US-12618304-B2 - Downhole isolation tool including an isolation sleeve and sacrificial plug member

Abstract

Provided is a downhole isolation tool, a well system, and a method. The downhole isolation tool, in one aspect, includes an outer housing, the outer housing having a fluid passageway extending along a length thereof, an outer housing exterior surface, and an outer housing interior surface, as well as one or more fluid flow ports connecting the fluid passageway and the outer housing exterior surface. The downhole isolation tool, in one aspect, further includes an isolation sleeve positioned within the fluid passageway, the isolation sleeve configured to shift between an open state and a closed state covering the one or more fluid flow ports and obstructing fluid flow between the fluid passageway and the outer housing exterior surface, as well as a sacrificial plug member fluidly coupled with the fluid passageway, the sacrificial plug member configured to seal fluid flow through the fluid passageway.

Inventors

• Walker Martin
• Matthew James Kelsey
• David Joe Steele

Assignees

• HALLIBURTON ENERGY SERVICES, INC.

Dates

Publication Date

20260505

Application Date

20240429

Claims (20)

1. 1 . A downhole tool, comprising: a downhole isolation tool, the downhole isolation tool including: an outer housing, the outer housing having a fluid passageway extending along a length thereof, an outer housing exterior surface, and an outer housing interior surface; one or more fluid flow ports connecting the fluid passageway and the outer housing exterior surface; an isolation sleeve positioned within the fluid passageway, the isolation sleeve configured to shift between an open state allowing fluid flow between the fluid passageway and the outer housing exterior surface, and a closed state covering the one or more fluid flow ports and obstructing fluid flow between the fluid passageway and the outer housing exterior surface; and a sacrificial plug member fluidly coupled with the fluid passageway downhole of the one or more fluid flow ports, the sacrificial plug member configured to seal fluid flow through the fluid passageway; and a lower completion including a tubular string, the downhole isolation tool coupled to a downhole end of the lower completion.
2. 2 . The downhole tool as recited in claim 1 , wherein the outer housing has an outer housing shoulder along the outer housing interior surface, and the isolation sleeve has an isolation sleeve shoulder along its isolation sleeve exterior surface.
3. 3 . The downhole tool as recited in claim 2 , further including a biasing spring coupled with the outer housing shoulder and the isolation sleeve shoulder.
4. 4 . The downhole tool as recited in claim 3 , wherein the biasing spring is configured to bias the isolation sleeve away from the sacrificial plug member.
5. 5 . The downhole tool as recited in claim 3 , wherein the biasing spring is configured to bias the isolation sleeve toward the sacrificial plug member.
6. 6 . The downhole tool as recited in claim 1 , further including a retention device coupled between the outer housing and the isolation sleeve, the retention device configured to keep the isolation sleeve in the closed state after having moved from the open state.
7. 7 . The downhole tool as recited in claim 6 , wherein the retention device is a J-slot/pin retention device.
8. 8 . The downhole tool as recited in claim 7 , wherein the J-slot/pin retention device includes a J-slot in one of the outer housing or isolation sleeve and a pin in an other of the isolation sleeve or outer housing, and further wherein the J-slot/pin retention device has a run-in-hole slot position configured to keep the isolation sleeve in the open state, an intermediate compressed slot position, and a final compressed slot position configured to keep the isolation sleeve in the closed state after having moved from the open state.
9. 9 . The downhole tool as recited in claim 6 , wherein the retention device is a snap ring/snap ring grove retention device or body lock ring retention device.
10. 10 . The downhole tool as recited in claim 9 , wherein the retention device is the snap ring/snap ring groove retention device, and further wherein a snap ring is located in one of the outer housing or isolation sleeve and a snap ring groove in an other of the isolation sleeve or outer housing.
11. 11 . The downhole tool as recited in claim 1 , further including an uphole end sub coupled to the uphole end of the outer housing and a downhole end sub coupled to the downhole end of the outer housing.
12. 12 . The downhole tool as recited in claim 11 , wherein the one or more fluid flow ports are one or more uphole fluid flow ports, and further including one or more downhole fluid flow ports.
13. 13 . The downhole tool as recited in claim 12 , wherein the one or more downhole fluid flow ports are located in the downhole end sub, the one or more downhole fluid flow ports configured to provide fluid flow around the sacrificial plug member when the isolation sleeve is in the open state.
14. 14 . The downhole tool as recited in claim 11 , wherein the sacrificial plug member is positioned between the downhole end of the outer housing and the downhole end sub.
15. 15 . The downhole tool as recited in claim 11 , further including a sacrificial plug rupture device located proximate and uphole of the sacrificial plug member, the sacrificial plug rupture device configured to move from an undeployed state leaving the sacrificial plug member intact while the isolation sleeve is in the open state to a deployed state rupturing the sacrificial plug member after the isolation sleeve has moved to the closed state.
16. 16 . The downhole tool as recited in claim 15 , wherein the sacrificial plug rupture device forms at least a portion of the downhole end sub.
17. 17 . The downhole tool as recited in claim 15 , wherein the sacrificial plug rupture device includes a shear feature configured to hold it in the undeployed state and a spring member configured to move it to the deployed state.
18. 18 . The downhole tool as recited in claim 17 , wherein the spring member is a fluid pressure spring configured to move the sacrificial plug rupture device to the deployed state.
19. 19 . The downhole tool as recited in claim 1 , wherein the sacrificial plug is a glass sacrificial plug.
20. 20 . The downhole tool as recited in claim 1 , wherein the sacrificial plug is a ceramic sacrificial plug.

Description

BACKGROUND The unconventional market is extremely competitive. The market is trending towards longer horizontal wells to increase reservoir contact. Multilateral wells offer an alternative approach to maximize reservoir contact. Multilateral wells include one or more lateral wellbores extending from a main wellbore. A lateral wellbore is a wellbore that is diverted from the main wellbore or another lateral wellbore. The lateral wellbores are typically formed by positioning one or more deflector assemblies at desired locations in the main wellbore (e.g., an open hole section or cased hole section) with a running tool. The deflector assemblies are often laterally and rotationally fixed within the main wellbore using a wellbore anchor, and then used to create an opening in the casing, wherein thereafter the later wellbore may be drilled to depth. BRIEF DESCRIPTION Reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which: FIG. 1 illustrates a schematic view of a well system designed, manufactured and operated according to one or more embodiments disclosed herein; FIGS. 2A through 2K illustrate a downhole isolation tool designed, manufactured and/or operated according to one or more embodiments of the disclosure; FIGS. 3A through 3K illustrate a downhole isolation tool designed, manufactured and/or operated according to one or more alternative embodiments of the disclosure; and FIGS. 4A through 4D illustrate a downhole isolation tool designed, manufactured and/or operated according to one or more alternative embodiments of the disclosure. DETAILED DESCRIPTION In the drawings and descriptions that follow, like parts are typically marked throughout the specification and drawings with the same reference numerals, respectively. The drawn figures are not necessarily to scale. Certain features of the disclosure may be shown exaggerated in scale or in somewhat schematic form and some details of certain elements may not be shown in the interest of clarity and conciseness. The present disclosure may be implemented in embodiments of different forms. Specific embodiments are described in detail and are shown in the drawings, with the understanding that the present disclosure is to be considered an exemplification of the principles of the disclosure, and is not intended to limit the disclosure to that illustrated and described herein. It is to be fully recognized that the different teachings of the embodiments discussed herein may be employed separately or in any suitable combination to produce desired results. Unless otherwise specified, use of the terms “connect,” “engage,” “couple,” “attach,” or any other like term describing an interaction between elements is not meant to limit the interaction to a direct interaction between the elements, and may also include an indirect interaction between the elements described. Unless otherwise specified, use of the terms “up,” “upper,” “upward,” “uphole,” “upstream,” or other like terms shall be construed as generally away from the bottom, terminal end of a well; likewise, use of the terms “down,” “lower,” “downward,” “downhole,” “downstream,” or other like terms shall be construed as generally toward the bottom, terminal end of a well, regardless of the wellbore orientation. Use of any one or more of the foregoing terms shall not be construed as denoting positions along a perfectly vertical axis. Unless otherwise specified, use of the term “subterranean formation” shall be construed as encompassing both areas below exposed earth and areas below earth covered by water, such as ocean or fresh water. The present disclosure is based, at least in part, on a recognition that current downhole isolation tools have a difficulty and/or inability to allow for fluid flow circulation around the downhole isolation tool prior to setting the anchoring/sealing subassembly located there above. The present disclosure has further recognized that current downhole isolation tools have a difficulty and/or inability to close and isolate one or more fluid flow circulation ports of the downhole isolation tool after the anchoring/sealing subassembly located there above has been set. Accordingly, the present disclosure has developed an improved downhole isolation tool that allows for fluid flow circulation around the downhole isolation tool as it is being run-in-hole (e.g., using one or more fluid flow ports connecting a fluid passageway and exterior surface of the downhole isolation tool), but allows for closing (e.g., hydraulically closing) the one or more fluid flow ports using an isolation sleeve after the anchoring/sealing subassembly has been set. The improved downhole isolation tool additionally includes a sacrificial plug member that prevents fluid flow through the fluid passageway as the downhole isolation tool is being run-in-hole (e.g., forcing the fluid flow circulation around the downhole isolation tool via the one or more fluid flow ports)