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The AAPG/Datapages Combined Publications Database
Showing 33,062 Results. Searched 195,387 documents.
A Regional Velocity Cube for Depth Conversion on the Northwest Shelf
Maighréad Ní Dheasúna, Mark Ballesteros, James Leven
Petroleum Exploration Society of Australia (PESA)
... for well design. stacking velocity approximates the root mean Construction of the hiQbe'M model, the depth conversion requ ires the L1 A regional...
2012
Abstract: Resolution and Location Uncertainties in Surface Microseismic Monitoring; #90174 (2014)
Michael Thornton
Search and Discovery.com
... along the time/depth trade-off trajectory (Duncan et. al., 2010). This secondary diffraction sum, allows one to estimate the timing and location...
2014
Integration of Geological Data on Seismic Sections: GEOLOGICAL NOTES
L. F. Ivanhoe
AAPG Bulletin
... on the diagram. Such "geometric errors" are proportional to the angle of cross dip, depth, and method of plotting sections (straight ray, curved ray, et cetera...
1956
The impact of estimated temporal and spatial variability of water layer velocity on the correction of OBS data
Peter Scholtz, Truong Nguyen, Arash Jafar Gandomi
International Meeting for Applied Geoscience and Energy (IMAGE)
... for these errors, while a water velocity model gets updated from an initial uniform estimate to a final time- and depth-dependent version at the node locations...
2023
Inferring Stratigraphy from Seismic Data
R. E. Sheriff
AAPG Bulletin
..., a quantity called "stacking velocity" can be calculated (Fig. 5). Stacking velocity is used in adjusting the component traces in the common-depth-point...
1976
The Wave Equation Applied to Migration
D. Loewenthal, L. Lu, R. Roberson, J. Sherwood
Southeast Asia Petroleum Exploration Society (SEAPEX)
... of the relative inaccuracy of our velocity information, we will content ourselves with deriving a function B(x, τ), where the depth variable z has been replaced...
1978
Velocity Anomalies and Out-of-Plane Reflections in Barnicarndy 1, Canning Basin
Y. Zhan
Australian Petroleum Production & Exploration Association (APPEA) Journal
..., the only velocity information that can be used for depth conversion is either from the seismic stacking velocity inside the Barnicarndy Graben or offset...
2021
How to Make Velocity Corrections
John W. Daly
AAPG Bulletin
...How to Make Velocity Corrections John W. Daly 1944 615 628 28 5. (May) The fundamental assumptions in regard to velocity distribution and the effect...
1944
Depth conversion and seismic inversion of the Scarborough gas field
Joseph Kremor, Manish Agarwal, Paul Spaans, Ung Sing Wong
Petroleum Exploration Society of Australia (PESA)
.... This resulted in depth errors at the geophysical markers. Then, using these depth errors, a fast track velocity model was generated and the seismic and relative...
2019
Baram Field The 3D Marine Re-Processing Challenge
Jörg J. Wicker, Jonathan E. F. Stearn
Geological Society of Malaysia (GSM)
... at a velocity of 3,000 mls. The depth map would generally be too deep. The well calibration of the depth maps removed the long wavelength errors, but also...
1999
The Application of PSDM VTI Method to Generate a Velocity Model That Can Solve the Mistacking Problem
Aulia Ahmad Nafis, Hasan Nurudin, Ikhsan Hanurogo, Bagus Sapto M, Ahmad Zaenudin
Indonesian Petroleum Association
... the strong lateral velocity well so mistacking can be avoided. The With this method, errors in estimating the velocity and the anisotropic effect...
2018
The Application of Velocities and Models to Seismic Interpretation
G. Jarrota
Indonesian Petroleum Association
..., interval velocities can be discerned, and time contours can be transformed directly into depth contours by using collections of velocity spectra. When...
1977
Ekofisk: First of the Giant Oil Fields in Western Europe: DISCUSSION
L. W. Minturn
AAPG Bulletin
... method can be made only from the seismic velocity assumptions used in the stacking procedure. These are suitable only for gross geologic groupings...
1982
Mapping with Two-Dimensional Seismic Data: Part 7. Geophysical Methods
I. R. Gordon
AAPG Special Volumes
... for a given depth, one can calculate a velocity (distance divided by time). Approximate velocities can be calculated using the stacking velocities...
1992
Seismic Modeling and Expression of Common Fold-Thrust Belt Structures; #42266 (2018)
Jianjun Li, Shankar Mitra
Search and Discovery.com
... are relatively low. Although depth migration can correct for many of the velocity related pitfalls discussed above, the processing is dependent on accurate...
2018
A Statistical Approach to Assessing Depth Conversion Uncertainty on a Regional Dataset: Cooper-Eromanga Basin, Australia
David Kulikowski, Catherine Hochwald, Dennis Cooke, Khalid Amrouch
Petroleum Exploration Society of Australia (PESA)
...; average (pseudo) velocity, time-depth trend, kriging with external drift using TWT, and kriging with external drift to tie stacking velocities to average...
2016
Critical Depth Uncertainty Analysis for Accurate Well Planning at Tangguh
Nurfiana Rachmawati
Indonesian Petroleum Association
... of this study, Although the CBM PSDM output is already in depth, the seismic depths do not exactly tie wellmarker depths because of the effect of velocity...
2017
What is Horizontal Resolution?
L. R. Denham, R. E. Sheriff
Indonesian Petroleum Association
.... BLACKBURN, G., 1980, Errors in stacking velocity – true velocity conversion over complex situations: Geophysics v. 45 pp. 1405-1488. GARDNER, G.H.F....
1981
Appendix A: Considerations for Optimum 3-D Survey Design, Acquisition and Processing
R. Malcolm Lansley
AAPG Special Volumes
... at the hydrophones within the streamer. The effect on the spectral content of the data will depend upon the source and streamer depths, the water depth...
2011
Abstract: Non-Hyperbolic Reflection Tomography for Better Imaging and Interpretation, by Zhaobo Meng and Chengbin Peng; #90105 (2010)
Search and Discovery.com
2010
Overview of Exploration Geophysics: Recent Breakthroughs and Challenging New Problems: Hydrocarbons
B. S. Flowers
AAPG Special Volumes
... is straightforward because the velocity overburden is simple: there are no sonic lenses to distort the ray paths and confuse the velocity and the dip determinations...
1976
Overview of Exploration Geophysics--Recent Breakthroughs and Challenging New Problems
B. S. Flowers
AAPG Bulletin
... to provide sufficient density of control to solve the problem uniquely. ELIMINATION OF NOISES AFTER STACKING Common-depth-point stacking is a velocity...
1976
2D Pre-Stack Depth Migration : Application to Inverted Grabens
C. Bunks, P. L. Pichon, L. Ben Brahim, Sekar Sakti
Indonesian Petroleum Association
... is obtained by an analysis of focusing spots which indicate errors in migration depth. In this paper a review of S-G migration and velocity estimation...
1993
Dip and Azimuth Determination in 3D CRS-Stack
A. Hendriyana, M. Jaya, R. Sule, A.D. Guntara
Indonesian Petroleum Association
... because of the Fresnel effect. Velocity is the only parameter required by conventional stacking. Stacking velocities represent long wavelength part...
2013
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