NETL helped scientists at Montana State University evaluate microscopic cementing agents developed by the University that can more effectively penetrate microfractures to improve underground storage of carbon dioxide (CO2), enhance gas well efficiency and seal fluid pathways in shales fractured for natural gas recovery.
The research targeted use of a process called ureolysis-induced calcium carbonate precipitation (UICP), which produces a biomineral solution that can reduce undesired fluid flow. This could enable the more effective restimulation of previously hydraulically fractured shale formations and reduce flow through fractured rocks above storage formations.
The collaborative project involved researchers at Montana State, Lawrence Berkeley National Laboratory and NETL and was supported by EPSCoR, a National Science Foundation program that improves research competitiveness of targeted jurisdictions and a U.S. Department of Energy (DOE) program that supports Ph.D. thesis research.