Patent attributes
A sealing system for fluidly sealing a portion of a wellbore including a housing, a rupture disc disposed within a housing inner bore, and a plug disposed within the housing inner bore. The rupture disc includes a base and a central portion, which extends across the housing inner bore to fluidly seal the housing inner bore in a sealed state. The plug fluidly seals the housing inner bore in the sealed state. The plug is disposed an axial distance from the rupture disc in the sealed state. In some embodiments, a sleeve is disposed within the housing inner bore. A central bore of the sleeve retains the plug in the sealed state. Upon a release event, the plug is released from the sleeve. The release of the plug triggers a rupture event, which fractures the rupture disc. The plug clears rupture disc fragments.