Government and industry recognize that carbon capture and sequestration (CCS) is a promising innovation to help reduce GHG emissions.
What is CCS?
Source: Government of Alberta
- Carbon capture and storage (CCS) is a process that captures carbon dioxide (CO2 ) emissions and stores them in geological formations deep inside the earth.
- CO2 contributes to greenhouse gas emissions, the bulk of which come from the production and use of fossil fuels - coal, oil and gas - as well as electricity.
Source: Government of Alberta YouTube Channel
How CCS Works
Source: Government of Alberta CCS Fact Sheet
- Takes CO2 that would otherwise be emitted into the air and stores it one to two kilometres deep underground.
- CCS is successfully being used in Norway, Australia and in Denmark without adverse effects.
- This technology is successfully being used to enhance oil recovery in older fields throughout Alberta.
(PDF | www.energy.gov.ab.ca)
Carbon Capture & Storage
Carbon capture and sequestration (CCS) is a promising innovation to help reduce our industry’s GHG emissions. CCS is not exclusive to the oil and gas industry or to Alberta's oil sands. CCS, sometimes called carbon capture and storage, is being used in different ways by several companies, but still needs more investment and research. Companies are beginning to capture CO2 and sequester (store) it underground or transport it to conventional oil and gas wells to recover more resources from those wells.
Cenovus’ Weyburn project
For the past nine years, Cenovus Energy has been using carbon dioxide (CO2) at the company's Weyburn project in south eastern Saskatchewan to recover more oil from their aging reservoir.
Carbon dioxide is injected into an oil reservoir to allow the oil to move more freely – it is like mixing turpentine with paint. Water is then injected into the reservoir to flush the oil out of the holes and cracks, and the oil/water mixture is then pumped to the surface. The CO2 remains in place. This process not only results in an increase in the amount of oil recovered, but also in millions of tonnes of carbon stored underground.
Cenovus' CO2 project in Weyburn is the world’s largest, full-scale scientific field study of its kind. To date, more than 13 million tonnes of CO2 have been injected and stored, with a goal to store 30 million tonnes of CO2. This equates to the emissions of 6.7 million cars over one year.
Carbon Capture and Storage:
A Bridge to a Low-Carbon Future
What is carbon capture and storage (CCS)? And could it help tackle climate change?
This new film has leading scientists and environmentalists discuss the merits of CCS and visit projects in Australia and the US. It features experts from institutions including Imperial College London, Princeton University, Shell, the Climate Institute and WWF UK .