Method for reducing scale in geothermal systems

Details Method for reducing scale in geothermal systems Method for reducing scale in geothermal systems

1983-03-23

1985-04-30

Novosad, Stephen J.

Wells

Processes

E21B 4102

Patent

active

045138184

ABSTRACT:
A method for reducing deposition of scale in geothermal wellbores and geothermal flash steam plants is described. Naturally occurring brines containing different amounts of dissolved solids and having contrasting chemical behavior are blended in controlled proportions to obtain improved properties in the mixture insofar as deposition of scale is concerned. The invention improves the usability of hypersaline brines, containing substantial quantities of sodium chloride, for power generation by blending them with cooler more dilute brines containing dissolved bicarbonate. By mixing the two brines within calculable limits of their proportions in the total produced fluid, deposition of sodium chloride and carbonate scales is avoided in the wellbore and in the downstream power generation equipment.

REFERENCES:
patent: 3757516 (1973-09-01), McCabe

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