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Title: CO2/brine/rock interactions in Lower Tuscaloosa formation

Journal Article · · Greenhouse Gases: Science and Technology
DOI:https://doi.org/10.1002/ghg.1611· OSTI ID:1569756

Saline aquifers are the largest potential continental geologic CO2 sequestration resource. Understanding of potential geochemically induced changes to the porosity and permeability of host CO2 storage and sealing formation rock will improve our ability to predict CO2 plume dynamics, storage capacity, and long–term reservoir behavior. Experiments exploring geochemical interactions of CO2/brine/rock on saline formations under CO2 sequestration conditions were conducted in a static system. Chemical interactions in core samples from the Lower Tuscaloosa formation from Jackson County, Mississippi, with exposure to CO2–saturated brine under sequestration conditions were studied through six months of batch exposure. The experimental conditions to which the core samples of Lower Tuscaloosa sandstone and Selma chalk were exposed to a temperature of 85°C, CO2 pressure of 23.8 MPa (3500 psig), while immersed in a model brine representative of Tuscaloosa Basin. Computed tomography (CT), X–Ray diffraction (XRD), Scanning Electron Microscopy (SEM), brine chemistry, and petrography analyses were performed before and after the exposure. Permeability measurements from the sandstone core sample before and after exposure showed a permeability reduction. No significant change of the permeability measurements was noticed for the core sample obtained from Selma chalk after it was exposed to CO2/brine for six months. Furthermore, these results have implications for performance of the storage interval, and the integrity of the seal in a CO2 storage setting.

Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Organization:
USDOE
OSTI ID:
1569756
Report Number(s):
NETL-PUB-20283
Journal Information:
Greenhouse Gases: Science and Technology, Vol. 6, Issue 6; ISSN 2152-3878
Publisher:
Society of Chemical Industry, WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 17 works
Citation information provided by
Web of Science

References (23)

A new optimization approach to energy network modeling: anthropogenic CO 2 capture coupled with enhanced oil recovery : A new optimization approach to energy network modeling journal December 2012
Coupled alkali-feldspar dissolution and secondary mineral precipitation in batch systems: 1. New experiments at 200 °C and 300 bars journal January 2009
US Department of Energy’s regional carbon sequestration partnership initiative: Update on validation and development phases journal January 2011
The conditions limiting CO2 storage in aquifers journal September 1993
Geochemistry of CO2 sequestration in the Jurassic Navajo Sandstone, Colorado Plateau, Utah journal February 2007
Evaporite Caprock Integrity: An Experimental Study of Reactive Mineralogy and Pore-Scale Heterogeneity during Brine-CO 2 Exposure journal August 2012
CO2–rock–brine interactions in Lower Tuscaloosa Formation at Cranfield CO2 sequestration site, Mississippi, U.S.A. journal January 2012
Influence of carbon dioxide on coal permeability determined by pressure transient methods journal January 2009
An experimental investigation of trace element dissolution in carbon dioxide: Applications to the geological storage of CO2 journal October 2011
A study of safe CO 2 storage capacity in saline aquifers: a numerical study : CO journal October 2012
CO2–brine–rock interaction — First results of long-term exposure experiments at in situ P–T conditions of the Ketzin CO2 reservoir journal August 2010
Geochemical effects of CO2 sequestration in sandstones under simulated in situ conditions of deep saline aquifers journal September 2008
Experimental determination of porosity and permeability changes induced by injection of CO2 into carbonate rocks journal July 2009
Physical and chemical characteristics of potential seal strata in regions considered for demonstrating geological saline CO2 sequestration journal February 2011
X-ray microtomography characterization of porosity, permeability and reactive surface changes during dissolution journal March 2011
Reactivity of Mount Simon Sandstone and the Eau Claire Shale Under CO 2 Storage Conditions journal August 2012
Understanding the significance of in situ coal properties for CO 2 sequestration: An experimental and numerical study : Coal properties for CO2 sequestration journal July 2013
Numerical simulation of porosity and permeability evolution of Mount Simon sandstone under geological carbon sequestration conditions journal May 2015
Effect of contaminants from flue gas on CO 2 sequestration in saline formation : CO2 sequestration journal December 2013
The dissolution kinetics of major sedimentary carbonate minerals journal July 2002
North Dakota lignite and Pittsburgh bituminous coal: a comparative analysis in application to CO<SUB align=right>2 sequestration journal January 2011
Modeling and simulation of carbon sequestration at Cranfield incorporating new physical models journal October 2013
CO2 Sequestration in Saline Formation journal January 2014

Cited By (3)


Figures / Tables (2)