Method of increasing ph of high-density brines

Details Method of increasing ph of high-density brines Method of increasing ph of high-density brines

C - Chemistry, Metallurgy

09

K

C09K 8/04 (2006.01) C09K 8/54 (2006.01) C23F 11/04 (2006.01) E21B 41/02 (2006.01)

Patent

CA 2452430

It has been discovered that carbonate powders and bicarbonate powders are useful to increase the pH and corrosion resistance of high-density brines, such as zinc bromide brines, without significantly reducing their densities. The carbonates and/or bicarbonates should be water-soluble and may be sodium, potassium, magnesium and/or ammonium carbonates and/or bicarbonates and the like. The carbonates and/or bicarbonates are easily added in powder or other finely divided solid form.

On a découvert que des poudres de carbonate et des poudres de bicarbonate permettent d'augmenter le pH et la résistance à la corrosion de saumures haute densité, comme les saumures de bromure de zinc, sans réduire notablement leur densité. Les carbonates ou les bicarbonates doivent être solubles dans l'eau et peuvent être des carbonates ou des bicarbonates de sodium, de potassium, de magnésium ou d'ammonium et des produits similaires. L'ajout de ces carbonates ou bicarbonates se fait aisément sous la forme de poudre ou sous une autre forme solide finement divisée.

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