Seismic Consistent Inversion


 Seismic Consistent Inversion (Reflect) is different from other inversion techniques as it does not require well information or horizon information to estimate reflectivity or relative-impedance. The advantage of this process is particularly apparent in areas were well control is sparse and/or the interpretation is complex. Since well data or horizon information is not used in the estimation of reflectivity and relative-impedance, any available well data or horizon data can used to validate the quality of the inversion or integrity of the well data or interpretation. Combined with other attributes this inversion can assist with the understanding of reservoir seal pair geometries. Applicable on post-stack, partial stack and great for broadband data.

Key Objectives: Given a wavelet amplitude and phase spectra, seismic consistent inversion first estimates the reflectivity sequence independent of well control or interpreted horizon data. From the reflectivity, the relative impedance is estimated. With the propagating wavelet removed, the results help validate subtle trap geometries suggested by other techniques. Later as the number of wells increase, the relative impedance volume is an excellent input attribute for statistically derived estimations of acoustic impedance.