Nav: Home

Oil rigs could pump CO2 emissions into rocks beneath North Sea

August 08, 2019

North Sea oil and gas rigs could be modified to pump vast quantities of carbon dioxide emissions into rocks below the seabed, research shows.

Refitting old platforms to act as pumping stations for self-contained CO2 storage sites would be 10 times cheaper than decommissioning the structures, researchers say.

The sites would store emissions generated by natural gas production, and could also be used to lock away CO2 produced by other sources - such as power stations - helping to combat climate change.

Scientists from the University of Edinburgh analysed data from the Beatrice oilfield - 15 miles off the north east coast of Scotland. They found that existing platforms could be re-used as storage sites by making minor modifications.

Using a computer model, they worked out that, over a 30-year period, the scheme would be around 10 times cheaper than decommissioning the Beatrice oilfield, which is likely to cost more than £260 million.

Large amounts of natural gas and heat energy can still be extracted from saltwater in exhausted oil and gas fields, the team found. The gas can be used as a fuel or burnt on platforms to generate electricity.

Mixing the saltwater from the oil field with CO2 produced by burning the gas enables it to be injected deep underground for permanent safe storage, researchers say.

The scheme would bring down the costs of storing carbon emissions and postpone expensive decommissioning of North Sea oil and gas infrastructure, the team says.

The study, published in International Journal of Greenhouse Gas Control, was completed as part of the University of Edinburgh's GeoEnergy MSc programme.

Lead author Jonathan Scafidi, of the University of Edinburgh's School of GeoSciences, said: "Removing platforms at large expense is short-sighted. Re-using them to dispose of CO2 in rocks several kilometres beneath the seabed will not only be cheaper, but provides a cost-effective means of cutting the UK's CO2 emissions to meet the 2050 net-zero target."

Dr Stuart Gilfillan, also of the School of GeoSciences, who co-ordinated the study, said: "Our study shows, for the first time, that natural gas production from saltwater can be combined with CO2 storage in the North Sea. The potential revenue provided by extending natural gas production in the North Sea could help kick-start a world-leading carbon capture and storage industry in the UK."
-end-


University of Edinburgh

Related Science Articles:

75 science societies urge the education department to base Title IX sexual harassment regulations on evidence and science
The American Educational Research Association (AERA) and the American Association for the Advancement of Science (AAAS) today led 75 scientific societies in submitting comments on the US Department of Education's proposed changes to Title IX regulations.
Science/Science Careers' survey ranks top biotech, biopharma, and pharma employers
The Science and Science Careers' 2018 annual Top Employers Survey polled employees in the biotechnology, biopharmaceutical, pharmaceutical, and related industries to determine the 20 best employers in these industries as well as their driving characteristics.
Science in the palm of your hand: How citizen science transforms passive learners
Citizen science projects can engage even children who previously were not interested in science.
Applied science may yield more translational research publications than basic science
While translational research can happen at any stage of the research process, a recent investigation of behavioral and social science research awards granted by the NIH between 2008 and 2014 revealed that applied science yielded a higher volume of translational research publications than basic science, according to a study published May 9, 2018 in the open-access journal PLOS ONE by Xueying Han from the Science and Technology Policy Institute, USA, and colleagues.
Prominent academics, including Salk's Thomas Albright, call for more science in forensic science
Six scientists who recently served on the National Commission on Forensic Science are calling on the scientific community at large to advocate for increased research and financial support of forensic science as well as the introduction of empirical testing requirements to ensure the validity of outcomes.
World Science Forum 2017 Jordan issues Science for Peace Declaration
On behalf of the coordinating organizations responsible for delivering the World Science Forum Jordan, the concluding Science for Peace Declaration issued at the Dead Sea represents a global call for action to science and society to build a future that promises greater equality, security and opportunity for all, and in which science plays an increasingly prominent role as an enabler of fair and sustainable development.
PETA science group promotes animal-free science at society of toxicology conference
The PETA International Science Consortium Ltd. is presenting two posters on animal-free methods for testing inhalation toxicity at the 56th annual Society of Toxicology (SOT) meeting March 12 to 16, 2017, in Baltimore, Maryland.
Citizen Science in the Digital Age: Rhetoric, Science and Public Engagement
James Wynn's timely investigation highlights scientific studies grounded in publicly gathered data and probes the rhetoric these studies employ.
Science/Science Careers' survey ranks top biotech, pharma, and biopharma employers
The Science and Science Careers' 2016 annual Top Employers Survey polled employees in the biotechnology, biopharmaceutical, pharmaceutical, and related industries to determine the 20 best employers in these industries as well as their driving characteristics.
Three natural science professors win TJ Park Science Fellowship
Professor Jung-Min Kee (Department of Chemistry, UNIST), Professor Kyudong Choi (Department of Mathematical Sciences, UNIST), and Professor Kwanpyo Kim (Department of Physics, UNIST) are the recipients of the Cheong-Am (TJ Park) Science Fellowship of the year 2016.
More Science News and Science Current Events

Top Science Podcasts

We have hand picked the top science podcasts of 2019.
Now Playing: TED Radio Hour

Accessing Better Health
Essential health care is a right, not a privilege ... or is it? This hour, TED speakers explore how we can give everyone access to a healthier way of life, despite who you are or where you live. Guests include physician Raj Panjabi, former NYC health commissioner Mary Bassett, researcher Michael Hendryx, and neuroscientist Rachel Wurzman.
Now Playing: Science for the People

#544 Prosperity Without Growth
The societies we live in are organised around growth, objects, and driving forward a constantly expanding economy as benchmarks of success and prosperity. But this growing consumption at all costs is at odds with our understanding of what our planet can support. How do we lower the environmental impact of economic activity? How do we redefine success and prosperity separate from GDP, which politicians and governments have focused on for decades? We speak with ecological economist Tim Jackson, Professor of Sustainable Development at the University of Surrey, Director of the Centre for the Understanding of Sustainable Propserity, and author of...
Now Playing: Radiolab

An Announcement from Radiolab