Patent ID: 11927065
Assignee: INTERWELL P&A AS
Field: Civil engineering (Other fields)
Classification: CPC E  F  Y | IPC E  F

Claim 0:
1. A well tool device for forming a permanent barrier in a well, comprising:
a housing in which a compartment is provided;
a pyrotechnic mixture provided within the compartment; and
an ignition device adapted to heating at least a part of the pyrotechnic mixture to an ignition temperature of the pyrotechnic mixture;
wherein the pyrotechnic mixture comprises a first metal and a metal oxide of a second metal;
wherein the housing comprises a lower housing section, an upper housing section, and an intermediate housing section connecting the lower housing section and the upper housing section;
wherein the lower housing section comprises a heat insulation material; and
wherein the intermediate housing section of the housing is made of the first metal.