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The AAPG/Datapages Combined Publications Database
Showing 31,905 Results. Searched 195,452 documents.
Depth correction using velocity for structure calibration at Leviathan Field, offshore Israel
Yijie Zhou, Brad Christensen, Lin Christianson
International Meeting for Applied Geoscience and Energy (IMAGE)
... challenges from depth uncertainties associated with the seismic migration velocity that cannot provide an accurate structural estimation due...
2023
Application of Traveltime Tomography and Kirchhoff Migration Methods to Improve the Seismic Cross-Section Resolution on 2D Land Seismic Data
Harmita Lestari, Nur Ayu Anas, Muh. Resky Ariansyah, Sabrianto Aswad, Heri Winarto
Indonesian Petroleum Association
... This process involves automatically NMO and stacking shot gather from floating datum using a constant speed. In this process the scanning velocity...
2019
An Interpreter's Guide to Improvements in Depth Imaging Through Model-Based Velocity Estimation and Refinement
Andy Furniss
Indonesian Petroleum Association
...-migration and ray-tracing procedure is then repeated for each constant interval velocity in the given range. Figure 2. Principles of coherency inversion...
2000
Abstract: Full Waveform Inversion Algorithm using Time Imaging Methods; #90174 (2014)
Hassan Khaniani, John C. Bancroft, Gary F. Margrave, and Eric von Lunen
Search and Discovery.com
... In the general case where the velocity inside the Earth is varying smoothly, the Double Square Root (DSR) equation serves as a starting point for total...
2014
2D Survey Earth Model Building and Depth Imaging Using 3D Grid-Based Tomography Technology
Eric Pearson, Suyang Chen
Indonesian Petroleum Association
... anisotropy model without well constraints using the final 3D velocity model for 2D anisotropic depth migration. This case study will describe...
2012
Imaging Beneath Complex Structure: Case History: ABSTRACT
Ken Larner, Bruce Gibson, Ron Chambers
AAPG Bulletin
...Imaging Beneath Complex Structure: Case History: ABSTRACT Ken Larner, Bruce Gibson, Ron Chambers 1981 947 948 65 5. (May) Migration is recognized...
1981
Imaging Beneath Complex Structure: A Case History: ABSTRACT
Bruce Gibson, Ken Larner, Ron Chambers
AAPG Bulletin
...Imaging Beneath Complex Structure: A Case History: ABSTRACT Bruce Gibson, Ken Larner, Ron Chambers 1983 1339 1339 67 8. (August) Migration...
1983
Pre-Migration Receiver Deghosting and Amplitude Fidelity: A Case Study From NWS Australia
Search and Discovery.com
N/A
Abstract: An Analysis of the Benefits of 3D Pre-Stack Time Migration (Paper 11)
Peter Whiting
Geological Society of Malaysia (GSM)
... imaging consists of NMO, DMO, stack and zero-offset time migration. Initially, NMO velocities are only approximate while constant velocity (or v(z) DMO...
1996
The SDP Dip Plotter
W. S. Hawes
Oklahoma City Geological Society
.... Figure 1 shows the form of the constant velocity case which may be used with good approximation in some areas where a very low rate of increase...
1958
Depth Imaging Seeing the Invisible
Vetle Vinje
GEO ExPro Magazine
... wave velocity is constant in echo-location. In the real earth velocities may vary from 1,500 m/s to more than 6,000 m/s. The energy does not travel...
2010
What Are You Interpreting? Your Seismic Image Could Be Misleading You!
R. T. Newrick, E. P. Gomez, J. K. Pullishy, S. D. Jensen, J. M. de Armas
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... imaging process along with a depth velocity model. The velocity model may be a single parameter velocity model in the case of isotropy or a four parameter...
2006
Abstract: DMO and NMO as Applied in Seismic Data Processing
Jiunnyih Chen
Geological Society of Malaysia (GSM)
... is available only in two-dimensional case. To extend DMO to 3D (three dimensional) case, those techniques operating on constant offset section...
1988
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
...Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015) Sylvestre...
2015
High Performance Seismic Data Migration for High Resolution Interpretation
C. N. Chernoff
Indonesian Petroleum Association
... are presented in Figure 24. Figure 23. Line 91: Input Data Figure 24. Line 91: 2D Migration, Constant Velocity The entire cube of data was also migrated...
1983
Seismic imaging of the Turtle Mountain structure, southwestern Alberta, Canada
J.H. Isaac, D.C. Lawton, C.W. Langenberg
CSPG Bulletin
... velocities to obtain a velocity model consisting of constant velocity polygons, as required by the Kirchhoff migration algorithm developed by Lawton...
2008
Chapter Ten-part 2: Depth Conversion
Leslie R. Denham, Dave K. Agarwal
AAPG Special Volumes
... velocities for each layer. The simplest case is where the velocity for each layer is constant. In this case, the interval from the surface to the base...
2011
Abstract: Use of Gravity Data to Enhance Seismic Depth Migration
Mark E. Weber, Brian S. Anderson, Barry C. Wiggins
GCAGS Transactions
... provide a low-cost method to enhance the seismic depth migration process by providing an independently measured constraint to the seismic velocity model...
2000
Abstract: Determining the Structure of Basalt Flows with Wide-Angle Seismic Data, by M. M. Fliedner, R. S. White, and J. Fruehn; #90923 (1999)
Search and Discovery.com
1999
Simultaneous Joint Inversion of Seismic and Gravity Data for Long Offset Pre-Stack Depth Migration in Northern Oman, #41569 (2015).
D. Colombo, M. Mantovani, M. De Stefano, D. Garrad, Hussain Al Lawati
Search and Discovery.com
... migration can be achieved only if a precise estimate of interval velocity in depth is available. The definition of a reliable velocity model for depth...
2015
Abstracts: Application of CSP Gather Modeling for Determination of Velocity Smoothing Operator for Prestack Kirchhoff Depth Migration; #90173 (2015)
Hassan Khaniani and John C. Bancroft
Search and Discovery.com
...Abstracts: Application of CSP Gather Modeling for Determination of Velocity Smoothing Operator for Prestack Kirchhoff Depth Migration; #90173 (2015...
2015
Interpretative PSDM Workflow for Solving Complex Imagery Below Faults and Carbonates Reefs in South Mahakam, Kutai Basin: An Interpreters Point of View
Cepi Muhamad Adam, Nadir Abdoun, Bertrand Duquet, Florent Bertini, Yves Le Stunff
Indonesian Petroleum Association
.... Initial Velocity Model and Shallow Horizons Interpretation A first Kirchhoff depth migration was run using an initial smoothed velocity model derived...
2009
Resolving complex velocity and gas absorption features with full-waveform inversion in the Taranaki Basin, New Zealand
Yuelian Gong, Dominic Fell, Robert Hunn, Richard Bisley, Alexander Karvelas, Bee Jik Lim
Petroleum Exploration Society of Australia (PESA)
...-accurate and higher-resolution velocity models than can be achieved with tomography. In this case study, we demonstrate the successful application...
2019
Improving Marcellus Imaging Through the Use of FWI and Joint Tomographic Inversion for Velocity and Epsilon
David McCann
Unconventional Resources Technology Conference (URTEC)
...) A is result of a constant velocity migration, CIG B is the result of a conventional velocity update, CIG C is the result of the uncoupled joint...
2018
Full-Waveform Inversion Application on 2D Slanted Streamer Data - A Case Study
Andreas Waluyo
Indonesian Petroleum Association
.... Reverse time migration (RTM) stack images and KPSDM gathers were created for quality control. The FWI inversion workflow used to update the velocity model...
2014