Brine treatment test for reinjection on Cerro Prieto geothermal field

Journal Article · Sun Jan 01 00:00:00 EST 1989 · Geothermics; (USA)

DOI:https://doi.org/10.1016/0375-6505(89)90021-7· OSTI ID:5276507

Hurtado, R; Mercado, S; Gamino, H ^[1]

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1. Departamento de Geotermia, Division de Fuentes de Energia, Instituto de Investigaciones Electricas, Justo Sierra y Herreros Sur 2098-Altos C.P. 21020, Mexicali, B.C. (MX)

Reinjection of disposal brine from the Cerro Prieto Geothermal Power Plant System is attractive mainly because, on top of solving the brine disposal problem, it may significantly contribute to extend the reservoir useful lifetime, through thermal and hydraulic recharge. Because the high concentration of colloidal silica in the disposal brine, laboratory and pilot plant tests were conducted in order to develop the brine treatment process. Addition of 20-40 mg/1 lime to flashed and aged brine for 10-20 minutes yields a clarified brine relatively low in suspended solids (10-30 mg/1) when the over flow rate is 38.5 1/min-m/sup 2/. 1.1 mills/kWh was the estimated cost for treatment of 800 kg/s of separated brine from the Cerro Prieto I power station.

• OSTI ID: 5276507
• Journal Information: Geothermics; (USA), Vol. 18:1; ISSN 0375-6505
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
BRINES
CHEMICAL COMPOSITION
FLUID FLOW
GEOTHERMAL FIELDS
HYDRAULIC FRACTURING
INJECTION WELLS
PILOT PLANTS
SILICA
WASTE DISPOSAL
CHALCOGENIDES
COMMINUTION
FRACTURING
FUNCTIONAL MODELS
MANAGEMENT
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
SILICON COMPOUNDS
SILICON OXIDES
WASTE MANAGEMENT
WELLS
150800* - Geothermal Power Plants
150302 - Geothermal Exploration & Exploration Technology- Geochemical Techniques & Surveys