System, assembly and method for port control

摘要

A port control system including a group of port control assemblies at least one of which delaying passage of a plug and at least one of which preventing passage of a plug, each assembly of the group configured to shift a sleeve to open one or more ports responsive to contact with a same sized plug upon fluid pressure differential across the plug; and at least one second group of port control assemblies at least one of which delaying passage of a plug and at least one of which preventing passage of a plug, each assembly of the group configured to shift a sleeve to open one or more ports responsive to contact with a same sized plug upon fluid pressure differential across the plug. A method is included.

主权项

1. A port control system comprising:
a group of port control assemblies at least one of which delaying passage of a first plug and at least one of which preventing passage of the first plug, each assembly of the group configured to shift a first sleeve from a first position to a second position to open one or more ports responsive to contact with the first plug upon fluid pressure differential across the first plug; the first sleeve shifting in a direction that is along a direction of movement of the first plug and expanding radially toward a housing of the port control system to reach the second position to open the one or more ports; and at least one second group of port control assemblies at least one of which delaying passage of a second plug and at least one of which preventing passage of the second plug, each assembly of the group configured to shift a second sleeve to open one or more ports responsive to contact with the second plug upon fluid pressure differential across the second plug.