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US 11,111,758 B2Granted
Downhole sleeve tool
AssigneeThe WellBoss Company, LLC
InventorAdrian Oprea
Life of this patent
Estimating the term…
Abstract
A downhole sleeve tool is provided that includes a lower sub defining a central bore and one or more sleeve ports therethrough. There is a piston valve slidably positionable within the lower sub to selectively block communication between the central bore and the one or more sleeve ports. There is an upper sub connectable to the lower sub and sharing another central bore therewith. The upper sub has an inlet port, one or more communication ports, and an outlet port. There is an at least one cartridge assembly disposed in a cartridge bore formed in a wall of the upper sub.
Claims20
A downhole sleeve tool comprising:
- a lower sub comprising a central bore therethrough and an at least one sleeve port;
- a piston valve slidably positionable within the lower sub to selectively block fluid communication between the central bore and the one or more sleeve ports;
- an upper sub connectable to the lower sub, the upper sub further comprising:
- an inlet port;
- an at least one fluid communication port;
- an outlet port;
- and
- a cartridge bore formed within a sidewall of the upper sub;
- a cartridge assembly disposed within the cartridge bore, the cartridge assembly further comprising:
- a spring rod;
- a cartridge sleeve movably positioned on an at least a portion of the spring rod;
- a bias member engaged with the cartridge sleeve;
- a break pin comprising a pin working surface, the break pin disposed within at least a portion of the cartridge sleeve, and engaged with the spring rod,
- wherein the break pin is configured to break from application of a pressure of a fluid against the pin working surface.
11 more elements
A method of opening a downhole sleeve tool, said method comprising the steps of:
- providing a downhole sleeve tool comprising:
- a lower sub comprising:
- a central bore, and at least one lateral sleeve port;
- a piston valve slidably positionable within the lower sub to selectively block fluid communication between the central bore and the at least one sleeve port;
- an upper sub engaged with the lower sub, the upper sub comprising:
- an inlet port,
- an at least one communication port, an outlet port, and a cartridge bore formed in a sidewall of the upper sub;
- a cartridge assembly disposed and housed within the cartridge bore, the cartridge assembly comprising:
- a spring rod;
- a cartridge sleeve slidably positioned on at least a portion of the spring rod;
- a bias member engaged with the cartridge sleeve in a biased position;
- a break pin disposed in at least a portion of the cartridge sleeve, and engaged with the spring rod;
- pressurizing the cartridge bore in a sufficient manner to break the break pin with fluid pressure from the central bore;
- releasing fluid pressure from the cartridge bore to release the bias member from the biased position, and thereby allow the bias member to move the cartridge sleeve to a retracted position;
- after the releasing step, allowing passage of fluid from the cartridge bore to an at least one of:
- one or more subsequent cartridge assemblies via a communications port, and to an uphole end of the piston valve to thereby shift the piston valve away from selectively blocking the sleeve port in order to allow fluid communication between the central bore and the at least one sleeve port.
13 more elements
A downhole sleeve tool comprising:
- a lower sub defining a central bore and one or more sleeve ports therethrough;
- a piston valve slidably positionable within the lower sub to selectively block fluid communication between the central bore and the one or more sleeve ports;
- an upper sub connectable to the lower sub, the upper sub further comprising:
- an inlet port;
- an at least one fluid communication port;
- an outlet port;
- and
- a cartridge bore formed within a sidewall of the upper sub;
- a cartridge assembly disposed within the cartridge bore, the cartridge assembly further comprising:
- a spring rod;
- a cartridge sleeve movably positioned on at least a portion of the spring rod;
- a bias member engaged with the cartridge sleeve;
- a break pin disposed within at least a portion of the cartridge sleeve, and engaged with the spring rod,
- wherein breakage of the break pin by fluid pressure from the central bore and release of fluid pressure allows extension of the bias member and axial movement of the cartridge sleeve, allowing passage of fluid to one or more subsequent cartridge assemblies via a communications port, or allows passage of fluid to an uphole end of the piston valve to thereby shift the valve to allow communication between the central bore and the one or more sleeve ports.
11 more elements
Dependencies are inferred from the claim text.