Published July 2013
Increasing of seismic exploration resolution capacity taking into consideration inelastic adsorption according to VSP survey data
N.Sh. GiyasovThe seldom used method of seismic exploration resolution power rising, consideration of medium inelastic adsorption or factor of quality is reviewed in the article. It is noted, that the definition of adsorption allows applying Q-filtration with the aim of restoring the adsorbed high frequency contents of seismic record and enhancement of visual resolution power either as land seismic exploration data, or as VSP. In order to define Q factor of quality the algorithms two more stable and commonly used inversions were applied: spectral and spectral-iteration methods. The following values of Q quality factor were obtained: ~142155 for the whole VSP interval, ~7585 for the average and ~3338 for low intervals. The average value of effective quality factor Q = 145 was used for restoring of weakened frequencies in seismic exploration time sections and VSP survey Z profile vertical component. The results of Q filtration show significant increase of resolution power, which demonstrates the effective feasibilities of some VSP survey parameters applying in land seismic exploration processing.
