Steam Assisted Gravity Drainage (SAGD)
SAGD is growing increasingly popular for thermal enhanced oil recovery in the oilsands of Alberta. The SAGD process requires two horizontal wells to be drilled with one approximately 5 meters above the other. The top well or injection well continuously injects low pressure steam to heat the bitumen or heavy oil, heat reduces the oil viscosity which allows the oil to mobilize and flow to the bottom well were it is produced to surface along with the condensed water. The water is then separated from the oil, treated and reused to create additional steam.
The continuous steam injection is designed to create a steam chamber that grows both vertically and horizontally in the reservoir.
The SAGD Advantage:
- High recovery rates (>50%)
- Continuous production
- High daily oil rates
- Applicable to homogeneous heavy oil reservoirs
Regent's Value
- Tremendous sand control knowledge
- Steam Distribution
- Reservoir Analysis
- Continuous Innovation