Subterranean well interventionless flow restrictor bypass system

摘要

A method of variably restricting flow in a subterranean well can include resisting flow through a flow path, and then selectively opening a pressure barrier which previously prevented flow through another flow path. The flow paths are configured for parallel flow. A flow restrictor system for use with a subterranean well can include at least two flow paths configured for parallel flow, a flow restrictor which resists flow through one flow path, and a pressure barrier which prevents flow through another flow path. The pressure barrier is selectively openable to permit flow through the second flow path.

主权项

1. A flow restrictor system for use with a subterranean well, the system comprising:
at least first and second flow paths extending within an annular space formed between a base pipe and a sleeve surrounding the base pipe, wherein the first and second flow paths extend an equal distance longitudinally through the annular space; a housing defined radially between the base pipe and the sleeve, wherein the first flow path is defined through the housing and wherein at least a portion of the second flow path is defined radially between the sleeve and the housing; a flow restrictor secured in the housing which resists flow through the first flow path; and a pressure barrier which prevents flow through the second flow path, the pressure barrier being selectively openable to permit flow through the second flow path, wherein at least a portion of the second flow path is radially outward from the flow restrictor with respect to the base pipe.