Updated June 14, 2021 9:43 AM (GMT+5:30)

Getting Started

Project Documentation

Tasks & Progress

August 1, 2021

Ref : https://www.youtube.com/watch?v=anOt5Zw5e_E

Well seismic tie QC :

• Measures of goodness of fit
  • Cross correlation coefficient
  • Proportion of trace energy predicted by synthetic
  • RMSE
• Measures of accuracy
  • Normalised MSE in matched synthetic
  • Amplitude and phase error as a function of frequency
  • Constant Phase error ( phase error at the centre freq )

Key factors that affect well seismic ties

• Quantifying uncertainty helps focus attention on what works and what doesn't, it is the key to better ties.
  • Seismic and well log quality
  • Accurate seismic imaging and accurate log calibration
  • Bandwidth
  • Well log duration
  • Accuracy and goodness of fit

Metrics for Broadband well tie ( Naeini et al. 2016 )

• Parametric constant phase
• Frequency domain least squares
• Bayesian time domain least squares