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The AAPG/Datapages Combined Publications Database
Showing 234 Results. Searched 200,293 documents.
Experience with Seismic Lithology (AVO) in Central Sumatra
Jeff Wright, Isdjulaedi Bakri, Budi Subiyanto
Indonesian Petroleum Association
... array for offsets out to 6288 ft. The array effect is time variant and more predominant at early times. The result of applying the new prestack...
1990
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
... unchallenged. However in many situations, a velocity model based on a time variant filtering of the stacking velocities may deliver results similar to the PSDM...
2011
Bayesian variational auto-encoder for seismic wavelet extraction
Ammar Ghanim, Ricard Durall, Norman Ettrich
International Meeting for Applied Geoscience and Energy (IMAGE)
...-supervised autoencoder for the extraction of time-variant, zero-phased wavelets, and a 1D flow net for time-shift estimation. Introduction Method...
2023
4D joint inversion and close-the-loop for production history matching and forecasting
Kelly Wrobel, J. P. Blangy, Tony Rolland, Evan Mutual, Klaus Bolding Rasmussen, Wendell Pardasie
International Meeting for Applied Geoscience and Energy (IMAGE)
... occurring due to production related changes in the subsurface and • Time-variant amplitude balancing to improve wavelet amplitude stability...
2023
Simplicity at Its Best: Estimating Depth Uncertainty at the Wiriagar Deep Paleocene Field, Eastern Indonesia
Made Susantha, Imam S. Harun
Indonesian Petroleum Association
... and time-variant manner. Individual reservoir sands are difficult to map, but bounding surfaces at Near Top Paleocene and Base of Late Cretaceous were...
2018
Basic Seismic Processing: Part 7. Geophysical Methods
Peter M. Duncan
AAPG Special Volumes
... by a number that increases with time. The exact time variant multiplier can be based on the theoretical concept of spherical spreading (related to the square...
1992
Passive Margins: Baltimore Canyon Trough, Mid-Atlantic OCS: Seismic Stratigraphy of Shell/Amoco/Sun Wells
R. N. Erlich, K. P. Maher, G. A. Hummel, D. G. Benson, G. J. Kastritis, H. D. Linder, R. S. Hoar, and D. H. Neeley
AAPG Special Volumes
.... The stacked data were then filtered with a time variant filter that followed the water bottom. Long window automatic gain control (AGC) scaling was used...
1987
Abstract: Comparing Post-stack AVO Inversion to Prestack Inversion for Estimating Rock Properties; #90171 (2013)
Paul F. Anderson
Search and Discovery.com
... higherorder move-out corrections or other brute-force methods to implement (e.g. time-variant trim static). It has been noted that the AVO plus post-stack...
2013
Abstract: Comparing Post-stack AVO Inversion to Prestack Inversion for Estimating Rock Properties; #90171 (2013)
Paul F. Anderson
Search and Discovery.com
... higherorder move-out corrections or other brute-force methods to implement (e.g. time-variant trim static). It has been noted that the AVO plus post-stack...
2013
Abstract: The Design and Application of Converted-wave COVs; #90187 (2014)
Richard Bale, Tobin Marchand, Keith Wilkinson, and Jeff Deere
Search and Discovery.com
... domain could certainly be extended to more advanced processing methods such as time-variant CCP stacking or to prestack time migration. As for PP...
2014
Abstract: 2D Depth Velocity Analysis without Tomography; #90187 (2014)
J. Patrick Butler and Randy Kolesar
Search and Discovery.com
... for the reflector and is not time variant NMO, so the data will dip above and below the reflection time (Figure 3). However, it is easy to see this; and some...
2014
Abstract: Investigating the Low Frequency Content of Seismic Data with Impedance Inversion; #90187 (2014)
Heather J. E. Lloyd and Gary F. Margrave
Search and Discovery.com
... a rough tie of well 12-27 was completed and the seismic data was balanced with a time-variant scaling operator. To create a good tie between the seismic...
2014
Abstract: Innovative QCs for More Effective 4D Processing; #90187 (2014)
Cyril Saint Andre, Benoit Blanco, Christian Hubans, and Benoit Paternoster
Search and Discovery.com
... and monitor (about 10 µs). This computation is fast and leads to a 3D volume where residual time shifts, often time variant, can be observed as in Figure...
2014
3-D Grid Types in Geomodeling and Simulation How the Choice of the Model Container Determines Modeling Results, #40477 (2009)
Jim Thom and Christian Höcker
Search and Discovery.com
.... As understanding of processes grew, it has become apparent that ‘static reservoir properties’ are not static but time-variant, being influenced by phenomena...
2009
2010
Modeling Discrete Fracture Networks in the Tensleep Sandstone: Teapot Dome, Wyoming, #50658 (2012)
Thomas H. Wilson, Valerie Smith, Alan L. Brown, Dengliang Gao
Search and Discovery.com
..., transition lines. The series of processes increases high frequency content and enhances structural details and discontinuities. The process is time...
2012
Exploration of the North Seribu Area, Northwest Java Sea
Roberto Fainstein
Indonesian Petroleum Association
.... Filter test trials for line 3995—W85. The test defines the best seismic wavelet at basement level and helps the design of time-variant filter...
1987
Seismic applications of the Radon transform and a new second-order traveltime local transform
Ehsan Soleymani, Mauricio Sacchi
International Meeting for Applied Geoscience and Energy (IMAGE)
... lead to Radon transforms computed in the ω − x domain or in the t − x domain. Conversely, time-variant paths such as those used for the hyperbolic...
2024
Geology and Discovery of Prudhoe Bay Field, Eastern Arctic Slope, Alaska: Case Histories
Dean L. Morgridge, William B. Smith Jr.
AAPG Special Volumes
... possible by deconvolution and time-variant filtering of digital reprocessing. Insert at bottom is diagram of truncation details as interpreted from...
1972
Prediction of 3-D Facies and Petrophysical Models using Seismic Inversion and Advanced Statistical Data Analytics in Midland Basin Study Area
V. Pandey, T. Nekrasova, I. Tsybulkina, K. Clemons, D. Li, B. Six
Unconventional Resources Technology Conference (URTEC)
... with Offset (AVO) fidelity for the accuracy of the inversion process. A time-variant, angle-variant alignment algorithm called dynamic warping is performed...
2020
Harmonic distortion discussion on seismic vibrators at low frequencies
Zhouhong Wei, Wang Rong, Liang Fuhe, Jason Criss
International Meeting for Applied Geoscience and Energy (IMAGE)
... the low frequency vibrator. The bottom plot shows the frequency-time (F-T) variant spectrum. Two vertical red arrow lines are added to identify...
2022
THE EARTH'S CRUST UNDER THE WILLISTON BASIN IN EASTERN SASKATCHEWAN AND WESTERN MANITOBA
Z. HAJNAL, C. M. R. FOWLER
Williston Basin Symposium
... of a time variant adaptive filtering process. After several different tests, the principles, which were described by Griffiths et...
1982
Seismic speckle as multiplicative noise explaining land reflections distorted by near-surface scattering
Andrey Bakulin, Dmitry Neklyudov, Ilya Silvestrov
International Meeting for Applied Geoscience and Energy (IMAGE)
...” gather obtained by repeating real data trace from the red box of Figure 6; (b) Perturbed gather after introducing spatially changing and time-variant...
2022
Highlights of 3D Surveys, Offshore Sarawak
H. J. E. Schmidt
Southeast Asia Petroleum Exploration Society (SEAPEX)
... interpretations, special acquisition parameters (dense infill shooting) and special processing routes were attempted. For example, time variant scaling...
1988
Finite-difference modeling of marine vibrator sources
Khalid Almuteri, Jeffrey Shragge, Paul Sava
International Meeting for Applied Geoscience and Energy (IMAGE)
..., enabling FD modeling. Konuk and Shragge (2020) extend this technique to address the challenge of dynamic sea surfaces by specifying a time-variant 4D...
2022