The present invention relates to compositions useful for isolating a portion of a wellbore. In one embodiment, a composition includes a sealant composition containing a wellbore treatment fluid and a set modifier component. The sealant composition can be placed into the wellbore and subjected to ionizing radiation that alters the set modifier component, triggering the setting of the sealant composition.
Radiation-Induced Triggering for Set-On-Command Compositions
Lewis, SJ., Davis, J., Lamvik, M., Badalamenti, A., Myers, D., Gupta, V., ... Rao, V. (2012). IPC No. U.S. Radiation-Induced Triggering for Set-On-Command Compositions. (U.S. Patent No. 8143198).