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The AAPG/Datapages Combined Publications Database
Showing 33,054 Results. Searched 195,354 documents.
Time Depth Conversion of a Prospect With Near-Surface Velocity Anomalies Using Stacking Velocites and PSDM Velocities: A Comparison
Tan Boon Hua, Lothar Schulte
Indonesian Petroleum Association
...Time Depth Conversion of a Prospect With Near-Surface Velocity Anomalies Using Stacking Velocites and PSDM Velocities: A Comparison Tan Boon Hua...
2011
Critical Analysis of Stack Seismic Systems: DISCUSSION
Richard H. Hopkins
AAPG Bulletin
...--to the point where its effect is less than other random errors in the statics, velocity, detector plants, etc. I believe the crux of the matter...
1967
AAPG Memoir 76, Chapter 18: Velocity Estimation for Pore-Pressure Prediction
David W. Bell
AAPG Special Volumes
..., display, and analysis influences the way data is manipulated Figure 29. Removing effect of water depth on stacking velocity reveals common...
2001
An Interpreter's Guide to Improvements in Depth Imaging through Model-Based Velocity Estimation and Refinement
Andy Furniss
Petroleum Exploration Society of Australia (PESA)
... to depth using an average velocity map or a series of interval velocity maps. This process is adequate in areas of low dip without lateral...
1999
A Comparison of Depth-Conversion Methods in the Gulf of Mexico
Melvan D. Carter, Gary R. Hyatt
GCAGS Transactions
...-conversion error as a function of layer, depth and space. While the results cannot be generalized blindly, the seismic average-velocity technique...
1990
An Interpreter's Guide to Improvements in Depth Imaging Through Model-Based Velocity Estimation and Refinement
Andy Furniss
Indonesian Petroleum Association
... techniques such as stacking velocity inversion and coherency inversion are equally applicable to depth conversion projects as they are to pre-stack...
2000
Chapter Ten-part 2: Depth Conversion
Leslie R. Denham, Dave K. Agarwal
AAPG Special Volumes
... the measurement of stacking velocity. One simplification shows that the stacking velocity is equal to the RMS velocity divided by the cosine of the dip...
2011
The Application of Image Processing Techniques for Complex Structures
V. Sudhakar, I. T. McMahon
Indonesian Petroleum Association
... dependence and raypath effects due to depth-dependent interval velocities. DMO corrects for the dip dependence of moveout and inherently applies a migration...
1987
A Comparison of Depth Conversion Methods in Buntal Gas Field, Block B, Natuna Sea, Indonesia
Irfan Yuliandri Syukri, John Hughes, Medi Medianesterian
Indonesian Petroleum Association
... analysis shows residual RMS depth errors for each method are similar. For Beta-0, using Dix corrected stacking velocity gives the smallest error (11...
2014
Possible Causes of Velocity Mis-Ties
R. A. Broding
Oklahoma City Geological Society
...% or better, with a maximum error of 5%. This data was taken from West Texas, New Mexico, Wyoming and Colorado. ERRORS IN VELOCITY LOGGING Instrumental...
1961
Lateral Changes in Seismic Velocities and Their Effect on Depth Prediction
J. Pinchin, M. Bayly
Petroleum Exploration Society of Australia (PESA)
... many seismic velocity analyses on a tight grid of lines, statistical errors in these velocity measurements can be reduced. An analysis of stacking...
1989
Critical Analysis of Stack Seismic Systems
L. E. Nugent, Jr.
AAPG Bulletin
... techniques more seriously. Even with similar sediments, velocity values normally increase with increasing depth because of compaction and cementation...
1967
Abstract: 2D Depth Velocity Analysis without Tomography; #90187 (2014)
J. Patrick Butler and Randy Kolesar
Search and Discovery.com
...Abstract: 2D Depth Velocity Analysis without Tomography; #90187 (2014) J. Patrick Butler and Randy Kolesar AAPG Search and Discovery Article #90187...
2014
A new system for efficiently acquiring vertical seismic profile surveys
Tim Dean, Nghia Nguyen, Brenton Armitage, Huw Rossiter
Petroleum Exploration Society of Australia (PESA)
... error allowed to achieve a velocity error of 1%, whilst Figure 3b shows the velocity error resulting from different depth interval errors assuming...
2018
Limitations of Reflection Seismograph
L. E. Nugent, Jr.
AAPG Bulletin
... is of the order of instrumental or low-velocity zone correction errors. In any event, reflections indicating dip of 5° or more or horizontal displacements...
1953
A Comparison of the Various Methods of Dip Migration
H. Bruce Mayo
Oklahoma City Geological Society
... position of the reflection source. This dip arm was calibrated with a time -- depth scale, equivalent in average velocity to the given instantaneous...
1958
Derivation of Seismic Depth Sections
H. Buchholtz, W. Houba
Geological Society of Malaysia (GSM)
... velocity distribution. The knowledge of a reliable velocity model is required for this depth conversion. Stacking velocities are not recommended to be used...
1987
AAPG Memoir 76, Chapter 19: The Future of Pressure Prediction Using Geophysical Methods
Alan R. Huffman
AAPG Special Volumes
.... Small timing errors inherent in picking each event can cause significant uncertainty in the interval velocity where the total time separation...
2001
Chapter 10-part 3: 3-D Depth Image Interpretation
William L. Abriel, Joseph P. Stefani, Robert D. Shank, David C. Bartel
AAPG Special Volumes
.... One very important concept that needs to be understood is the sensitivity of seismic imaging to variations in overlying earth velocity, and why depth...
2011
Abstract: An Analysis of the Benefits of 3D Pre-Stack Time Migration (Paper 11)
Peter Whiting
Geological Society of Malaysia (GSM)
... events will need a slower stacking velocity. Hence the stacking velocity is multivalued and stacking much compromise at least one of these events...
1996
Impact of Pre-Stack Depth Migration on the Anama Prospect, Papuan Foreland Basin
K. Bradey
Papua New Guinea (PNG) Petroleum Convention Proceedings
... used in the early 461 attempts at depth conversion. Methods that rely on stacking velocities include the Dix method and stacking velocity inversion...
2000
Abstract: A Case History of Velocity Problems in the Shadow of a Large Growth Fault in the Frio Formation, Texas Gulf Coast
James L. Allen and J. M. Bruso, Jr.
Houston Geological Society Bulletin
... that over 200 ms of apparent seismic dip in the shadow of the growth fault was false. When we used stacking velocities to perform a depth conversion...
1989
Granite and Limestone Velocity Determinations in Arbuckle Mountains, Oklahoma
B. B. Weatherby, W. T. Born, R. L. Harding
AAPG Bulletin
... within observational errors and yield a value of 17,950 ft./sec. for the longitudinal wave velocity. The data taken over the shorter span show...
1934
Stratigraphic Velocity Interpretation: National Petroleum Reserve--Alaska: Chapter 12
E. W. Peikert
AAPG Special Volumes
... for each sequence. Calibrated or residual (corrected for depth effect) velocity maps can be compared with maps of depositional environments or seismic...
1985
The Use of Modern 3D Seismic Data Processing Techniques, 5D Interpolation, and Anisotropic PSTM to Improve Existing 3D Data in South Louisiana Data—Pulling the Scales from our Eyes; New Truth from Existing Datasets
John Asma, John Stevens, Sukhdev Hyare, Dave Spaulding
GCAGS Transactions
... to fill in the missing data. Figure 3 shows the effect of a 5D dip-steered interpolation on a cross-line from a 3D survey. The data on the left...
2013