Conventional
VERTICAL EFFECTIVE STRESS
- Feasibility study
- Well calibrated Vertical Effective Stress (VES) derived from seismic velocity
- High-resolution velocity estimation, calibrated at blind wells and derived VES
FEASIBILITY STUDY
- Well log studies (AI, Poisson’s ratio and TOC analysis)
- Well-seismic tie
- Gather and full-stack synthetic
- Comparison with the true data at the zone of interest
- Data quality assessment
- Quality enhancement by gather conditioning
POST-STACK INVERSION
- AI to TOC classification
- Blind well test
PRE-STACK SEISMIC INVERSION
- AI, Poisson’s ratio and TOC relationship
- TOC Classification
- Blind well test
FEASIBILITY STUDY
- Well log studies (AI, Vp/Vs, GI, Porosity, NTG, VShale, Sw studies)
- Well-seismic tie
- Gather and full-stack synthetic (Zoeppritz and Elastic wave modeling)
- Comparison with the true data at the zone of interest
- Data quality assessment
- Quality enhancement by gather conditioning
BAND-LIMITED INVERSION
- Fluid volume and lithology volume
- Seismic net pay map
POST-STACK INVERSION
- Sand/ carbonate probability volume
- Predicted porosity volume
PRE-STACK INVERSION
- AVO analysis in intercept and gradient domain
- Inversion for reservoir parameters P-impedance, S-impedance, and Density
- Fluid volume and lithology volume
- Litho-fraction (for example, VShale) volume
- Probabilistic litho-facies classification
MULTI-ATTRIBUTE REGRESSION AND NEURAL-NETWORK PREDICTION
- Water saturation prediction volume
- Porosity prediction volume
- Lithology prediction volume