Integrated Modelling to Assess SAGD Hazards

• Significant operational and safety risks associated with steam assisted gravity drainage (SAGD), onshore Alberta
• The impact of pressure, P, build-up in shales was explored through application of a thermo-poroelastic rock physics model
• Model indicated pressure to have larger footprint that temperature, T, with dependency on permeability, K
• Robust interpretation of PP and PS time strains based on time lapse models and 4D seismic data for P, T and K variations
• Delivered model to reduce risk and improve understanding of borehole stability and integrity in complex production setting

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