Research project on CO2 geological storage and groundwaterresources: Large-scale hydrological evaluation and modeling of impact ongroundwater systems

Birkholzer, Jens ; Zhou, Quanlin ; Rutqvist, Jonny ; Jordan, Preston ; Zhang, K. ; Tsang, Chin-Fu

Lawrence Berkeley National Laboratory

关键词: Surface Waters;    Storage;    Capacity;    Carbon Dioxide;    54;   

DOI  :  10.2172/932564
RP-ID  :  LBNL--63544
RP-ID  :  DE-AC02-05CH11231
RP-ID  :  932564

美国|英语

来源: UNT Digital Library

【 摘 要 】

If carbon dioxide capture and storage (CCS) technologies areimplemented on a large scale, the amounts of CO2 injected and sequesteredunderground could be extremely large. The stored CO2 then replaces largevolumes of native brine, which can cause considerable pressureperturbation and brine migration in the deep saline formations. Ifhydraulically communicating, either directly via updipping formations orthrough interlayer pathways such as faults or imperfect seals, theseperturbations may impact shallow groundwater or even surface waterresources used for domestic or commercial water supply. Possibleenvironmental concerns include changes in pressure and water table,changes in discharge and recharge zones, as well as changes in waterquality. In compartmentalized formations, issues related to large-scalepressure buildup and brine displacement may also cause storage capacityproblems, because significant pressure buildup can be produced. Toaddress these issues, a three-year research project was initiated inOctober 2006, the first part of which is summarized in this annualreport.