Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

The effects of cycling an air-water interface in St. Peter sandstone

Journal Article · · J. Energy; (United States)
DOI:https://doi.org/10.2514/3.62701· OSTI ID:6621026
In this paper, results are presented of laboratory research directed toward determining the effects of compressed air energy storage on the properties of St. Peter Sandstone. Conditions existing in the rock at the edges of the storage volume were simulated by use of a system which cycles an air-water interface through rock cores, with control of the test temperature, confining pressure, rock pore pressure, fluid pressure differentials, and number of cycles. The properties of the rocks tested in the system were compared to the properties of uncycled control specimens. Rock properties investigated included compressive strength, Young's modulus, permeability, porosity, and fabric. No significant changes were found to be associated with air-water cycling. These laboratory results correspond to those from earlier studies on the same rock. The St. Peter Sandstone appears to be a good candidate for reservoir rock.
Research Organization:
International Engineering Company, Inc., San Francisco, California
OSTI ID:
6621026
Journal Information:
J. Energy; (United States), Journal Name: J. Energy; (United States) Vol. 7:6; ISSN JENED
Country of Publication:
United States
Language:
English