Carbon Sequestration: Geoscience Initiatives for a Macroenvirnmental Problem
University of Maryland
Geological carbon capture and storage (carbon sequestration) has
become one of the most promising and widely embraced means of mitigating
the emissions of greenhouse gases, chiefly CO2. This is in large part
due to the large capacity and use of established technology involved.
However, there remain significant and serious geoscience challenges to
the large-scale deployment of carbon storage, which should be undertaken
now to improve the chances of technical success. Key geoscience questions
surround each potential geological reservoir (saline aquifers, depleted
oil & gas fields, unmineable coal seams, oil shales, and large mafic
rock bodies), many of them shared (e.g., improved understanding of fracture
networks). Beyond that, capacity estimates need revision, measurement,
monitoring, and verification technologies (MMV) require calibration and
development, and biogeochemical issues addressed. Most importantly, accurate
and precise subsurface mapping will determine the success or failure of
any large-scale initiative.
Julio Friedmann received
his B.S. and M.S. from MIT, and his Ph.D. from the Univ. of Southern California.
After working at Exxon and ExxonMobil's upstream research centers, he
is now at the University of Maryland in College Park.