Patent ID: 9624764
Date: 2017-04-18
CPC Classifications: E21B

Claim:
1. A downhole casing assembly for testing the cement integrity of a targeted annular seal of a wellbore, comprising: a testing assembly body for positioning within a tubular string of the wellbore, the testing assembly body having an interior surface defining a cavity and at least one aperture extending through the body to an exterior surface; a frangible body positioned within the cavity and comprising material adapted to seal the at least one aperture; and wherein a passageway is created between the cavity and the exterior surface of the testing assembly when the frangible body is substantially removed, the passageway extending to an annulus of the wellbore such that pressure and fluid communication from an interior of the tubular string and the annulus is provided to test the cement integrity of the targeted tubular annular seal of the wellbore after the cement has been selectively positioned and cured.