Patent ID: 8701765

Claim:
A method for gravel packing a wellbore, comprising: locating an isolation valve assembly within the wellbore, the isolation valve assembly comprising: a conduit having first and second portions that are at least partially concentric with one another; a first annular sleeve positioned radially inward from the conduit; and a second annular sleeve coupled to the first annular sleeve and positioned radially outward therefrom, wherein the second annular sleeve moves axially from a first position to a second position in response to movement of the first annular sleeve; engaging a latch profile formed in an inner surface of the first annular sleeve with an engagement profile of a shifting tool; engaging a detent formed on an outer surface of the first annular sleeve with a notch formed in an inner surface of a tubular member positioned radially between the first and second annular sleeves, wherein the first annular sleeve comprises a collet region that biases the detent into the notch; and flowing gravel slurry through the first and second portions of the conduit into the wellbore to pack the wellbore with the gravel slurry when the second annular sleeve is in the first position.