Silica inhibition and blowdown evaporation (sibe) process

Details Silica inhibition and blowdown evaporation (sibe) process Silica inhibition and blowdown evaporation (sibe) process

F - Mech Eng,Light,Heat,Weapons

22

B

F22B 37/54 (2006.01) C23F 14/00 (2006.01) E21B 43/24 (2006.01) F22D 11/00 (2006.01)

Patent

CA 2641072

The invention relates to a method for producing steam from a silica containing feedwater. Feedwater containing silica is supplied to a boiler, generating a steam and a liquid blowdown. A silica desposition inhibitor is added to the feedwater prior to supplying the feedwater to the boiler. The liquid blowdown can be treated to produce a diluent water stream. The diluent water stream is added to the feedwater prior to supplying the feedwater to the boiler wherein the silica content of the diluent water stream is lower than the silica content of the feedwater to which it is added. The invention also relates to an installation adapted for implementing this method as well as to a method for extracting hydrocarbons from a subterranean formation making use of this method.

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