Alberta oil sands systems guide

Cyclic steam stimulation in oil sands recovery

Cyclic steam stimulation injects steam, allows heat to soak into the reservoir and then produces mobilized bitumen through the well system.

CSSIn situ

Editorial review: August 11, 2026 · Colin T. Ashcombe

Process role

Injection and production occur in repeated cycles.

How the system fits together

Produced water can be separated, treated and returned to steam generation.

Environmental and reclamation context

Like other thermal methods, CSS avoids open-pit mining but has energy, emissions, water-treatment and surface-infrastructure impacts.

What to keep in mind

Reservoir geology determines where the method is technically suitable.

High-level industrial education only. Oil sands mines, thermal wells, extraction plants, upgraders and tailings facilities are hazardous regulated operations; this site does not provide operating setpoints, chemical recipes or equipment procedures.