| 摘要 |
An exothermic well tool and method of use for the repair of failure spots along a section of a first tubular conduit, such as casing, are provided wherein the housing of the tool is heated to at least a temperature approximately in excess of that required to activate and melt an exothermic metal alloy composition and may include an ignitable starter fuel charge with a series of solid activation fuel charges spaced throughout the chamber. The tool may also include a length of a second tubular conduit for positioning around the exterior of the housing to define an annular area relative to the first tubular conduit for deposit of a low temperature metal alloy therein.
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