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The AAPG/Datapages Combined Publications Database
Showing 1,097 Results. Searched 200,293 documents.
Abstract: Rapid Velocity Images of Complex Structures, by P. J. Barton and R. A. Edwards; #90923 (1999)
Search and Discovery.com
1999
Estimate near-surface velocity with reversals using deep learning and full-waveform inversion
Yong Ma, Xu Ji, Weiguang He, Tong Fei
International Meeting for Applied Geoscience and Energy (IMAGE)
... domain for both training and prediction. In this way, we avoid domain conversions between time and depth in DNN. This timedomain velocity profile can...
2022
Oil generation as the dominant overpressure mechanism in the Cenozoic Dongying depression, Bohai Bay Basin, China
Xiaowen Guo, Sheng He, Keyu Liu, Guoqi Song, Xunjun Wang, Zhongsheng Shi
AAPG Bulletin
... overpressured mudstones have higher acoustic traveltime values than the normally pressured mudstones for a given depth, and the top of the overpressure...
2010
Extended full-waveform inversion to improve the subsalt imaging in GOM
Guojian Shan, Jingru Chen, Zhemin Tan, John Chen, Yue Wang, Xiaoting Lou, Jennifer Zhang, William Lester
International Meeting for Applied Geoscience and Energy (IMAGE)
...-skipping arises from an inaccurate initial velocity model, causing a discrepancy in traveltime beyond half the wavelength of the given frequency...
2024
Abstract: Seismic Monitoring of a Steamflood at South Casper Creek Oil Field, Wyoming, by P. Johnston, D-S. Lee, F. Martens, and N. Wachi; #91009 (1991)
Search and Discovery.com
1991
Estimation of Seismic Attenuation in the Delaware Basin Using Peak Frequencies
Małgorzata Drwiła, Leo Eisner, Zuzana Jechumtalová, Denis Anikiev, Randy Keller
Unconventional Resources Technology Conference (URTEC)
... (Keller et al., 1980). The sediments above the basement mainly consist of Paleozoic clastic rocks that include carbonates and evaporates. While velocity...
2018
Deep Structure of Northern Mississippi Embayment
A. Ginzburg , W. D. Mooney , A. W. Walter , W. J. Lutter , J. H. Healy
AAPG Bulletin
...-velocity 7.3-km/sec basal layer. The base of the crust ranges from a 39 km (24 mi) depth at the southern end of the profile to a 46 km (29 mi) depth...
1983
ABSTRACT: Interpretation of Continuous-Offset Seismic Data in Central California Margin, by Nathaniel E. Putzig and Alan R. Levander; #91035 (2010)
Search and Discovery.com
2010
Integration of Vertical Seismic, Surface Seismic, and Well-log Data at the Mallik 2L-38 Gas-hydrate Research Well, Mackenzie Delta, Canada
M. W. Lee, T. S. Collett, W. F. Agena
AAPG Special Volumes
... sediments in the depth interval 600900 m (19682953 ft) is estimated to be approximately 65 using equation 4, with the interval velocity of 2100 m...
2009
Mitigating cycle skipping in FWI through preconditioned multidimensional optimal transport
James McLeman, Tim Burgess, Tom Rayment, Victor Chua
International Meeting for Applied Geoscience and Energy (IMAGE)
.... Unfortunately, this approach is prone to cycle skipping when the supplied velocity is too far from the truth. Starting FWI at lower frequencies...
2022
Abstract: TTI Anisotropic Depth Migration: Which Tilt Estimate Should We Use?; #90211 (2015)
Francois Audebert and Volker Dirks
Search and Discovery.com
...-way traveltime along the normal ray, the apparent slowness (traveltime gradient) at the emergence point, and the apparent NMO velocity, Vnmo (related...
2015
Acquisition and Ananlysis of Wide-Angle Reflection and Refraction Seismic Data
Paul L. Stoffa
Circum Pacific Council Publications
... seismic coverage with expanded partial apertures is obtained along the seismic line. These seismic data will result in improved velocity-depth...
1989
Seismic Attenuation Analysis for Reservoir Description
Search and Discovery.com
... is the NMO shift at an offset for an event starting from two8Q way traveltime t 0 at zero-offset. Δt is a function of t 0 , RMS velocity and offset...
2013
NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers
E. Blias
Search and Discovery.com
... is utilized to determine an explicit formula for azimuthally-dependent NMO velocity in a HTI layered media with depth-varying orientation...
Unknown
NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers
E. Blias
Search and Discovery.com
... is utilized to determine an explicit formula for azimuthally-dependent NMO velocity in a HTI layered media with depth-varying orientation...
Unknown
An Inverse Approach for Relating Seismic Velocity and Overpressure to Permeability and Sedimentation History in Deep Basins, #40863 (2012)
Hector M. Moreno, Tim A. Minshull, Rosemary A. Edwards,
Search and Discovery.com
... evolution with depth and an empirical law for the permeability as a function of porosity. Model output has been used to estimate the P wave velocity...
2012
Prestack Depth Imaging Within the Makassar Straits, Eastern Kalimantan, Indonesia
Chris Willacy, Suryadi Oemar, A. Edy Hermantoro, Paul Gilleran
Indonesian Petroleum Association
... was used to attack the water bottom and supra-fold multiples which are strong throughout the region. Velocity model building and prestack depth migration...
2000
Recent Advances in the Characterization of Unconventional Reservoirs with Wide-Azimuth Seismic Data
Ran Bachrach, Colin M. Sayers, Sagnik Dasgupta, Josimar Silva, Stefano Volterrani
Unconventional Resources Technology Conference (URTEC)
... thickness is approximately 60 ft. Azimuthal velocity anisotropy analysis was performed on the densely sampled 3D data. The data were depth migrated...
2013
Microseismic Without Dots Probabilistic Interpretation and Integration of Microseismic Surveys
Ulrich Zimmer
Unconventional Resources Technology Conference (URTEC)
... probability of a gridpoint (GP) for being the event location given the sensor positions (SPi), the velocity models (VMj) and the measured traveltime arrivals...
2017
A stochastic modeling method of seismic velocity and anisotropy parameters in VTI medium using travel time detectability criterion
Andrey H. Shabelansky, Huafeng Liu, Cory J. Hoelting, Min Yang, Jinsong Chen
International Meeting for Applied Geoscience and Energy (IMAGE)
... such as depth uncertainty estimation. In this paper, we present a 3D stochastic method for generating velocity and anisotropy parameters models...
2022
Investigation of DMO Algorithms during Test-Line Processing: Some Recommendations
Ng Tong San, Mohd. Hashim Abas, Leong Lap Sau
Geological Society of Malaysia (GSM)
... not be used solely for suppressing high velocity linear noise and lessening back scattered energy. Other filtering options are available. INTRODUCTION...
1996
Full Waveform Acoustic Logging: Part 7. Geophysical Methods
C. H. Cheng
AAPG Special Volumes
... (compressional) wave traveltime through the rock. ull waveform acoustic logs, however, provide a large amount of other information. This includes S (shear...
1992
ABSTRACT: Depth Conversion for Stacked Reservoirs in Tertiary Clastics; #90017 (2003)
Christian Höcker
Search and Discovery.com
... in Tertiary clastics is usually addressed in a rather simplistic fashion. Functions relating 2-way traveltime to depth are used and deviation from...
2003
Abstract: Azimuthal Anisotropy as a Potential Fracture Diagnostic from 3D Surface Seismic Data: Example from Wildcat Hills, Alberta; #90211 (2015)
Draga Talinga and Don Lawton
Search and Discovery.com
..., Alberta, Canada Abstract In azimuthally anisotropic media, normal-moveout velocity is represented as an ellipse in the horizontal plane...
2015
-- no title --
Ehsan, Athar
Search and Discovery.com
... and stratigraphic features. From the dispersion relation, grid sizes adapted to local velocity with depth, which not only simulated wavefields with higher...
Unknown