Patent ID: 11891876
Assignee: NESA ENERGY LLC
Field: Civil engineering (Other fields)
Classification: CPC E  F | IPC E  F

Claim 0:
1. A downhole tool for forming an annular barrier comprising:
a housing with a communication port and a disc port, wherein a rupture disc is configured to be positioned within the disc port;
a first sleeve configured to move within the housing, wherein in a first position the first sleeve is configured to cover the communication port and in a second position the first sleeve is configured to cover the disc port and expose the communication port;
a second sleeve configured to move within the housing, wherein the second sleeve is configured to move downhole to be positioned adjacent to the first sleeve, wherein when the second sleeve is positioned adjacent to the first sleeve the second sleeve covers the communication port;
a first wiper plug that is configured to move the first sleeve from the first position to the second position; and
a second wiper plug that is configured to move the second sleeve within the housing.