Spectral decomposition

Spectral decomposition allows utilization of the discrete frequency components
of the seismic bandwidth to interpret and understand the subtle details of subsurface stratigraphy. Besides the traditional Fourier transform, Arcis offers the CWT (Continuous Wavelet Transform), MPD (Matching Pursuit Decomposition) and EPD (Exponential Pursuit Decomposition) methods for transformation of data to frequency domain. The latter two techniques offer more accurate analysis.

       
Horizon slice from seismic volume                Equivalent horizon slice from merged frequency volume (with 20 Hz, 30 Hz, and 40 Hz) and using RGB with seismic

 

Seismic facies classification

Seismic waveforms in the board zone of interest are categorized and related to different depositional facies.  Arcis offers both unsupervised (statistical) as well as neural network (deterministic) methods for arriving at meaningful and convincing facies analysis.

   
Horizon slice through the seismic volume and passing through the Doig sandstone Waveform classification map generated by hierarchichal unconstrained waveform classification.  Notice the higher level of facies detail that is seen on this display compared with the seismic amplitude alone, within the sandstone boundary drawn in black.