Geothermal salinity control system

Details Geothermal salinity control system Geothermal salinity control system

1980-07-18

1985-01-08

Husar, Stephen F.

Power plants

Utilizing natural heat

Geothermal

606412, 165 45, F03G 704

Patent

active

044920830

ABSTRACT:
Highly saline geothermal brine, such as that produced from the lower geothermal reserve of the Salton Sea geothermal field, is diluted with non-geothermal water of much lower salinity in a mixing zone proximate the high temperature end of a geothermal power plant, and preferably down in the production well just above the production zone, so as to reduce the chloride salt content of the production brine to a level that is at or below the saturated level at reinjection temperatures, thereby preventing any material chloride salt scaling at any location in the plant through reinjection. The permanent cemented-in production casing in the well is protected against the corrosive effects of the hot production brine by means of a removable production liner that is generally coextensive with the casing. Said mixing zone is provided in the lower portion of the liner, and the liner establishes an annulus between it and the casing through which said non-geothermal water flows downwardly to the mixing zone so as to exclude the production brine from contact with the casing.

REFERENCES:
patent: 3846986 (1974-11-01), Anderson
patent: 4026111 (1977-05-01), Matthews
patent: 4043129 (1977-08-01), McCabe et al.
patent: 4211613 (1980-07-01), Meckler

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