Shape-memory apparatuses for restricting fluid flow through a conduit and methods of using same

摘要

Apparatuses for restricting fluid flow through a well conduit comprise a tubular member having a seat member disposed within the tubular member for receiving a plug element. One or both of the seat member or the plug element comprise at least one shape-memory material to facilitate the plug element being able to land on the seat and/or to facilitate the plug element to pass through a seat member or other restriction in the tubular member either before or after landing on a seat.

主权项

1. An apparatus for restricting flow through a conduit, the apparatus comprising:
a housing having a longitudinal bore and a seat member disposed within the bore, the seat member comprising a shape-memory material that is moveable between a first shape for receiving a plug element to restrict fluid flow through the longitudinal bore and a second shape for passage of the plug element through the seat member in response to at least one stimulus selected from the group consisting of temperature, electromagnetic field, acidity, chemical solution and light.