Scale removal treatment

Details Scale removal treatment Scale removal treatment

E - Fixed Constructions

21

B

31/30

E21B 37/06 (2006.01) C02F 5/08 (2006.01) C02F 5/12 (2006.01) C09K 8/528 (2006.01) C23G 1/24 (2006.01)

Patent

CA 1248339

ABSTRACT OF THE DISCLOSURE A method for treating a subterranean forma- tion, or a well penetrating the formation, comprises injecting into the well an aqueous composition contain- ing an aminopolycarboxylic acid and a water-soluble organosilicon compound. By use of the method, scale is removed from well equipment and/or openings in the formation, and fine particles within the formation are stabilized to prevent their subsequent movement, resulting in increased, more stable fluid flow through the formation and well.

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