Shapes spectra of seismic data to be consistent with the Earth's reflectivity
The ARK CLS Seismic Spectral Blueing plugin is a technique that shapes the seismic spectrum to optimise the vertical resolution without boosting noise to an unacceptable level. The spectrum is reshaped to 'match' observed behaviour of reflectivity data obtained from wells. In a global sense, the well-reflectivity spectrum shows that the higher the frequency the higher the amplitude. We refer to this as the spectrum being blued.
Examples
Seismic spectra before and after seismic spectral blueing. Note the boost in higher frequencies.
Seismic data before (left) and after (right) spectral blueing. Note the small scale faulting that appears after spectral blueing.