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The AAPG/Datapages Combined Publications Database
Showing 765 Results. Searched 200,293 documents.
Determination and Delineation of Anomalously Pressured Gas Accumulations in the Siberia Area, Washakie Basin, Wyoming
Ronald C. Surdam, Zun Sheng Jiao, Yuri Ganshin, Nicholas G. K. Boyd III
Wyoming Geological Association
.... The moveout analyses on CMP gathers with consecutive stacking velocity function calculation were performed on a sample-by-sample basis. The spatial...
2001
Three-Dimensional Depth Imaging of Seismic Data to Assess Subsurface Geology in Northern Utah and Southwestern Wyoming
Alvin K. Benson
Utah Geological Association
... lateral velocity variations in the rocks and the importance of using depth imaging versus conventional time imaging of seismic data when mapping complex...
1999
Abstract: The Elastic Look-Ahead Walkaway and Predictive Drilling Applications; #90213 (2015)
Scott Leaney, Alberto Malinverno, and Michael Jones
Search and Discovery.com
... recordings – velocities are estimated using either stacking coherency or reflection tomography. But these velocity estimates may still be too...
2015
Imaging below Seafloor Canyons and other Rugose Features
Dominic Fell, Kiran Dyal, Tony Hallam, Sebastian Nixon
Australian Petroleum Production & Exploration Association (APPEA) Journal
.... In addition, resolving the short-scale velocity anomalies in the overburden provides improved focusing and event stacking throughout the section. Conclusion...
2017
ABSTRACT: Reflection Seismology in Azimuthally Anisotropic Media, by Leon Thomsen; #91038 (2010)
Search and Discovery.com
2010
ABSTRACT: Analysis of Moho Depth and Crustal Vp/Vs Ratios in the Western U.S.; #90113 (2010)
Kristopher A. Castille and Harold Gurrola
Search and Discovery.com
.... The depth to the Moho and average Vp/Vs ratio of the crust (Pwave velocity divided by S-wave velocity) can be estimated by analysis of the moveout (delay...
2009
4D image velocity scan to improve the 4D quantitative interpretation
Mohamed Hatab, Colin MacBeth
International Meeting for Applied Geoscience and Energy (IMAGE)
... and focusing, velocity model versus well sonic, mis-tie analysis, and also image stack. All of these QCs are subjective and more qualitative. Figure 2: 4D...
2022
Extracting Meaningful Estimates of Rock Properties from 3-D Anisotropic Velocity Models Derived from Borehole Microseismic
Scott Taylor, Jeremy King, Ben Schaeffer, Todd Hibbitts, Lucas McGreaham, Khaled Ghuneim
Unconventional Resources Technology Conference (URTEC)
... 9 Localizations: The next series of images shall contrast the microseismic localizations made within a 1D isotropic velocity model versus a 1D...
2016
Imaging Solutions for Geophysical Challenges in South East Asia (Paper A13)
N. El Kady, Z. Mohd Dom, Y. Prasetyo, M. Bayly, G. Nyein, P. Vasilyev, N. Mat Don Ya
Geological Society of Malaysia (GSM)
... geologically plausible and geophysically reliable velocity models is critical. To match the expectations from the depth imaging outcome, velocity model...
2012
The Use of Physical Modeling to Resolve Offshore Seismic Problems
B. J. Evans, M. Urosevic
Indonesian Petroleum Association
... direction) versus 2-D CMP gathers often displaying non-hyperbolic moveout due to the strong velocity contrast across the fault in the 2-D case. The smaller...
1995
Rock Physics Guided Velocity Modeling and Reverse-Time Migration for Pore Pressure Prediction and Depth Imaging in Complex Areas
Nader C. Duta, Sherman Yang, Yangjun (Kevin) Liu, Lawrence Cho, Jie Cui
Indonesian Petroleum Association
... to accommodate the new velocity model, if needed. We have found that the moveout in the deeper part is insensitive to the anisotropy parameters. An initial...
2015
Advances in Depth Imaging Technology: Rock Physics Guided Migration of Seismic Data in 3D
Nader C. Dutta, Sherman Yang, Jianchun Dai
Indonesian Petroleum Association
... dependent velocity curves are generated for each rock type, given the temperature versus depth at a location on the 3D geologic space. An example is given...
2012
Chapter 10-part 3: 3-D Depth Image Interpretation
William L. Abriel, Joseph P. Stefani, Robert D. Shank, David C. Bartel
AAPG Special Volumes
..., the sedimentary signal is very strong, the velocity is well behaved, and the gathers are quite flat prior to stacking. With close inspection, some noise (multiples...
2011
Pre
Search and Discovery.com
N/A
Using Multi-Focusing 3-D Diffraction Imaging to Predict Fracture Swarms in Unconventional Reservoirs
Marianne Rauch-Davies, Alex Berkovitch, Kostya Deev
Unconventional Resources Technology Conference (URTEC)
... on the MultiFocusing moveout time correction, which adequately describes not only reflection but also diffraction events. Optimal summation...
2013
Machine Calculation of Migration Data
E. Usdin
Oklahoma City Geological Society
.... It is programmed to solve the migration problem for linear increase of velocity with depth. A sample print-out of a dip calculation is shown...
1958
ABSTRACT: Amplitude Vs. Offset Analysis in Finely Layered Media, by Herbert W. Swan; #91022 (1989)
Search and Discovery.com
1989
Towards flexible demultiple with deep learning
Mario Fernandez, Norman Ettrich, Matthias Delescluse, Alain Rabaute, Janis Keuper
International Meeting for Applied Geoscience and Energy (IMAGE)
... (NMO) velocity estimation. To address this, we propose a supervised DL training method for demultiple based on moveout discrimination in the CDP domain...
2024
Gaining Insight into Formation Anisotropy Using Full Azimuth Imaging and Analysis Tools
Duane Dopkin, Anat Canning, Philip Neri
Petroleum Exploration Society of Australia (PESA)
... to perform a detailed automatic resid ual moveout/velocity analysis in a robust and effective way. . . . .. I ~ I . +Ilk ~ - •I...
2010
ABSTRACT: Model-Based Multiple Suppression: Application to Seismic Prospecting in Santa Barbara Channel, by Larry Morley and Paul Heuermann; #91035 (2010)
Search and Discovery.com
2010
Geomechanical Approach to Resolve Severe Velocity Variations and Remove Image Distortions below Rugose Seafloor (Paper A16)
S. Birdus, A. Artyomov, L. Li, S. Xin
Geological Society of Malaysia (GSM)
... on our best a-priori estimation. Then we run PSDM, measure depth-residual moveout and set tomographic inversion to find velocity anomalies that would...
2012
Amplitude Versus Offset (AVO) Analysis: Part 7. Geophysical Methods
Allan T. Long, R. C. Anderson
AAPG Special Volumes
...Amplitude Versus Offset (AVO) Analysis: Part 7. Geophysical Methods Allan T. Long, R. C. Anderson 1992 398 400 ME 10: Development Geology Reference...
1992
ABSTRACT: Seismic Derived Velocity Models For Drillability Assessment: Resolution Requirements and Scaling Strategies, by Albertin, Martin L.; #90026 (2004)
Search and Discovery.com
2004
Pre-Stack Imaging: Time or Depth? (Paper 25)
Carl Notfors, Peter Whiting, Geoff Mansfield
Geological Society of Malaysia (GSM)
... they handle lateral velocity variations. The depth algorithm comprehends any lateral velocity variation whereas the time algorithm assumes local...
2000
Impact of Pre-Stack Depth Migration on the Anama Prospect, Papuan Foreland Basin
K. Bradey
Papua New Guinea (PNG) Petroleum Convention Proceedings
... throughout the Tertiary carbonates, hindering accurate determination of a suitable velocity field. Furthermore, stacking velocities are affected by raypath...
2000