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US 11,454,074 B2Granted
Back pressure valve
AssigneeInnovex Downhole Solutions, Inc.
InventorsJustin Kellner, Jason Voss
Life of this patent
Estimating the term…
Abstract
A valve assembly for use in a wellbore includes a housing defining a bore that extends axially therethrough, a valve seat positioned in the housing, and a valve element movably positioned in the housing. The valve seat and the valve element are concentric to one another, but non-concentric with the housing, such that a centerline defined through the valve seat and the valve element is offset from a central axis of the housing. The valve element is linearly actuatable relative to the housing between a closed position in which the valve element engages the valve seat and blocks the bore and an open position in which the valve element permits flow of fluid therethrough.
Claims18
A valve assembly for use in a wellbore, the valve assembly comprising:
- a housing defining a bore that extends axially therethrough;
- a valve seat positioned in the housing;
- and
- a valve element movably positioned in the housing,
- wherein the valve seat and the valve element are concentric to one another, but non-concentric with the housing, such that a centerline defined through the valve seat and the valve element is offset from a central axis of the housing,
- wherein the valve element is linearly actuatable relative to the housing between a closed position in which the valve element engages the valve seat and blocks the bore and an open position in which the valve element permits flow of fluid therethrough, and
- wherein the valve element in the open position is configured to permit an obstructing member to move through the valve seat and around the valve element.
4 more elements
A valve assembly for use in a wellbore, the valve assembly comprising:
- a housing defining a bore that extends axially therethrough;
- a valve seat positioned in the housing;
- and
- a valve element movably positioned in the housing,
- wherein the valve seat and the valve element are concentric to one another, but non-concentric with the housing, such that a centerline defined through the valve seat and the valve element is offset from a central axis of the housing,
- wherein the valve element is linearly actuatable relative to the housing between a closed position in which the valve element engages the valve seat and blocks the bore and an open position in which the valve element permits flow of fluid therethrough, and
- wherein the bore comprises a first bore portion and a second bore portion, the first bore portion being smaller in radial dimension than the second bore portion and radially offset therefrom, the valve seat being disposed in the first bore portion and the valve element being disposed at least partially in the second bore portion.
4 more elements
A valve assembly for use in a wellbore, the valve assembly comprising:
- a housing defining a bore that extends axially therethrough;
- a valve seat positioned in the housing;
- a valve element movably positioned in the housing,
- wherein the valve seat and the valve element are concentric to one another, but non-concentric with the housing, such that a centerline defined through the valve seat and the valve element is offset from a central axis of the housing, and
- wherein the valve element is linearly actuatable relative to the housing between a closed position in which the valve element engages the valve seat and blocks the bore and an open position in which the valve element permits flow of fluid therethrough;
- and
- a blocking member configured to direct an obstructing member around the valve element when the valve element is in the open position.
4 more elements
A method comprising:
- positioning a valve seat in a first bore portion of a housing of a valve assembly;
- positioning a valve element in a second bore portion of the housing, the second bore portion having a larger radial dimension than the first bore portion, wherein the first and second bore portions are radially offset;
- and
- linearly actuating the valve element from a closed position in which the valve element blocks fluid flow through the housing in at least one direction to an open position in which the valve element is spaced axially apart from the valve seat,
- wherein linearly actuating the valve element comprises pumping fluid downhole through a workstring to which the valve assembly is connected, and wherein the valve element prevents reverse fluid flow in an uphole direction.
2 more elements
A method comprising:
- positioning a valve seat in a first bore portion of a housing of a valve assembly;
- positioning a valve element in a second bore portion of the housing, the second bore portion having a larger radial dimension than the first bore portion, wherein the first and second bore portions are radially offset;
- linearly actuating the valve element from a closed position in which the valve element blocks fluid flow through the housing in at least one direction to an open position in which the valve element is spaced axially apart from the valve seat;
- and
- deploying one or more obstructing members through the housing when the valve element is in the open position.
2 more elements
A downhole valve, comprising:
- a top sub comprising an upper connection for connecting to a superposed tubular of a workstring;
- a first valve assembly coupled to the top sub;
- a second valve assembly coupled to the first valve assembly;
- and
- a bottom sub coupled to the second valve assembly and comprising a lower connection for connecting to a subjacent tubular of the workstring,
- wherein:
- the top sub, first valve, second valve assembly, and the bottom sub cooperatively define at least a portion of a bore extending axially therethrough, and
- the first valve assembly comprises:
- a housing coupled to the top sub;
- and
- a module including a valve seat and a valve element, the module being non-concentrically disposed within the housing, such that a centerline defined through the valve seat and the valve element is offset from a central axis of the housing,
- wherein the valve element is linearly actuatable between a closed position in which the valve element engages the valve seat and blocks the bore and an open position in which the valve element permits flow of fluid therethrough.
9 more elements
Dependencies are inferred from the claim text.