Pressure pulse-initiated flow restrictor bypass system
AssigneeHalliburton Energy Services, Inc.
InventorsLiang Zhao, Jean-Marc Lopez
Life of this patent
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Abstract
A method of variably restricting flow in a subterranean well can include resisting the flow through a sidewall of a tubular string, and then selectively opening a device in response to a predetermined pressure signal being transmitted. The opening of the device can substantially reduce a resistance to the flow through the tubular string sidewall. A flow restrictor system for use with a subterranean well can include a flow restrictor which resists flow through system, a pressure sensor, and an initially closed device which opens and thereby permits the flow to bypass the flow restrictor, in response to a predetermined pressure signal being detected by the sensor.
Claims15
A flow restrictor system for use with a subterranean well, the system comprising:
- a flow restrictor which resists flow through the system;
- a pressure sensor;
- and
- an initially closed device which opens and thereby permits the flow to bypass the flow restrictor, in response to a predetermined pressure signal being detected by the sensor, wherein the device comprises multiple materials which increase pressure in the device in response to contact of the materials with each other.
A method of variably restricting flow in a subterranean well, the method comprising:
- resisting the flow through a sidewall of a tubular string;
- and
- then selectively opening a device in response to a predetermined pressure signal being transmitted, the opening of the device substantially reducing a resistance to the flow through the tubular string sidewall, wherein the device comprises multiple materials which increase pressure in the device in response to contacting the materials with each other.
Dependencies are inferred from the claim text.