Downhole tool with exposable and openable flow-back vents

Details Downhole tool with exposable and openable flow-back vents Downhole tool with exposable and openable flow-back vents

2011-03-08

2011-03-08

Thompson, Kenneth (Department: 3676)

Wells

Packers or plugs

With expanding anchor

C166S376000

Reexamination Certificate

active

07900696

ABSTRACT:
A down hole flow control tool for use in a well bore, such as a bridge or frac plug, includes back-flow vent holes in a central mandrel and initially covered by a member on the mandrel, such as a lower slip or a lower cone. In a subsequent, set configuration, the member moves away from the vent hole allowing back flow of well fluids.

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