| abstract |
A method for controlling the production of formation fines during the production of heavy oils from a sandstone formation. Hydraulic fracturing is conducted in an interval of the formation using a viscous gel fracturing fluid having a proppant therein. The proppant is sized based on the particle size distribution of the formation fines so as to restrict formation fines movement into the propped fracture. Thereafter, intermittent steam injection is conducted in the formation's productive interval. Hydrocarbon production from the formation is controlled so as to allow formation fines build-up on the fracture face thereby improving the filtration of fines from the heavy oil. After removing a desired amount of hydrocarbonaceous fluids from this productive interval, it is mechanically isolated. Thereafter, the steps are repeated in another productive interval. |