Welcome to the new Datapages Archives
Datapages has redesigned the Archives with new features. You can search from the home page or browse content from over 40 publishers and societies. Non-subscribers may now view abstracts on all items before purchasing full text. Please continue to send us your feedback at emailaddress.
AAPG Members: Your membership includes full access to the online archive of the AAPG Bulletin. Please login at Members Only. Access to full text from other collections requires a subscription or pay-per-view document purchase.
Welcome to the new Datapages Archives
Search Results > New Search > Revise Search
The AAPG/Datapages Combined Publications Database
Showing 148 Results. Searched 195,452 documents.
Least Square Q-Kirchhoff Migration: Implementation and Application
Xiaodong Wu, Yi Xie, Joe Zhou, Dechun Lin, Yu Wang
Petroleum Exploration Society of Australia (PESA)
... is approximated by Hessian filtering. This new method compensates for absorption effects by honoring raypath and reduces migration artifacts through...
2018
Improvement of Seismic Tomographic Imaging by Downward Continuation and Modified SIRT
Teuku A. Sanny, D. Santoso, D. Dahrin, Fatkhan, Alfian B.
Indonesian Petroleum Association
..., the angle between the line normal to the surface and the raypath must be determined. This angle can be determined from the difference between...
1996
Extended Abstract: Using Crosswell Measurements to Enhance Velocity Model Calibration for Real-Time Microseismic Monitoring
Leah J. Hogarth, Conrad Kolb, Joël Le Calvez
GCAGS Transactions
... as opposed to at the surface. Both the receivers and source are moved up the well to create dense raypath coverage over a wide range of depths and angles...
2016
Traveltime Computations for Locating the Source of Micro Seismic Events and for Forming Gridded Traveltime Maps
John C. Bancroft
Search and Discovery.com
... a spherical wavefront. The raypath and gridded traveltime estimations assume that the local velocity in the area defined by the defined times is constant...
Unknown
Traveltime Computations for Locating the Source of Micro Seismic Events and for Forming Gridded Traveltime Maps
John C. Bancroft
Search and Discovery.com
... a spherical wavefront. The raypath and gridded traveltime estimations assume that the local velocity in the area defined by the defined times is constant...
Unknown
Abstract: Automatic Time Picking and Velocity Determination on Full-Waveform Sonic Logs; #90171 (2013)
Lejia Han, Joe Wong, John C. Bancroft, and Robert R. Stewart
Search and Discovery.com
... accurate because we need not assume any knowledge about the raypath segments going through the fluid in the well, the casing, and the mud or cement between...
2013
Abstract: Monitoring Active Steam Injection through Time-lapse Seismic Refraction Surveys; #90174 (2014)
Byron M. Kelly and Don C. Lawton
Search and Discovery.com
... by time differences on the source side rather than the presence of a steam chamber on the receiver leg of a refraction raypath. For instance, changes...
2014
Abstract: Kirchhoff Imaging with Adaptive Greens Functions for Compensation for Dispersion, Attenuation, and Velocity Imprecision; #90187 (2014)
Andrew V. Barrett
Search and Discovery.com
... Partnership, 6-12 May 2013, Calgary, AB, Canada anisotropies in the actual earth, and errors in parameter estimation may yield velocity relationships...
2014
Seismic-While-Drilling: Techniques using the Drill Bit as the Seismic Source, by Bob Hardage, #40411 (2009).
Search and Discovery.com
2009
AVO Modeling of Monochromatic Spherical Waves: Comparison to Band-Limited Waves; #41567 (2015)
Charles Ursenbach, Arnim Haase
Search and Discovery.com
... coefficient for a given geometry. The result is expressed as (1) where θi is the angle of incidence, θ is an integration parameter, Γ is an integration...
2015
3-D seismic Data in Delineating Productive Ismay Algal Mounds in Southern Paradox Basin, Utah, By, R.O. Louden, D.D. Lehman, W.E. Johnson and D.L. Edwards, Search and Discovery Article #40048 (2002)
Search and Discovery.com
2002
Strike Oriented, Swath Seismic and Its Potential Application to Exploration and Development in the Papuan Fold and Thrust Belt
William F. Robinson IV
Papua New Guinea (PNG) Petroleum Convention Proceedings
... velocity media. Seismic energy from the surface travels down and is reflected from the dipping bed. The seismic energy travels along an inclined raypath...
1996
A Time Migration Before Stack
Richard Cooper, Malcolm Hobson
Geological Society of Malaysia (GSM)
.... The raypath diagrams (Fig. 6a and b) demonstrate the results ofDMO and migration before stack for a zero and far offset. The DMO operator will give the nonzero...
1991
3-D Seismic Survey Design as a Foundation for Optimizing Unconventional Play Success
Walt Ritchie
Unconventional Resources Technology Conference (URTEC)
... information on fracture characteristics, a key determinant of reservoir quality, when a full range of azimuths (source-receiver raypath directions...
2013
Anisotropic Depth Migration Applied in an Area of the Colombian Llanos Foothills as a Tool for Understanding the Structure in Depth
Isabel Cristina Florez, Rob Vestrum
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... in the fast direction and rays from the western or cross-dip side of the structure will travel in the slow direction. The least-time raypath will have a longer...
2006
Mitigation of the 3D Cross-Line Acquisition Footprint Using Separated Wavefield Imaging of Dual-Sensor Streamer Seismic Data A First Example from Malaysia
Mazin Farouki, Andrew Long, Richard Jones, Yee Ah Chim, Magdalene Tang, Hui LeGleut, Shaoping Lu, Dan Whitmore, Adam Betteridge
Indonesian Petroleum Association
... raypath Figure 2 - Schematic diagram for various primary reflection and multiple reflection modes in towed streamer seismic data. Any multiple ray path...
2013
Seismic Imaging in Anisotropic Media. or... "A Better Way to Moveout and Migrate Long Offset Data"
Rolf Klotz, Martin Bayly, Sue Downie, Swee Leng
Indonesian Petroleum Association
... the raypath bends as each interface is crossed. The magnitude of the interval velocity difference between layers controls the amount of raybending observed...
2000
Amplitude Versus Offset Gradient Modeling Over a Minnelusa Field
W.E. Johnson
Rocky Mountain Association of Geologists
... a, R(6) is the reflection coefficient at a normal angle of incidence (the vertical raypath in Fig. I), A(@) is the amplitude at the normal angle...
1988
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
... <30 degree) and anisotropic PSDM to flatten far offset gather (angle mute >30 degree). Then some parameter which play an important role to make more...
2018
Seismic Reflection Imaging with Active Sources and Microseismic Events Recorded on Horizontal DAS Cables
David Langton, Dan Kahn, Brian Fuller
Unconventional Resources Technology Conference (URTEC)
... Kirchhoff migration type of an approach in which the velocity field for the downgoing part of the raypath would be determined by travel time...
2019
Optimization of Seismic Acquisition Design Using Ocean Bottom Nodes at 'MHS' Field
M Hanif Syamri, Ruhul Firdaus, Syamsurijal Rasimeng, Agung A. Susanto
Indonesian Petroleum Association
...) acquisition technology. Determination of parameter acquisition was carried out based on previous 2D geological seismic data models. Optimization...
2019
Pre-Stack Imaging: Time or Depth? (Paper 25)
Carl Notfors, Peter Whiting, Geoff Mansfield
Geological Society of Malaysia (GSM)
... of the medium is constant. In that case, the raypaths are straight and simple triangular raypath geometries are often formed. Hyperbolicity is generated through...
2000
Broad bandwidths reveal double the expected sediment depth in the Northern Carnarvon Basin
Jo Firth, Mark Stanley
Petroleum Exploration Society of Australia (PESA)
... for accurate imaging of the deeper structures, since raypath deviation is cumulative and so a modest inaccuracy in the near-surface model can...
2016
2.2 Basement Involved: 2.2.1 Crustal Profiles: COCORP Seismic Traverse Across the Rio Grande Rift
L. D. Brown, S. Kaufman, and J. E. Oliver
AAPG Special Volumes
... structure. The discontinuous nature may be due to lateral Moho complexity, or raypath disruption in the overlying crust. ACKNOWLEDGMENTS The data...
1983