Patent ID: 11959353
Assignee: HALLIBURTON ENERGY SERVICES, INC.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 9:
10. The method of claim 9, wherein applying differential pressure to the sealing assembly to form multiple layers of seal to pressure seal the open-hole wellbore includes:
forming a first pressure seal by causing the first expandable sealing element or the second expandable sealing element to expand to contact the wall of the open-hole wellbore; and
forming a second pressure seal by causing the sealing mixture to be released from the container housing to contact the wall of the open-hole wellbore, wherein:
the differential pressure is received by the plurality of pistons to cause the first expandable sealing element or the second expandable sealing element to expand and to cause the sealing mixture to be released;
the multiple layers of seal include the first pressure seal and the second pressure seal; and
the at least two internal seals provide seals within the sealing assembly to prevent the sealing mixture from leaking, and to allow the sealing mixture to form the second pressure seal, after the plurality of pistons receive the applied differential pressure.