Patent ID: 11931822
Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
Field: Civil engineering (Other fields)
Classification: CPC B  C  E | IPC B  C  E

Claim 16:
17. A system, comprising:
a welding tool having:
a tool housing configured to receive a thermite mixture;
a thermite igniter configured to selectively ignite the thermite mixture in the tool housing to form a molten metal; and
a nozzle coupled to the tool housing and comprising an inlet region, an outlet region, a flow path from the inlet region to the outlet region, and an outer wall disposed about the flow path, wherein the outlet region has an annular opening, wherein an inner surface of the outer wall has a first taper and an outer surface of the outer wall has a second taper, wherein the first and second tapers increase in width in a downstream direction from the inlet region toward the outlet region, wherein the inlet region of the nozzle is configured to receive the molten metal from the tool housing and direct the molten metal from the annular opening of the nozzle to a desired annular-shaped region.