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Glossary of Industry Terms

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Tailings

Waste products from oil sands mining, extraction, and upgrading operations.

 

Tertiary Recovery

Enhancing recovery using sophisticated methods such as miscible or fire flooding.

 

Thermal Electricity

Electricity generated from burning fossil fuels such as coal, natural gas and refined petroleum products; biomass such as wood, wood waste, pulping liquors and landfill methane; or other waste materials such as used tires.

Tight Gas Sands

Natural gas found in sandstone with low permeability.

 

Toluene

Clear, odorless, flammable liquid that has the characteristic aromatic odor of model airplane glue. It is added to gasoline to increase octane.

 

Top Drives

Hydraulic or electric motors that are suspended in the derrick above the rig floor to rotate the drill string and bit.

Trap

The rock formation which prevents oil and gas from migrating out of the reservoir.

 

Tripping

The process of removing the drill string from the bore hole to change the bit and then running the drill string and new bit back into the hole.

 

Trunk Lines

Large-diameter pipelines that transport crude oil, natural gas liquids and refined petroleum products to refineries and petrochemical plants. Some trunk lines also transport refined products to consuming areas.