Patent ID: 11959365
Assignee: CONOCOPHILLIPS COMPANY
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 6:
7. A method of forming a seal between inner and outer tubular strings, comprising
attaching an inner tubular string having a layer of eutectic alloy to an outer tubular string, wherein said eutectic alloy is a conical wedge shape;
running a downhole heater into the wellbore until said heater is level with the top of said conical eutectic alloy wedge;
heating the upper portion of said eutectic alloy layer to form a molten alloy;
the lower portion of said conical eutectic alloy functioning as a cool zone to cool said molten alloy;
solidifying said molten alloy on the lower portion of said conical eutectic alloy wedge to form a seal between said inner tubular string and said outer tubular string; and
removing said downhole heater.