Fusion has developed a unique approach to spectral decomposition that has proven itself to be superior to all other available techniques including Fast Fourier Transforms (FFT), Discrete Fourier Transforms (DFT) and Maximum Entropy Method (MEM) methods. Fusion´s proprietary method is an instantaneous spectral attribute which was orignally trademarked under the name InSpect™. Fusion developed InSpect™ under a research grant from the Gas Technology Institute (GTI), and offers this technology under an exclusive license from GTI. Additional research and development led to a second major breakthrough, resulting in the release of an even better algorithm called ExSpect™. The ExSpect™ algorithm is a significant improvement over all previous methods, and is now being offered both as a service and as a supplemental module to the SpecMAN™ spectral analysis toolkit.

 

A comparison of the ExSpect™ method with the InSpect™ method and L1-Norm inversion method for spectral decomposition. Note the much higher quality and fidelity of the ExSpect™ time versus frequency display, and how close the ExSpect™ result compares to the true spectrum of the synthetic trace on the left (in black).






 






 

     Seismic iso-frequency sections for a direct hydrocarbon indicator generated using Fusion’s spectral decomposition process. Panels are for 10 Hz, 20 Hz, 30 Hz, 40 Hz, 50 Hz and 60 Hz.

 


 

     Seismic iso-frequency sections showing improved resolution of thin pay (left side) at 35 Hz and identification of internal barriers in the reservoir between the two wells (center of slide).

 


 

     Seismic iso-frequency horizon slices showing improved delineation of reservoir barriers between the two wells shown in the figure above, and identifying the thin reservoir to the south of the wells. The black contour is the structural closure for the reservoir.