Seismic to Well Ties

To calibrate seismic data obtained in the time domain to well data obtained in the depth domain, a detailed time-depth analysis followed by wavelet estimation must be performed. This also requires an accurate evaluation of the angle dependent reflectivity response for the extraction of a reliable wavelet.

Our suite of AVO modelling and wavelet estimation tools are designed for varying degrees of well control and data quality. With these tools, unnecessary assumptions can be discarded and allows for an unbiased and more reliable wavelet estimation.

Qeye's Wavelet Estimation Techniques

A reliable wavelet estimation is essential to ensure optimal seismic inversion results. Qeye Labs has developed an advanced suite of wavelet estimation tools based on the level of well control.

Least squares wavelet (lsq):

• optimal least squares wavelet
• finite length
• no constraints on amplitude or phase
• valid for good well control

Blackman – Tukey wavelet (B-T):

• optimal smooth least squares wavelet
• infinite length
• no constraints on amplitude or phase
• suitable for broadband
• valid for good to medium well control

Spectral wavelet (spc):

• estimated using spectral analysis
• least squares wavelet
• constant phase and delay are from well reflectivity and seismic
• valid for limited well control