Flow control tool, method and system

Abstract

A flow control tool includes a housing, a mandrel in the housing, the mandrel supporting a plurality flow control units (FCU), and a seal between the housing and the mandrel. A method for managing flow includes shifting a mandrel having a plurality of Flow Control Units (FCU) into a position that causes an FCU of the plurality of FCUs to be in an operational position, and then shifting a different FCU of the plurality of FCUs into an operational position. A gravel pack assembly includes the flow control tool. A method for gravel packing includes operating a gravel pack assembly in an open mode, operating the gravel pack assembly in a check mode, and operating the gravel pack assembly in a closed mode. A borehole system includes a borehole in a subsurface formation, a string in the borehole, and a tool, disposed within or as a part of the string.

Dependencies are inferred from the claim text.