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The AAPG/Datapages Combined Publications Database
Showing 83 Results. Searched 200,357 documents.
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Broad bandwidths reveal double the expected sediment depth in the Northern Carnarvon Basin
Jo Firth, Mark Stanley
Petroleum Exploration Society of Australia (PESA)
... and therefore delivers unfocused ghost wavefronts, enabling attenuation of the ghosts by designature. The designature process requires the use of an accurate far...
2016
Abstract: 2D Depth Velocity Analysis without Tomography; #90187 (2014)
J. Patrick Butler and Randy Kolesar
Search and Discovery.com
... as epsilon changes A static shift is being used to correct moveout. Reflector 1 Reflector 2 Reflector 3 3 reflectors Bedding direction Raypaths vel...
2014
Abstract: Raypath-Consistent Shear Wave Statics; #90224 (2015)
Raul Cova, David Henley, and Kris Innanen
Search and Discovery.com
... on the assumption of nearly-vertical raypaths through the LVL responsible for statics. However, the low velocity of S-waves magnifies the delays...
2015
Structure of the Tokai segment from the integrated high-resolution seismic imaging: A case study from the eastern Nankai Trough
Andrzej Grszczyk, Rafael Almeida, Romain Brossier, Ludovic Mtivier
International Meeting for Applied Geoscience and Energy (IMAGE)
... and blue lines in Fig. 2a that are associated with wavefronts and rays sampling thrusts located towards the frontal part of the prism. Further, red...
2022
Data Enhancement from a 486-Channel Streamer
Bill Dragoset, Ken Larner
Pacific Section of AAPG
.... To preserve that detail, however, the time delays used in the beam-steering must be tailored to align the array effectively with the arriving wavefronts...
1980
High-resolution Measurements of Elasticity at Core Scale. Improving Mechanical Earth Model Calibration at the Vaca Muerta Formation.
Anton Padin, Gilles Pijaudier-Cabot, Alain Lejay, Hamid Pourpak, Jean-Philippe Mathieu, Atef Onaisi, Gregory Boitnott, Laurent Louis
Unconventional Resources Technology Conference (URTEC)
... velocity gage (Naik et al., 2003; Trtnik et al., 2009) measuring the transit time of the P- and S-wavefronts generated by a piezoelectric transducer...
2019
Australian Insights into Streamer Technology Innovations
Andrew Long
Petroleum Exploration Society of Australia (PESA)
...-/eve! source array (lower) decoup!es the primary and ghost source wavefronts. The ghost source wavefront is no longer parallel to the sea-surface...
2009
Limitations on Resolution of Seismic Reflections and Geologic Detail Derivable from Them: Section 1. Fundamentals of Stratigraphic Interpretation of Seismic Data
Robert E. Sheriff
AAPG Special Volumes
... as this point of view is, it is more realistic to think in terms of a wavefront, the location of the disturbance resulting from a source. Wavefronts...
1977
Advances in Geophysical Techniques for the Detection of Drilling Hazards and Their Application to Seismic Exploration
D. C. N. Pratt, Tong Pow Mun
Southeast Asia Petroleum Exploration Society (SEAPEX)
..., noise, spherical spreading, emergence angles, reflector curvature, spherical wavefronts, transmission co-efficients, inelastic attenuation...
1990
What is Horizontal Resolution?
L. R. Denham, R. E. Sheriff
Indonesian Petroleum Association
..., but a static correction of necessity assumes a vertical direction of propagation; and only wavefronts traveling at any angle convey information...
1981
Separation of simultaneous source wavefields using convolutional neural network
Zhehao Li, Hua-Wei Zhou, Kang Fu
International Meeting for Applied Geoscience and Energy (IMAGE)
..., the interfering source wavefronts coming from other nearby shots behave as noise. This lays the foundations for separation of blended data by exploiting...
2022
Physical Basis of Reflection Seismology
Bruce S. Hart
Special Publications of SEPM
...) . At the left, an initial acoustic pulse is generated . The energy expands out as circular wavefronts (in an isotropic ediu ) like ripples in a pond, although...
2000
Semi-inverse relationship between critical angle and reflectivity coefficient, and its implication in seismic survey design, processing, and interpretation
Chen Bao
International Meeting for Applied Geoscience and Energy (IMAGE)
... the wavefronts travel in sediments. That means for many reservoirs that are too shallow to allow the incidence angle to build up, it might...
2024
Time-lapse matching of OBN seismic data using 2D convolutional neural networks
Ramon C. F. Araújo, Gilberto Corso, Samuel Xavier-de-Souza, João M. de Araújo, Tiago Barros
International Meeting for Applied Geoscience and Energy (IMAGE)
... wavefronts do not take the same propagation paths as the reflections from the reservoir. The training region is defined as a rectangular region...
2024
Anisotropy Kinematics Clarified through Regime Rrays Model
William J. Vetter
Search and Discovery.com
... the nuances in anisotropy kinematics, the association details for wavefronts and “socalled rays” progression velocities with their analytical front...
Unknown
Anisotropy Kinematics Clarified through Regime Rrays Model
William J. Vetter
Search and Discovery.com
... the nuances in anisotropy kinematics, the association details for wavefronts and “socalled rays” progression velocities with their analytical front...
Unknown
Abstract: A Low Rank Based Seismic Data Interpolation Via Frequency-Patches Transform and Low Rank Space Projection; #90224 (2015)
Zhengsheng Yao, Mike Galbraith, and Randy Kolesar
Search and Discovery.com
... data, seismic events are sparse, i.e. energy is mostly concentrated at wavefronts that reflect from sub-surface reflectors, which means that if we...
2015
Wave-Front Diagrams in Seismic Interpretation
H. R. Thornburgh
AAPG Bulletin
.... 4) on the first underlayer line which will be on one of the wavefronts. (In the figure, the point A happens to coincide with the surface-first...
1930
Application of finite difference eikonal solver for traveltime computation in forward modeling and migration
Amir Mustaqim Majdi, Seyed Yaser Moussavi Alashloo, Nik Nur Anis Amalina Nik Mohd Hassan, Abdul Rahim Md Arshad, Abdul Halim Abdul Latiff
Geological Society of Malaysia (GSM)
... zones have been covered by the wavefronts. Table 1: Parameters applied on the seismic acquisition simulation in Tesseral Pro software. Acquisition scheme...
2021
Permafrost Studies in the Norman Wells Region, Northwest Territories
P. J. Kurfurst, R. M. Isaacs, J. A. Hunter, W. J. Scott
CSPG Special Publications
... spacing of the wavefronts under the roadbed, resulting from lower seismic velocities, indicates that permafrost is absent. The north half of the plot...
1973
Time-Lapse Seismic Monitoring of Individual Hydraulic Frac Stages Using a Downhole Distributed Acoustic Sensing Array
Gary Binder, Aleksei Titov, Diana Tamayo, James Simmons, Ali Tura, Grant Byerley, David Monk
Unconventional Resources Technology Conference (URTEC)
... velocity model is shown in green derived from a sonic log. Eikonal-based wavefronts are shown illustrating incident angles along the well from both sources...
2019
Assessing Single and Multiwell Fiber Optic Data for Microseismic Monitoring: An example from HFTS2
J. Andres Chavarria, Gustavo Ugueto, Yassine Oukaci, Lisa Laflame
Unconventional Resources Technology Conference (URTEC)
.... Analysis of the various fiber configurations revealed clear wavefronts in both horizontal and vertical portions of the B3H and B4H wells (Fig. 2). Arrivals...
2022
An Explanation of the Logarithmic Spiral Plan Shape of Headland-Bay Beaches
Paul H. Leblond
Journal of Sedimentary Research (SEPM)
... the bathymetry in terms of a depth function which var es with distance and direction from the headland and vanishes at the beach. The wave field is assumed...
1979
Outlining Shale Masses By Geophysical Methods
A. W. Musgrave , W. G. Hicks
AAPG Special Volumes
... in the same manner, and the wavefronts were plotted on the distance-versus-depth plot. The difference between the two plots indicates that a large shale...
1968
II. Migration to Remedy Geometric Distortions
Robert E. Sheriff
AAPG Special Volumes
... of the reflections at the different locations and regarded the common tangent to those arcs as the reflecting interface. The idea of striking wavefronts...
1981
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