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The AAPG/Datapages Combined Publications Database
Showing 164 Results. Searched 196,121 documents.
Migration Amplitude Recovery using Curvelets
Peyman P. Moghaddam
Search and Discovery.com
... linear system of equations using linear solvers. Examples Figure 1 shows three different curvelets in different locations and angles before and after...
Unknown
Migration Amplitude Recovery using Curvelets
Peyman P. Moghaddam
Search and Discovery.com
... linear system of equations using linear solvers. Examples Figure 1 shows three different curvelets in different locations and angles before and after...
Unknown
Seismic Acquisition Optimization for Exploration in Thrust Belts and Foreland Basins; #42268 (2018)
Pedro Muñoz, Juan Uribe, Nestor Sanabria
Search and Discovery.com
...-Linear Primary-Multiple Separation with Directional Curvelet Frames: Geophysical Journal International, v. 170, p. 781-799. Jiang, T., B. Gong, F. Qiao...
2018
Seismic Diffraction Imaging of Reservoir Fractures with DAS Seismic Data in a Horizontal Well
Brian Fuller
Unconventional Resources Technology Conference (URTEC)
... modeled for three different positions in a constant velocity medium of 10,000 ft per second, at a horizontal DAS cable depth of 8,800 ft...
2022
Abstract: Statics or Statistics?The Near-Surface Revisited; #90211 (2015)
David Henley
Search and Discovery.com
... noises, which often mask reflections, this layer, through its irregular thickness and/or velocity structure also causes timing and phase differences...
2015
Vertical Seismic Profiling--A Measurement that Transfers Geology to Geophysics: Chapter 2
B. A. Hardage
AAPG Special Volumes
..., the objectives of vertical seismic profiling are different from those of velocity surveying, specifically: 1. VSP data are recorded at vertically spaced depth...
1985
Abstract: Seismic Modelling and Monitoring of Carbon Storage in a Shallow Sandstone Formation; #90174 (2014)
Virginia C. Vera and Don C. Lawton
Search and Discovery.com
..., representing the post-injection scenario. The velocity and density values were obtained after applying Gassmann fluid substitution (Figure 2 (b...
2014
Broad bandwidths reveal double the expected sediment depth in the Northern Carnarvon Basin
Jo Firth, Mark Stanley
Petroleum Exploration Society of Australia (PESA)
... the depth that had been imaged previously, see figure 3. The clear imaging of these deep events was enhanced by sophisticated high-resolution velocity model...
2016
Taking Advantage of RTM Surface Offset Gathers for Iterative Salt Modeling and Subsalt Reservoir Image Enhancement
Search and Discovery.com
N/A
Synergism in Formation Evaluation Enhances Detailed Reservoir Description: Reservoir Characterization: Petrophysical Formation Evaluation and Rock Description
Bob A. Hardage, Walter H. Fertl
AAPG Special Volumes
... development efforts where it is difficult to make accurate seismic depth maps due to structural complexity or to anomalous velocity behavior, it can...
1991
The Array Sonic .... A New Technique for Acoustic Measurements
A. James
Indonesian Petroleum Association
... 49, 3, 274-281. Liu, O.Y. 1987. A new method of fracture detection using borehole sonic velocity measurements. Proceedings of the Tenth European...
1989
A New Cement and Casing Evaluation Tool – The CET
M. H. Jennings
Indonesian Petroleum Association
... presentation. Furthermore by using an additional, ninth, transducer to measure the borehole fluid velocity it is possible to calibrate the first echo...
1984
Basic Seismic Processing: Part 7. Geophysical Methods
Peter M. Duncan
AAPG Special Volumes
... width in space, which reduces spatial resolution. As the seismic wavefront travels outward from the source, it not only gets weaker (as a result...
1992
Composite (VS/VP) Ratios in Transversely Isotropic Geology: Possible Aid for Identifying Organic Contamination in Porous Rocks
Alvin K. Benson
Environmental Geosciences (DEG)
... 188 198 Vol. 3 (1996) No. 4. Important mechanical properties of rocks and soils can be calculated from the shear-wave velocity, VS, the compressional...
1996
Abstract: The Benefits of S-waves and Multicomponent Data for Surface Monitoring; #90187 (2014)
en Dando, Kit Chambers, Raquel Velasco, and Stephen Wilson
Search and Discovery.com
... source-array geometry by propagating P and S wavefields through 3D P-wave and S-wave velocity models. To compute the synthetics we use a wavefront...
2014
Abstract: Predictive Seismic Modeling Case History from the Niger Delta, by A. O. Idowu; #90990 (1993).
Search and Discovery.com
1993
Abstract: Toward GPU Acceleration of the Reverse Time Migration Using Temporal Blocking; #91204 (2023)
Long Qu, Hatem Ltaief, Hussain Salim, Thierry Tonellot, David Keyes
Search and Discovery.com
...) for seismic depth imaging in challenging geological settings. Using seismic datasets captured at various source and receiver locations, it solves...
2023
Practical Application of Adaptive Least-Squares Reverse Time Migration (LSRTM) to Advance Field Development and Uncover New Reserves in the Subsalt Provinces
Chong Zeng, Shuqian Dong, Zhaohong Wu, Jean Ji, Darrell Armentrout, Bin Wang
GCAGS Transactions
... to the requirement of seismic velocity in conventional depth migration algorithms. In theory, LSRTM has to assume the velocity model is perfect otherwise...
2016
Seismic Processing Applications on a Personal Computer
Geophysical Service (Malaysia) Sdn. Bhd.
Geological Society of Malaysia (GSM)
... the velocity vs depth relationship for both P-wave and S-wave energy. 60 GEOPHYSICAL SERVICE (M ) Figure 6: SnN. B HD. 2-panel display, upgoing...
1989
Abstract: Separation of Geometric Spreading, Scattering and Intrinsic Attenuation in VSP data; #90187 (2014)
Amin Baharvand Ahmadi and Igor Morozov
Search and Discovery.com
... (blue labels). Table 1: Resulting separated geometric-spreading, scattering and intrinsic-attenuation model* Depth to Velocity -1 -1 -1 Layer v...
2014
Abstract: 3D, Anisotropic Phase Shift Operators; #90171 (2013)
Robert J. Ferguson and Gary F. Margrave
Search and Discovery.com
... is acoustic velocity. Unit normal (2) For numerical wave-propagation in the Fourier domain k 1, k 2, , where k 1 a n d k 2 are the Fourier...
2013
Abstract: 3D, Anisotropic Phase Shift Operators; #90171 (2013)
Robert J. Ferguson and Gary F. Margrave
Search and Discovery.com
... is acoustic velocity. Unit normal (2) For numerical wave-propagation in the Fourier domain k 1, k 2, , where k 1 a n d k 2 are the Fourier...
2013
The effects of seismic anisotropy on mining seismology
Andrew King
Petroleum Exploration Society of Australia (PESA)
... falls. These uses of microseismics require that the seismic events be accurately located, which can only be done using an accurate velocity model...
2019
Using Multi-Focusing 3-D Diffraction Imaging to Predict Fracture Swarms in Unconventional Reservoirs
Marianne Rauch-Davies, Alex Berkovitch, Kostya Deev
Unconventional Resources Technology Conference (URTEC)
... paraxial wavefront: normal incident point wave and normal wave respectively; X and X are the source and receiver offsets for a given X 0 ; R+ and R...
2013
Chapter 3: Preparation of Seismic Data for Stratigraphic Work
Tom Wittick
North Texas Geological Society
... amplitude. The amplitude decays with time due to the spherical spreading of the wavefront. Figure 3-1. Amplitude of a Seismic Trace Notice...
1992