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The AAPG/Datapages Combined Publications Database
Showing 193 Results. Searched 200,293 documents.
A fast sweeping method based on coordinate transformation for eikonal equation on unstructured triangular meshes
Xin Chen, Danping Cao, Xin Fu
International Meeting for Applied Geoscience and Energy (IMAGE)
... is from within the current triangle, i.e., the vertical line from node C to the wavefront should fall inside the triangle. As shown in Figure 2a, when...
2024
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
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
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
Taking Advantage of RTM Surface Offset Gathers for Iterative Salt Modeling and Subsalt Reservoir Image Enhancement
Search and Discovery.com
N/A
3D anisotropic seismic simulation for fracture prediction in Sichuans Wufeng shale gas reservoirs
Xiang Li, Ziduo Hu, Chunhui Xie, Yancan Tian, Wei Liu, Xinyu Fang, Gang Yao
International Meeting for Applied Geoscience and Energy (IMAGE)
... vertically through the source point and the depth slice of the target layer, showcasing P-wave velocity, density, and anisotropic parameters...
2024
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
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
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
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
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
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
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
Preparation of Seismic Data For Stratigraphic Work
Abilene Geological Society
... decays with time due to the spherical spreading of the wavefront. Figure 1. Amplitude of a Seismic Trace Notice that there are two components...
1993
Persistent Microseismic Monitoring Using Robust Permanent SADAR Arrays
Kevin D. Hutchenson, Jason Jennings, Elige B. Grant, Derek Quigley, Jonathan Yelton, Paul A. Nyffenegger
Carbon Capture, Utilization and Storage (CCUS)
... at Carbon Management Canada’s Field Research Station (FRS) proving ground between 9m-19m depth to demonstrate passive and activesource seismic...
2025
Impact of an Integrated Seismic Data Processing Approach: A Case Study in Central Sumatra
Mars E. Semaan, Eddy Murhantoro, Maryanto, Achmad Bermawi, Budi Subianto, Hari Santoso
Indonesian Petroleum Association
... velocities and their relationships (Poisson's ratio). The resulting P-wave velocity can be used to perform time-to-depth conversion and to predict target...
1992