Technical Information
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Developing Innovative Solutions
and Leading Technology . . .
Since 1984, Vector Seismic has been developing leading geophysical technology for the world of exploration. Our reputation for solving the most complex 2D/3D seismic images has come through our continual innovation, research and development.
The development and implementation of: 3D Radon DMO, 3D Noise and Multiple Elimination, 3D Source Noise Reduction, 3D Residual Statics, 3D PSPI Migration, and 3D Prestack Time Migration are examples of our commitment to the best technology. Many of these technical papers and developments have been presented over the years at the SEG International Exposition and research seminars.
We will remain on the cutting edge into the future . . . .
Vector High Fidelity (VHF) – High Frequency Enhancement and Noise Attenuation
VHF is a revolutionary new tool that has been proven effective in reducing drilling risk in virtually every petroleum province in the world. Based on important breakthroughs in seismic noise reduction and signal extraction, VHF has the unprecedented ability to simultaneously reduce noise and significantly enhance the natural bandwidth of virtually any seismic survey. By fully exploiting the dynamic range of modern seismic data and effectively and reliably removing more noise than any other product in the geophysical toolbox, VHF exposes stratigraphic detail previously buried in the seismic image. Many of Vector's clients are using post-stack 2D and 3D VHF on their existing seismic database to identify overlooked prospects and to help explain recent drilling history. In many cases, full reprocessing is not required to succeed in these objectives. If you have tried other high frequency algorithms and methods and come up short, it is time to try Vector High Fidelity (VHF).
Features
- Phase Stable
- Performs Well on All Datasets
- Maximizes Resolution
- Improves Fault Definition
- Interpretable Results
- Ties Geology
- Pre-Stack and Post-Stack Applications Available
Iterative Velocity Toolbox (IVT) – Beyond Interpolation
No matter how densely velocity control is picked on 2D and 3D seismic data, there is always the problem of error introduced by interpolation. A fundamental drawback of traditional velocity analysis and normal moveout correction has been the fact that crucial velocity information is constrained by the data at velocity control points only. IVT was designed to solve this problem by iteratively focusing the 2nd and higher-order residual normal moveout to produce a complete velocity field.
IVT produces optimally-corrected gathers and sample-by-sample, CDP-by-CDP RMS and interval velocity fields.
IVT can also determine eta, the 4th-order NMO coefficient, and extract and correct anisotropy effects.
Features
- Produces an Accurate Velocity for Every Sample
- Greatly Reduces Cycle Time
- Sharpens the Seismic Image for Subtle Target Anomalies
- Extracts Eta/4th-Order NMO
- Generally Refines and Improves CDP Stack Results
- Important Pre-Conditioning Tool for Gather Interpretation
Azimuthal Denoise (AZDN) – True Amplitude, True Azimuth 3D Noise Cancellation
Early in the 3D seismic revolution, Vector realized the need to attenuate organized source noise and at the same time recognized the difficulty of implementing noise-discriminating filters that would not only preserve amplitude but also be effective in non-uniformly-sampled domains such as azimuth. In response to this challenge, Vector has specifically engineered AZDN to attack seismic noise in azimuth domain.
A terrific new tool to complement and enhance the power of 3D stacking, AZDN also eliminates the need for summation, partial stacking, coherency, or other low-fidelity 3D pre-conditioning processes commonly-used to assist 3D auto-picking, processes which are known to compromise subtle velocity indicators of anisotropy and other important detail carried in the unsummed 3D traces.
For true amplitude, true azimuth, and full waveform integrity 3D pre-stack noise cancellation, AZDN is the clear choice.
Features
- Accurately Preserves Critical Azimuthal Information
- Important Pre-Conditioning for Gather Interpretation
- Improves Depth Velocity Analysis and Depth Imaging
- Effective on Ground-Roll and Air Noise
- Computationally-Efficient Way to Improve Conventional CDP Stacking
- Better Retention and Visibility of Near-Trace Data
- Exposes Far-Offset Signal without Distortion
Pre-Stack Azimuthal Time Migration (PreSATM)
With the recent interest in azimuthal anisotropy and fracture detection from seismic data, Vector Seismic recognized that the only way to eliminate the inherent ambiguity between dip and azimuthal anisotropy was to develop a method of full pre-stack 3D time migration that did not compromise the valuable azimuthal attribute. This was a challenge that Vector, one of the industry leaders in processing seismic data in azimuth domain, could not ignore. The result is PreSATM, yet another innovative Vector proprietary algorithm, and a crucial piece of the puzzle for explorationists who require properly-imaged gathers in preparation for anisotropy analysis.
PreSATM is a sophisticated 3D pre-stack time migration algorithm that provides high-integrity subsurface imaging and razor-sharp focusing of fault surfaces without sacrificing azimuthal detail.
Now there is PreSATM—the right tool for full 3D pre-stack time migration in preparation for anisotropic analysis.
Features
- Accurately Preserves Critical Azimuthal Information
- Important Pre-Conditioning for Gather Interpretation and Extractions
- A Breakthrough for Proper Pre-Conditioning for Anisotropy Analysis
- A Versatile Performer on All Types of Data