Well-ties form the basis of seismic interpretation and also allow a quantitative analysis of the seismic phase, frequency and other attributes. Good well-ties are essential for quantitative seismic workflows such as inversion and reservoir characterisation. Conventional Wavelet estimation is performed using the frequency domain least squares method (White, 1980) along with QC measures on PEP maps, delay maps and the various statistics produced from this analysis to determine the well tie quality.
RokDoc Advanced WellTie: A new advanced well tie module that greatly improves the seismic to well calibration process.
In this video presentation, Ehsan discusses a quantitative approach to do well tie and to QC the outcome. This covers the basic principles all the way to the latest developments for broadband seismic data. He shows some synthetic and real data examples and highlights the impact of time lag, phase, bandwidth and broadband wavelets for broadband seismic.
Broadband re-processed seismic data from the NW Shelf of Australia were inverted using a standard approach to wavelet estimation. The inversion method Read More
De-risking via objective quantitative interpretation (QI) is an essential part of successful hydrocarbon exploration and appraisal. Given suitable sub Read More
The seismic industry is increasingly acquiring broadband data in order to reap the benefits of extra low- and high-frequency contents. At the low end, Read More