Technical Papers
Improving Recovery From Partially Depleted Reservoirs after Cyclic Steam Stimulation (CSS) Operations
High Pressure Cyclic Steam Stimulation (HP CSS) with both horizontal and vertical wells has been applied successfully to produce bitumen from the Clearwater Formation at CNRL’s Primrose and Wolf Lake fields in the Cold Lake area of east central Alberta, Canada. The ultimate bitumen recovery from only the CSS process is relatively low (< 30 % of OBIP) in the Primrose and Wolf Lake areas. Various follow-up processes after CSS have been tested in the field in an attempt to achieve additional bitumen recovery.
Authors: Qi Jiang, Daryl Youk
Source: Presented at the World Heavy Oil Congress, 2006