Method of thermally insulating a wellbore

Details Method of thermally insulating a wellbore Method of thermally insulating a wellbore

1979-10-01

1981-07-07

Novosad, Stephen J.

Wells

Processes

Heating, cooling or insulating

166 57, 166302, E21B 3600, E21B 4324

Patent

active

042769361

ABSTRACT:
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 properties, such as vermiculite or perlite. Removal of the material is by fluidization thereof.

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patent: 3722591 (1973-03-01), Maxson
patent: 3851704 (1974-12-01), Maxson et al.
Rose, The Condensed Chemical Dictionary, Fifth Edition, 1956, p. 915.
Perry, Robert H., Chemical Engineers Handbook, McGraw-Hill Book Co., Fifth Edition, 1973, pp. 20-64, 20-65.

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