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

Claim 0:
1. A method of sealing a subsurface bore, the method comprising:
locating a volume of thermite in the bore at a first location;
locating a volume of alloy in the bore at a second location;
initiating reaction of the volume of thermite to generate heat and form thermite reaction products at the first location whereby heat energy is transferred from the reacting thermite to the second location to heat the volume of alloy; and
bringing the volume of 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 the thermite reaction products and the alloy combine and then cool and solidify to provide a bore-sealing plug including a barrier layer of solidified alloy above the solidified thermite reaction products.