Patent ID: 11946331
Assignee: ISOL8 (HOLDINGS) LIMITED
Field: Civil engineering (Other fields)
Classification: CPC E  C | IPC C  E

Claim 23:
24. Downhole apparatus comprising:
a volume of thermite at a first location;
a volume of alloy at a second location; and
a thermite reaction initiator,
whereby initiating reaction of the volume of thermite generates heat and forms thermite reaction products at the first location whereby heat energy is transferred from the reacting thermite to the second location and heats the alloy to above the melting point of the alloy whereby the alloy becomes mobile and flows from the second location towards the first location and combines with the thermite reaction products, whereby on cooling the alloy and the thermite reaction products form a bore-sealing plug including a barrier layer of solidified alloy above the solidified thermite reaction products.