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US09453391B2 Downhole tool with expandable seat 有权
井下工具带可扩展座椅

Downhole tool with expandable seat
摘要:
A downhole tool for use in a hydrocarbon production well. The downhole tool has a housing defining a flowpath around a longitudinal axis and a seat radially expandable between an unstressed state and an expanded state. The seat has a frame comprising at least one annular sealing element and a plurality of unconnected seat segments. The seat segments are engaged with the frame. The annular sealing element are engaged with an outer surface of each of the plurality of seat segments. The seat forms a tubular structure in the unstressed state.
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