Oil sands extraction and processing guides
Canada/Alberta-focused guides to mining, in situ recovery, bitumen separation, upgrading, utilities, environmental monitoring and reclamation.
What Canada’s oil sands are
Oil sands are deposits of bitumen mixed with sand, clay, water and other material, concentrated primarily in Alberta.
Surface mining vs in situ recovery
Shallow deposits can be mined while deeper bitumen is generally recovered in place using wells and thermal or other methods.
The oil sands project lifecycle
Oil sands projects move through resource evaluation, approval, construction, operation, progressive reclamation, closure and post-closure monitoring.
How surface mining oil sands works
Mineable oil sands are excavated, transported and processed so bitumen can be separated from mineral material.
Soil salvage before oil sands mining
Reclamation success depends partly on what happens before excavation begins.
Material handling in oil sands mining
Mining operations use large shovels, trucks, crushers and slurry transport systems to move very high volumes of oil sand.
Hydrotransport in oil sands mining
Hydrotransport moves conditioned oil sand as a water-based slurry toward extraction and begins physical conditioning of the ore.
How bitumen is separated from mined oil sands
Water-based extraction separates bitumen-rich froth from much of the sand and clay in mined oil sands.
Bitumen froth treatment
Froth treatment reduces water and mineral solids in recovered bitumen before transportation or upgrading.
How oil sands mining creates tailings
After bitumen recovery, large volumes of sand, fine clay, water and residual bitumen remain as tailings.
How Alberta regulates fluid tailings
Alberta’s Tailings Management Framework and AER Directive 085 require operators to manage fluid tailings toward approved targets and reclamation readiness.
In-pit tailings and mined-out pits
Some mine plans use completed pits as locations for tailings deposits and future reclaimed landforms.
How SAGD works at a system level
Steam-Assisted Gravity Drainage uses paired horizontal wells and steam to heat deep bitumen so it can flow toward a producing well.
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.
In situ well pads and gathering systems
In situ projects concentrate multiple wells on pads connected by pipelines, roads, power and central facilities.
The water and steam cycle in in situ oil sands
Thermal recovery depends on a loop that treats make-up and produced water, generates steam and recovers produced fluids.
Solvent-assisted in situ recovery concepts
Some technologies add hydrocarbon solvents to reduce viscosity, improve recovery or reduce steam requirements.
Produced-fluid separation in in situ operations
Produced fluids contain bitumen, condensed steam or formation water, gas and other material that must be separated.
Diluted bitumen and transportation
Raw bitumen is often blended with lighter hydrocarbons so it can move through pipelines to refineries or upgraders.
What oil sands upgrading does
Upgrading converts heavy bitumen into lighter synthetic crude or intermediate products better suited to conventional refining.
Major functions inside an oil sands upgrader
Upgraders combine conversion, hydrotreating, gas treatment, sulphur recovery, hydrogen production and utilities.
Partial upgrading concepts
Partial upgrading aims to improve bitumen enough to reduce diluent demand or improve transport and refinery characteristics without full synthetic-crude upgrading.
Utilities and energy systems in oil sands facilities
Mines, extraction plants, in situ facilities and upgraders depend on power, steam, fuel gas, cooling and water systems.
Greenhouse-gas emissions from oil sands systems
Oil sands emissions arise from fuel combustion, steam generation, upgrading, mine equipment, hydrogen production and fugitive sources.
Air-quality monitoring in the oil sands region
Air emissions and atmospheric deposition are monitored through project, regional, Alberta and federal programs.
Water use across oil sands extraction pathways
Mining and in situ extraction both use water, but source, intensity and recycling systems differ.
Canada-Alberta environmental monitoring in the oil sands
The Oil Sands Monitoring Program studies air, water, wildlife contaminants, biodiversity and landscape disturbance across the region.
Progressive reclamation during oil sands operations
Alberta expects companies to reclaim land when it is no longer needed instead of postponing all work until final closure.
Rebuilding landscapes after oil sands mining
Mine reclamation reconstructs landforms, soils, drainage systems and vegetation after industrial use.
Wetland and peatland restoration
Boreal wetlands and peatlands are difficult to reconstruct because hydrology, organic soils and vegetation develop over long periods.
Reclamation certification and financial responsibility
Alberta requires oil sands mine and in situ operators to reclaim sites and remain responsible until regulatory criteria are met.
Documented reclamation achievements—and their limits
Real reclaimed oil sands sites exist, but they sit within a much larger outstanding reclamation task.
Tailings and mine-water reclamation in 2026
Alberta is developing a long-term approach to oil sands mine water and tailings-pond reclamation following recommendations from a multi-party steering committee.
Mine closure planning
Mine planning has to look beyond final production to infrastructure removal, tailings closure, water management and final landscapes.
Reclamation of in situ oil sands projects
In situ projects avoid open pits but still disturb land through well pads, roads, pipelines, borrow areas and central facilities.