Optimizing the Steam EOR Campaign Case Study

Challenges

High noise levels in onshore seismic data acquisition and processing
Complex multizone development history with SAGD, CSS and shallow gas production
Large elastic property changes at interfaces from effect of steam

Objectives

Large uncertainty in reservoir connectivity
Fluid and pressure distribution in dynamic models unverified with 4D seismic
Integrate seismic quantitative interpretation with the production engineering workflow

Solutions

Facies based 4D inversion reduces side-lobe low frequency artifacts
Improved property imaging, with consistent elastic properties
Valuable new insights into distribution of remaining hydrocarbons and impact of elevated temperatures on rock matrix