Effects of reduction in porosity and permeability with depth on storage capacity and injectivity in deep saline aquifers: A case study from the Mount Simon Sandstone aquifer

International Journal of Greenhouse Gas Control
By: , and 

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Abstract

The Upper Cambrian Mount Simon Sandstone is recognized as a deep saline reservoir that has significant potential for geological sequestration in the Midwestern region of the United States. Porosity and permeability values collected from core analyses in rocks from this formation and its lateral equivalents in Indiana, Kentucky, Michigan, and Ohio indicate a predictable relationship with depth owing to a reduction in the pore structure due to the effects of compaction and/or cementation, primarily as quartz overgrowths. The regional trend of decreasing porosity with depth is described by the equation: ϕ(d) = 16.36 × e−0.00039*d, where ϕ is the porosity and d is the depth in m. The decrease of porosity with depth generally holds true on a basinwide scale. Bearing in mind local variations in lithologic and petrophysical character within the Mount Simon Sandstone, the source data that were used to predict porosity were utilized to estimate the pore volume available within the reservoir that could potentially serve as storage space for injected CO2. The potential storage capacity estimated for the Mount Simon Sandstone in the study area, using efficiency factors of 1%, 5%, 10%, and 15%, is 23,680, 118,418, 236,832, and 355,242 million metric tons of CO2, respectively.

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Publication type Article
Publication Subtype Journal Article
Title Effects of reduction in porosity and permeability with depth on storage capacity and injectivity in deep saline aquifers: A case study from the Mount Simon Sandstone aquifer
Series title International Journal of Greenhouse Gas Control
DOI 10.1016/j.ijggc.2010.03.001
Volume 5
Issue 1
Year Published 2011
Language English
Publisher Elsevier
Description 11 p.
First page 146
Last page 156
Country United States
State Ohio, Illinois, Michigan, Kentucky, West Virginia, Pennsylvania, New York
Other Geospatial Mount Simon Sandstone aquifer
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