What is GeoContainment™ ?
GeoContainment is critical to the success and safety of enhanced oil recovery schemes such as Steam Assisted Gravity Drainage (SAGD), Cyclic Steam Stimulation (CSS), waterflood and solvent-based enhance oil recovery processes. Such processes involve the injection of steam or other fluids into the reservoir at high pressure (and potentially high temperature) in order to mobilize the heavy oil/bitumen. Rock layers directly above these types of reservoirs, known as the caprock, is a non-permeable formation acting as a seal. In order to control the mobility of steam, bitumen, waste or formation fluid, the caprock must display sufficient hydraulic and mechanical integrity to withstand injection pressures in an in-situ production. Evaluation of the underburden seal is also important in some applications to ensure complete GeoContainment. In recent years the number of caprock failures in the oil sands has made subsurface GeoContainment critical for public safety and environmental protection.
Please refer to the Caprock Integrity Study page for an example of how BGES can help.