Downhole system and apparatus incorporating valve assembly with resilient deformable engaging element

摘要

An apparatus, system and method relating to a valve assembly for use in a subterranean well for oil, gas, or other hydrocarbons. The valve assembly comprises an engaging element with a resilient portion having a first shape when a first pressure differential is applied across the engaging element in a direction and a second shape when a second pressure differential is applied across the element in the direction; a receiving element having sealing section; wherein the engaging element is engagable with the first receiving element to substantially prevent the flow of fluids through the sealing section a pressure differential is applied to the engaging element that is less than a first pressure differential; wherein the engaging element is extrudable through the first receiving element by applying a second pressure differential that is greater than the first pressure differential.

主权项

1. A system of valve assemblies for use in a subterranean well, for oil, gas, or other hydrocarbons, said system comprising:
an engaging element formed of a resilient deformable material; a first receiving element having a sealing section engagable with said engaging element; a second receiving element having a sealing section engagable with said engaging element; wherein said engaging element is engagable with the sealing section of said first receiving element to form a fluid seal having a first pressure rating, and wherein said engaging element is extrudable through said first receiving element upon application of a second pressure differential that exceeds the first pressure rating; and wherein said engaging element is matable to said second receiving element to form a fluid seal after having passed through said first receiving element.