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

Claim 0:
1. A method of drilling and lining a wellbore, comprising:
attaching a drilling assembly to a tubular, wherein said tubular has a eutectic alloy layer around an outer surface of a top of the tubular and said eutectic alloy layer is a conical wedge shape;
drilling a length of the wellbore using said tubular with the drilling assembly;
attaching with a hanger said tubular to a surrounding tubing string disposed in the wellbore;
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; and
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, wherein said solidified alloy forms an airtight seal in an annular space between said tubular and an outer tubing string disposed in the wellbore.