Silica stabilization and reinjection for geothermal method and apparatus

Patent · Tue Mar 05 04:00:00 EST 1985

OSTI ID:5583299

Awerbuch, L; Rogers, A N

An improved method and apparatus for disposal of spent brine after the energy and mineral values have been extracted from the brine, taking advantage of the basic thermodynamic properties of suspended and dissolved scalars in geothermal fluids. A controlled portion of the extracted steam energy value from the brine is used to reheat spent brine before reinjection. The spent brine thereby ceases to be supersaturated with respect to solids, and stabilized silicas therein do not precipitate out and deposit themselves upon the entrance of a reinjection well. Means for using a controlled portion of the extracted steam energy from a plurality of serially connected flasher reactors is shown.

• Assignee: Electric Power Research Institute Inc.
• Patent Number(s): US 4502285
• OSTI ID: 5583299
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150600* -- Geothermal Energy-- Environmental Aspects
BRINES
CHALCOGENIDES
CHEMICAL REACTORS
DEMETALLIZATION
FLUIDS
GEOTHERMAL FLUIDS
GEOTHERMAL WELLS
MANAGEMENT
MINERALS
NATURAL STEAM
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PROCESSING
RECYCLING
SEPARATION PROCESSES
SILICA
SILICON COMPOUNDS
SILICON OXIDES
STABILIZATION
STEAM
WASTE MANAGEMENT
WASTE PROCESSING
WELLS