Patent ID: 8479822
Filing Date: 2013-07-09
Classification: E21B

Abstract:
1. A downhole tool for use in a hydrocarbon production well, the downhole tool comprising: a housing defining a flowpath and having an exterior and at least one flow port providing a communication path between said flowpath and said exterior; a sleeve assembly having an inner sleeve and having an expandable seat radially expandable between a normal state and an expanded state, said sleeve assembly being moveable within said housing between a first position and a second position, wherein in said first position said sleeve assembly is radially positioned between said at least one flow port and said flowpath to inhibit fluid communication therethrough; wherein said expandable seat comprises a plurality of seat segments interconnected with at least one-elastomeric member in the normal state and in the expanded state; and wherein said at least one elastomeric member is circumferentially between said plurality of seat segments.