Revisiting underground gas storage as a direct analogue for geologic carbon sequestration: Editorial
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Ever since the early 2000s, I have thought underground (natural) gas storage (UGS) to be a close industrial analogue for geologic carbon sequestration (GCS) as, for example, indicated in an early report by Benson et al.1 Both UGS and GCS use wells to inject and store buoyant gas deep underground in the pore space of rock. Both UGS and GCS can use depleted hydrocarbon reservoirs or saline aquifers as storage complexes. Of course there exist some differences between the two gases, e.g., the greater solubility of CO2 in water relative to CH4 (the primary natural gas component), greater density of super-critical CO2 relative to CH4, and the flammability and buoyancy of CH4 if leaked into the atmosphere. Furthermore, in UGS the natural gas is injected and withdrawn over various time scales rather than constantly injected as in GCS, creating differences in the needs for facility surface infrastructure, and strain on wells, wellheads, and surface flow lines. But overall, UGS seems to serve as a useful example of how large volumes of gas can be handled and stored underground.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1567113
- Journal Information:
- Greenhouse Gases: Science and Technology, Vol. 8, Issue 1; ISSN 2152-3878
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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journal | February 2016 |
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