Spectral Decomposition For More Accurate Image When seismic data is decomposed into individual frequency components, as is done in spectral decomposition, some subsurface features, such as channels, can be distinguished at certain frequency components. There are several ways of performing spectral decomposition of seismic data in terms of the mathematical...
Attribute Analysis of Mid-Continent Washes, AAPG EXplorer, April 2015 By Ryan Fairfied & Renjun Wen
Attribute Analysis of Mid-Continent Washes The Anadarko Basin granite wash play has been considered difficult to interpret both geologically and geophysically. Consequently, the application of seismic attribute analysis to mid-continent washes has not been widely published. SM Energy’s mid-continent granite wash asset covered a portion of a prolific Missourian age...
Geomodeling AttributeStudio™ 7.4 Release
Real Seismic Wavelet Transform: A Breakthrough in Spectral Decomposition for Reservoir Characterization Geomodeling Technology Corp. has released AttributeStudio™ 7.4. This release includes a new Spectral Decomposition Algorithm, Real Seismic Wavelet Transform (RSWT). RSWT uses the extracted seismic wavelet rather than the mathematic wavelet used in Continuous Wavelet Transform (CWT). The extracted...
New Spectral Decomposition Method in AttributeStudio featured in AAPG Explorer
A new method for Spectral Decomposition is featured in an article by its inventor, Geomodeling's Senior Geophysicist Rongfeng Zhang, in the Geophysical Corner of AAPG Explorer. Rongfeng's article, "Effective Ways to Eliminate Side-Lobe Effects" describes some of the issues associated with Spectral Decomposition that can result in self-related events on...
Spectral Decomposition Article from Geomodeling Featured in AAPG Explorer
Spectral Decomposition aids in Seimic Interpretation An article by Rongfeng Zhang, one of our expert geophysicists here at Geomodeling, is featured in the Geophysical Corner of the AAPG Explorer this month. Rongfeng's article, "Finding the Value in Spectral Decomposition," reviews the mechanics of Spectral Decomposition and how it aids...
AVAZ Vector Visualization
AttributeStudio™ from Geomodeling includes breakthrough features for fractured reservoir characterization using visualization and analysis of AVAZ, VVAZ, and other directional attributes. Anisotropic gradients and velocity differences captured by directional seismic attributes such as AVAZ and VVAZ can be correlated to fracture density and orientation in unconventional reservoirs. AttributeStudio’s Vector Visualization...
AttributeStudio Unconventional
AttributeStudio Unconventional from Geomodeling is a comprehensive suite of advanced tools for reservoir characterization of unconventional, fractured shale and carbonate plays. AttributeStudio Unconventional enables you to correlate seismic, microseismic, well log, and engineering data from hydraulic fractures into an integrated interpretation of fractured formations. MICROSEISMIC DATA INTERPRETATION Using AttributeStudio Unconventional,...
Interactive Seismic Attribute Analysis for Reservoir Characterization
Being “interactive” is not only important for traditional seismic interpretation, which maps subsurface structural and stratigraphic features; it should also be an essential feature in the seismic attribute analysis for reservoir characterization and prediction. In this paper we present interactive workflows that integrate major steps in seismic attribute analysis, namely...
Combining Seismic Imaging with Geologic Process-Guided Modelling
Improve Channel Reservoir Characterization By Combining Seismic Imaging with Geologic Process Accurate identification and portrayal of a channel system is rarely easy. Exploiting it is even harder. The depositional processes and crosscutting relationships do not leave behind simple linear features with welldefined boundaries. Conventional examination of poststack seismic reflections leaves...
Enhancing Reservoir Visualization with Spectral Decomposition
Spectral decomposition adds value to visualization and interpretation workflows by revealing details normally overlooked in full bandwidth seismic displays. In Alberta's Blackfoot field, the oil- and gas-producing Lower Cretaceous Glauconite Member contains shales and quartz sands of lacustrian and channel origin. The hydrocarbon reservoirs typically occur where the porous sands...