Single sleeve downhole tool with detent pins for shifting
AssigneeHalliburton Energy Services, Inc.
InventorFrank Vinicia Acosta Villarreal
Life of this patent
Estimating the term…
Abstract
A downhole tool can include a body within a tubing string, a first component such as an outer mandrel, a detent pin connected to an inside of the first component, wherein the detent pin comprises a pin body and a spring located within the pin body, and a second component such as a sliding sleeve that moves in relation to the first component. The outside of the sliding sleeve includes a channel with a first stop, second stop, and optionally a third stop. When a pressure differential is applied to the tool, the spring can compress and the detent pin moves from the first stop to the second stop, which can open flow ports into a wellbore annulus. The detent pin can traverse again through the channel from the second stop to the third stop, which can close the flow ports.
Claims20
A downhole tool comprising:
- a body configured to fit within a tubing string located in a wellbore;
- a first component located around an outside of at least a portion of the body;
- a detent pin connected to an inside of the first component, wherein the detent pin comprises a pin body, a bushing, and a spring located within the bushing and the pin body;
- and
- a second component located within the body and inside a portion of the first component,
- wherein the second component is moveable in relation to the first component,
- wherein a portion of an outside of the second component comprises a channel,
- wherein the channel comprises a first stop and a second stop,
- wherein the first stop and the second stop have a depth that is greater than a depth of the channel as measured from an inner diameter of the first component, and
- wherein the detent pin traverses within the channel from the first stop to the second stop when a pressure differential is applied to the second component.
A method of performing an oil or gas operation in a wellbore comprising:
- introducing a tubing string and a downhole tool installed within the tubing string into the wellbore, wherein the downhole tool comprises:
- a body configured to fit within the tubing string;
- a first component located around an outside of at least a portion of the body;
- a detent pin connected to an inside of the first component, wherein the detent pin comprises a pin body, a bushing, and a spring located within the bushing and the pin body;
- and
- a second component located within the body and inside a portion of the first component, wherein a portion of an outside of the second component comprises a channel, wherein the channel comprises a first stop and a second stop, wherein the first stop and the second stop have a depth that is greater than a depth of the channel as measured from an inner diameter of the first component;
- and
- applying a pressure differential to the second component, wherein the application of the pressure differential causes the second component to move in relation to the first component and causes the detent pin to traverse within the channel from the first stop to the second stop.
Dependencies are inferred from the claim text.