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 18,544 Results. Searched 195,364 documents.
Abstract: Seismic Imaging of Imbricate Structures in Mountainous Area: Case Studies; #90211 (2015)
Nanxun Dai, Oz Yilmaz, Weizhong Wang, and Jie Zhang
Search and Discovery.com
... and the substratum model is estimated by half-space velocity analysis. (4) The subsurface image is obtained by wave equation based prestack depth...
2015
ABSTRACT: Velocity-Depth Model Estimation for a Subsalt Target from the Southern Gas Basin of the North Sea, by Oz Yilmaz, Jeff Rutledge, Ottar Sandvin, and Bob Godfrey; #91019 (1996)
Search and Discovery.com
1996
Migration Velocity Analysis by Migration of Velocity Spectra
Craig J. Beasley, Rolf Klotz
Southeast Asia Petroleum Exploration Society (SEAPEX)
...Migration Velocity Analysis by Migration of Velocity Spectra Craig J. Beasley, Rolf Klotz 1992 29 32 Chambers, R., Jakubowicz, H., Larner, K...
1992
Application of Traveltime Tomography and Kirchhoff Migration Methods to Improve the Seismic Cross-Section Resolution on 2D Land Seismic Data
Harmita Lestari, Nur Ayu Anas, Muh. Resky Ariansyah, Sabrianto Aswad, Heri Winarto
Indonesian Petroleum Association
... you can use dix conversion and constant half-space velocity analysis using VDcube. But what is used in these studies is dix conversion using...
2019
The Attenuation Effects of Surface-Wave Propagations on Rockmass Using SASW Method
Suharsono, Abdul Rahim Samsudin
Geological Society of Malaysia (GSM)
... at the surface of an elastic half space, the body waves can travel within the interior or along the surface of the ground and may be compression waves (P-waves...
2003
Acoustic modelling with elastic AVA effects
Robin P. Fletcher, James Hobro, James Rickett
International Meeting for Applied Geoscience and Energy (IMAGE)
...) 1 yes no yes 1500 750 1000 2 no yes no 1500 1000 1000 3 yes yes yes 2000 1600 1000 4 no no yes 1500 750 2000 Table 1. Four elastic half-space models...
2023
A Time Migration Before Stack
Richard Cooper, Malcolm Hobson
Geological Society of Malaysia (GSM)
... .. - / , a!_ .. - I II ...... I Ii J ...... / ....... ..... 2.U!IIII I /,1 Figure 4: Velocity analysis on structural DMO gathers CONSTANT...
1991
Abstract: AVO Effects and Velocity Analysis; #90211 (2015)
Emil Blias
Search and Discovery.com
... of coherence measure. Semblance velocity analysis is based on the assumption of constant amplitude and does not take into account amplitude variations...
2015
Abstract: Migration Velocity Analysis of Incomplete Data Using LSPSM CIGs; #90174 (2014)
Abdolnaser Yousefzadeh, John C. Bancroft, and Gary F. Margrave
Search and Discovery.com
...n be used to update the velocity model used for imaging. Migration velocity analysis can be implemented by performing constant velocity migration seve...
2014
AAPG Memoir 76, Chapter 18: Velocity Estimation for Pore-Pressure Prediction
David W. Bell
AAPG Special Volumes
.... Alkhalifah, T., and I. Tsvankin, 1995, Velocity analysis for tranversely isotropic media: Geophysics, v. 60, p. 1550– 1566. Bates, R. L., and J. Jackson...
2001
Reservoir Monitoring Technology Part V: Linking Seismic Response to Geomechanics
Tron Kristiansen, Olav Barkved, Martin Landrø, Lasse Amundsen
GEO ExPro Magazine
... Method Converted to Seismic Changes Using Rock Physics The main simplifying assumption for this method is a uniform elastic half-space. A number...
2009
One-Dimensional Prestack Seismic Inversion with Very Fast Simulated Annealing using Edge-Preserving-Smoothing Filter; #41576 (2015)
Somanath Misra, Mauricio Sacchi
Search and Discovery.com
... considered here comprised 30 layers (29 micro-layers over a half-space) of constant two-way travel time. The model space is bounded within ±15...
2015
Visualizing AVAZ Parameter Estimates and Uncertainty, #41571 (2015).
Jon Downton, Dave Gray, Torre Zuk
Search and Discovery.com
... due to the geology versus those arising from the noise and inadequate data acquisition. Method For the case of an isotropic half-space over an HTI...
2015
The Application of Velocities and Models to Seismic Interpretation
G. Jarrota
Indonesian Petroleum Association
... that can be used for the study of seismic velocities, and their applications to seismic interpretation. The velocity spectrum or velocity analysis (Fig...
1977
High Resolution Pore Pressure Prediction Using AVO Inversion
Yongyi Li
Search and Discovery.com
... in over pressured zones. Traditionally, the P-wave velocity obtained through stacking velocity analysis or reflection tomographic inversion is used...
Unknown
High Resolution Pore Pressure Prediction Using AVO Inversion
Yongyi Li
Search and Discovery.com
... in over pressured zones. Traditionally, the P-wave velocity obtained through stacking velocity analysis or reflection tomographic inversion is used...
Unknown
Geoscience Integration and Interpretive Model Building to Overcome Seismic Imaging Problems in Foothills Environments; #41547 (2015)
Rob Vestrum
Search and Discovery.com
... constant-velocity time migrations to an output analysis grid. For each constant-velocity migration, we generate two types of output: (1) full migrated...
2015
A Robust Gradient for Long Wavelength FWI Updates
Jaime Ramos-Martinez, Sean Crawley, Kathy Zou, Alejandro Valenciano, Lingyun Qiu, Nizar Chemingui, Andrew Long
Petroleum Exploration Society of Australia (PESA)
... model consisting of a single layer overlying a homogeneous half-space. 2 Douma et al. (2010) alternatively presented velocity and impedance...
2016
Abstract: An Analysis of the Benefits of 3D Pre-Stack Time Migration (Paper 11)
Peter Whiting
Geological Society of Malaysia (GSM)
... imaging consists of NMO, DMO, stack and zero-offset time migration. Initially, NMO velocities are only approximate while constant velocity (or v(z) DMO...
1996
ABSTRACT: First Arrival Tomography Using Depth-Varying Velocity Gradients; #90113 (2010)
Hui Liu and Hua-Wei Zhou
Search and Discovery.com
... or velocity perturbation is constant within each cell or layer. When the velocity field varies continuously, traditional cell or layer tomography methods...
2009
-- no title --
user
Search and Discovery.com
... into the interpretation of preliminary depth migrated seismic data. We used the near-surface velocity models derived from refraction statics analysis...
Unknown
-- no title --
user
Search and Discovery.com
... into the interpretation of preliminary depth migrated seismic data. We used the near-surface velocity models derived from refraction statics analysis...
Unknown
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
... that the velocity fields are adjusted to the well velocities by a layer dependant constant factor. This approach allows getting an idea about the reliability...
2011
Influence of Geological Factors on Longitudinal Seismic Velocities
B. B. Weatherby , L. Y. Faust
AAPG Bulletin
... have made an analysis of the velocity measurements available to them in the files of the Geophysical Research Corporation. The data used comprise...
1935