5. Solvent Area

Solvent processes such as SC-SAGD involves alternating injections of steam cycles followed by hydrocarbon solvents. Light solvent will primarily be produced from gas from the casing annulus, while heavy solvent, or Diluent, will be produced with the emulsion from the free water knock out and treater.

The solvents are pre-heated before injecting into steam, using a large hot oil bath line heater running at 220°C. A three-stage solvent recovery compressor will then use a combination of pressure and cooling to recover diluent and solvents from the produced Bitumen. Recovered solvent is re-injected into the wells through the steam line or goes into the recovered diluent vessel.