geothermal salinity control system

Patent · Tue Jan 08 04:00:00 EST 1985

OSTI ID:5747539

McCabe, B C; Zajac, E

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.

• Assignee: Magma Power Co.
• Patent Number(s): US 4492083
• OSTI ID: 5747539
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150800 -- Geothermal Power Plants
150903* -- Geothermal Engineering-- Corrosion
Scaling & Materials Development
BRINES
CONTROL
DILUTION
FLUIDS
GEOTHERMAL FIELDS
GEOTHERMAL FLUIDS
GEOTHERMAL POWER PLANTS
GEOTHERMAL WELLS
POWER PLANTS
REINJECTION
SALINITY
SALTON SEA GEOTHERMAL FIELD
SCALE CONTROL
THERMAL POWER PLANTS
WELL CASINGS
WELLS