveout Juefu Wang Fracture Detection by Azimuthal Differential Residual Moveout Juefu Wang...
Unknown
Abstract: Converted-wave Time Imaging Nuts and Bolts; #90187 (2014)
Shaowu Wang, Thomas Hollis, and Wayne Nowry
Search and Discovery.com
..., 71, no. 2, S73–S83. Grechka, V., and I. Tsvankin, 1999a, 3-D moveout velocity analysis and parameter estimation for orthorhombic media: Geophysics, 64...
2014
Advanced Approach Toward Understanding Geologically Complex Area Using MDRS (Multi-Dip CRS): A Case Study
Naoshi Aoki, Shogo Narahara, Akihisa Takahashi, Tsukasa Nishiki
Indonesian Petroleum Association
... of post-stack data so that the result remains unaffected by an initial stacking velocity assumption. This method not only depicts conflicting dips more...
2011
Abstract: Extracting, Understanding & Utilizing Azimuthal Anisotropy Through Depth Imaging; #90316 (2017)
Pavel Vasilyev, Cara Smith, Anna Glushchenko, Paul Marsden, Edgardo Vargas
Search and Discovery.com
.... Any seismic imaging exercise requires the use of some sort of velocity model, whether it is simply applying moveout velocity prior to stacking...
2017
ABSTRACT: Resolution of Static Corrections in Sand Dune Regions: A successful Case History; #90051 (2006)
Koshy Thomas Thayyil, Ralph Bridle
Search and Discovery.com
... datum. To prevent stacking velocity distortions datum statics are applied from base of sand to final datum with the sand time applied residually. U...
Unknown
The Geophysical Aspects of Abnormal Fluid Pressures
Edward B. Reynolds, John E. May, Alf Klaveness
Houston Geological Society
... are being processed to generate plots of interval velocity versus depth which grossly approximate velocity surveys or integrated acoustic logs. Lower...
1971
Chapter Ten-part 2: Depth Conversion
Leslie R. Denham, Dave K. Agarwal
AAPG Special Volumes
... survey does, and usually more accurately. Seismic data themselves provide velocity information through measurement of normal moveout (NMO). If a seismic...
2011
Improving Marcellus Imaging Through the Use of FWI and Joint Tomographic Inversion for Velocity and Epsilon
David McCann
Unconventional Resources Technology Conference (URTEC)
... Hz. URTeC 2878680 4 Figure 3 Refraction tomography versus FWI in near surface increase velocity zone. Both approaches are valid in the type...
2018
Success Factors for Effective Subsurface Imaging of Overthrust Belt Legacy Seismic Data
Walt Ritchie and Mihai Popovici
Search and Discovery.com
... (i.e., only small residual moveout error represents large velocity variation). The net effect was that residual curvature (velocity) estimates from...
2009
New perturbation-based traveltime approximation for elastic VTI media
Shibo Xu, Alexey Stovas, Xingguo Huang
International Meeting for Applied Geoscience and Energy (IMAGE)
... the relative error versus offset and vertical S/P wave velocity ratio [α=Vs0/Vp0] in Figure 2. We find that for the approximation of the P-wave...
2022
Imaging of the Guando Field Colombia in Time and Depth
M.A. Hall, V. Avramovic, J.T. Basick, I. Novianti, D.T. Maucione, P.Kroshko, J.C. Garzon
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... residual moveout on pre-stack depth migrated gathers, which is used as input for the tomographic update of the interval velocity model. For the Guando...
2003
Abstract: AVAZ and VVAZ Practical Analysis to Estimate Anisotropic Properties; #90224 (2015)
Yexin Liu
Search and Discovery.com
... results. Seismic travel-time/velocity variations (VVAZ) For a single orthorhombic layer model, the moveout for conventional P-waves can be approximated...
2015
The Geophysicists' Bane: Multiple Suppression on the North West Shelf
C. R. T. Ramsden, M. R. Hobson, R. Cooper
Petroleum Exploration Society of Australia (PESA)
... multiple attenuator. Normal moveout corrections orientate primary reflectors horizontally on the common mid• point gather. Slower velocity multiple...
1988
ABSTRACT: Velocity Inversion Using Geological Constraints, by Jos Van Trier; #91035 (2010)
Search and Discovery.com
2010
SG14: The COCORP Seismic Reflection Traverse Across the Southern Appalachians - Data Acquisition and Processing
Frederick A. Cook, Larry D. Brown, Sidney Kaufman, and Jack E. Oliver
AAPG Special Volumes
..., automatic static corrections, velocity analyses (normal moveout correction for increasing source to receiver distances), summing (stacking) of the moveout...
1983
Direct Hydrocarbon Indications Using Seismic Amplitude Variations with Offset
William J. Ostrander
AAPG Special Volumes
... of incidence is easily related to shot-to-group through the normal moveout equation. Just prior to CDP stacking, seismic data traces generally are collected...
1987
Orthorhombic Imaging for Orthogonal Wide Azimuth Surveys in Mississippi Canyon, Gulf of Mexico; #30391 (2014)
Yang He, Adam Gersztenkorn, Sherry Yang, Bin Wang
Search and Discovery.com
..., is not sufficient for explaining moveout fluctuations detected in different azimuthal sectors. Orthorhombic anisotropy (ORT), which describes both...
2014
Abstracts: Converted Wave Processing in the EOM Domain; #90173 (2015)
Thais A. Guirigay and John B. Bancroft
Search and Discovery.com
... a converted wave velocity Vc from the hyperbolic moveout on a CSP gather. Moveout (MO) correction and stacking completes the prestack migration. We obtain Vc...
2015
High-precision seismic imaging for complex deep structures in the hydrocarbon exploration using a coherent-stacking-based least-squares migration
Jidong Yang, Jianping Huang, Tengfei Lin, Zhenchun Li, and Liang Chen
AAPG Bulletin
.... To account for the CIG moveout caused by the background velocity errors, here we use a coherent stacking method, which sums the CIGs along the tracked...
2024
Three-Dimensional Depth Imaging of Seismic Data, with Examples from the Overthrust Belt of Southwestern Wyoming
Alvin K. Benson
Wyoming Geological Association
... (a) the complications produced by rapid lateral velocity changes, velocity pull-up, etc., and (b) the necessity of using a depth imaging process versus...
1995
Joint Anisotropic Parameter Inversion Based on Nonhyperbolic Moveout and Azimuthal Amplitude Variance
Fangyu Li, Jie Qi, Bin Lyu, Kurt J. Marfurt
Unconventional Resources Technology Conference (URTEC)
..., for weak anisotropy, the P wave normal moveout (NMO) velocity at an arbitrary azimuth is given by Tsvankin (1997): Vnmo V0 1 2 cos2...
2016