Method of thermally insulating wellbores during steam injection

Details Method of thermally insulating wellbores during steam injection Method of thermally insulating wellbores during steam injection

E - Fixed Constructions

21

B

166/35

E21B 36/00 (2006.01)

Patent

CA 1144063

METHOD OF THERMALLY INSULATING WELLBORES DURING STEAM INJECTION Abstract of the Invention A method of thermally insulating the borehole of a well in a thermal process for oil recovery by providing in the annular space between the casing and the well tubing a flowable, solid material having thermal insulating pro- perties, such as vermiculite or perlite. Removal of the material is by fluidization thereof.

361011

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