Lecture: Carbon Capture and Storage (CCS) – demonstrating the safety and performance of underground CO2 storage by site monitoring

Speaker: Professor Andy Chadwick, British Geological Survey

Entry Fee

Members: Free

Visitors: £5.00

Date and Time

19:30 -

Location

Bath Royal Literary and Scientific Institution, 16-18 Queen Square, Bath BA1 2HN


Lecture Description

Underground storage of carbon dioxide emitted from fossil fuel combustion and other industrial processes offers the most credible way of achieving the deep reductions in greenhouse gas emissions agreed at last year’s COP-21 climate change conference in Paris.

The regulatory framework for underground CO2 storage has been set up via a European Directive. In this there is a regulatory requirement to prove that storage sites are not leaking, that their current behaviour is understood, and that stored CO2 will continue to be contained in the long term. Time-lapse monitoring at storage sites, using geophysical and geochemical techniques provides the means by which these quite challenging objectives can be met.

Industrial-scale CO2 injection has been in operation at the Sleipner gas field in the Norwegian North Sea since 1996, with more than 16 million tonnes of CO2 now stored. A comprehensive time-lapse monitoring programme has been carried out, with a series of 3D seismic surveys providing strikingly clear images of the CO2 plume in the storage reservoir and its progressive spreading and growth with time. These can be matched with numerical fluid flow models to demonstrate that subsurface processes are well understood.

Other monitoring datasets from storage sites worldwide also provide robust indication that we do understand the key physical processes controlling the behaviour of stored CO2 and that longer-term predictions of storage site performance are likely to be reliable.


Attending via Zoom

This is a hybrid meeting: you can attend in person or join online via Zoom.

Bath Geological Society Members: Free of charge. Joining instructions and the Zoom link are sent to members by email prior to the lecture.

Visitors & Non-Members: (including members of the Geologists' Association and affiliated societies) Please book via Eventbrite to receive Zoom access (see the Entry Fee details above).

How to join: Click the Zoom link provided in your email or Eventbrite confirmation. You can join using the Zoom desktop or mobile app, or directly via your web browser without installing any software. The virtual waiting room opens approximately 15 minutes before the scheduled start time, and attendees will be admitted before the talk commences.

For any queries about joining online, please contact [email protected].



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