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The AAPG/Datapages Combined Publications Database
Showing 34,457 Results. Searched 200,357 documents.
The Effects of Seismic Data Conditioning on Pre-Stack Simultaneous Impedance Inversion
Scott W. Singleton
GCAGS Transactions
... correlation coefficients. Normal Move Out (NMO) Stretch Removal The object of this process is to compensate for the loss of frequency with offset...
2008
Mapping with Two-Dimensional Seismic Data: Part 7. Geophysical Methods
I. R. Gordon
AAPG Special Volumes
... for a given depth, one can calculate a velocity (distance divided by time). Approximate velocities can be calculated using the stacking velocities...
1992
Seismic Migration: Part 7. Geophysical Methods
Ken Larner, David Hale
AAPG Special Volumes
... of reflection time t at any position (x,z) in the subsurface, and V is the seismic wave velocity in the subsurface, a function of both x and z...
1992
Understanding Seismic Amplitudes, by Steve Henry, #40135 (2004).
Search and Discovery.com
2004
Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015)
Sylvestre Charles, David Mitchell, Rob Holt, Jiwu Lin, and John Mathewson
Search and Discovery.com
... interpreted on the prestack time-migrated volume and the upper part of the model was constrained by surface geology (bedrock) maps. The velocity model...
2015
Qualitative and Quantitative Monitoring of Seismic Quality During Data-Processing for Future Seismic Reservoir Characterization Studies (Sisi-Nubi Field, Indonesia)
Rangga A. Brahmantio, Mikhail Baturin, Florent Bertini, Jean-Marie Jourdan
Indonesian Petroleum Association
... Consistency (cross correlation, phase & time-shift dispersions, and stretch), and Spatial Stability (stretch dispersion, lateral amplitude variation...
2011
An Interpreter's Guide to Improvements in Depth Imaging through Model-Based Velocity Estimation and Refinement
Andy Furniss
Petroleum Exploration Society of Australia (PESA)
... ~- --._______ V=1500 m/sec V=1600 m/sec ·- V=1700 m/sec ----...._ V=1800 m/sec Fig. 5- Stacking velocity inversion uses a hyperbolic travel time curve...
1999
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
...Time Depth Conversion of a Prospect With Near-Surface Velocity Anomalies Using Stacking Velocites and PSDM Velocities: A Comparison Tan Boon Hua...
2011
Abstract: How to Improve Location Accuracy When Dealing with Artifacts in Microseismic Event Locations; #90187 (2014)
N. Verkhovtseva
Search and Discovery.com
...; a stacking effect when events form almost a perfect line at a high contrast velocity border; and a sloping effect when events form obvious trends...
2014
Abstract: Statics Preserving Sparse Radon Transform; #90224 (2015)
Nasser Kazemi
Search and Discovery.com
... to apply filtering and remove multiples from the predicted data. It is well understood that multiples after NMO correction with primary events velocity show...
2015
An Interpreter's Guide to Improvements in Depth Imaging Through Model-Based Velocity Estimation and Refinement
Andy Furniss
Indonesian Petroleum Association
... inversion uses actual pre-stack CMP gathers in the time domain to correlate with the modelled traveltime curves whereas stacking velocity inversion...
2000
Abstract: Near-surface S-wave Velocity from an up Hole Survey using Explosive Sources; #90187 (2014)
Saul E. Guevara, Gary F. Margrave, and William M. Agudelo
Search and Discovery.com
... events. However, the most shallow layer, in this case less than 15 m deep, produces a larger effect on the time delay because of its lower velocity...
2014
Diving wave tomography: Velocity modelling using first arrival traveltime
Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu
Geological Society of Malaysia (GSM)
... the relationship between velocity with time and space, the output from tomography plays a crucial role to align data between time and depth domain...
2022
Geophysical Interpretation of Pinedale Field
Sally G. Zinke
AAPG Special Volumes
... mean scaling mute to 4200 ms3-D DMO, Radon domain Post NMO 75% MuteDMO Velocity AnalysisRadon noise rejectionDMO Velocity Analysis Time Variant...
2014
Prospect De-Risking Through a Fully Integrated Approach from Seismic Processing to Geology Interpretation
Francois Baillard, Rajat Rathore, Zhengmin Zhang, David Gold, Safrin Arbi, Mat Hardenberg
Indonesian Petroleum Association
... will not have any effect to the cross correlation between seismic and synthetics. For the time-depth conversion, a ‘stretch and squeeze’ is applied...
2017
Abstract: Azimuthal Residual Velocity Analysis in Offset Vector for WAZ Imaging, by Didier Lecerf, Jean-Luc Boelle, Amhed Belmokhtar, and Abdeljebbar Ladmek; #90105 (2010)
Search and Discovery.com
2010
3-D AVO Analysis and Modeling Applied to Fracture Detection in Coalbed Methane Reservoirs
Antonio C.B. Ramos, T.L. Davis
Rocky Mountain Association of Geologists
.... This effect is less important for S-wave velocity, which contributes to lower VpNs ratio in gas saturated condition. Confining pressure at the level...
1997
Understanding Azimuthal P-Wave Anisotropy through Multiple Vendor and Attribute Comparisons
Jamie Rich, Breanne Kennedy, Marianne Rauch-Davies
Unconventional Resources Technology Conference (URTEC)
... analysis is the effect of curved interfaces (de Bazeialre 1988). Based on simple ray tracing over an anticline, observed NMO and the corresponding Vnmo...
2016
Abstract: AVAZ Inversion for Fracture Orientation and Intensity: a Physical Modeling Study; #90187 (2014)
Faranak Mahmoudian and Gary F. Margrave
Search and Discovery.com
... (Crampin, 1981). Using P-wave NMO velocity variation with azimuth (VVAZ), fracture orientation is considered to be in the direction of the fast P-wave...
2014
First-Arrival Traveltime Inversion in the CMP Domain: Method and Application
Search and Discovery.com
... or turning wave arrival. Here, the assumption of turning wave was used to transform time-offset first-arrival into velocity-depth model. Figure 1 shows...
2013
Abstract: White Noise Suppression in the Time Domain Part II; #90174 (2014)
Patrick Butler
Search and Discovery.com
... noise) and NMO stretch to consider. This has been analyzed by applying the algorithm and looking at the phase spectra of a number of events...
2014
How to Make Velocity Corrections
John W. Daly
AAPG Bulletin
...How to Make Velocity Corrections John W. Daly 1944 615 628 28 5. (May) The fundamental assumptions in regard to velocity distribution and the effect...
1944
Using Multiazimuth Seismic Data for Anisotropy Estimation in an Unconventional Reservoir
Surabhi Mishra
Petroleum Exploration Society of Australia (PESA)
...) Curvature slice 3 After time structure maps for horizons of interest are constructed, then the 3D stacking velocity cubes are sliced at the horizon time...
2018
Chapter 10-part 3: 3-D Depth Image Interpretation
William L. Abriel, Joseph P. Stefani, Robert D. Shank, David C. Bartel
AAPG Special Volumes
... more accurate than time imaging. As a result, depth imaging is fast becoming the process of choice in areas of high velocity complexity. But along...
2011
3-D Tomographic Amplitude Inversion for Compensating Transmission Losses in the Overburden
Barry Hung, Kefeng Xin, Sergey Birdus, James Sun
Indonesian Petroleum Association
... about the amplitudes of reflections from a horizon but uses the amplitudes estimated within short time windows from NMO-corrected data to solve...
2009