Methods of Coping with Silica Deposition - The PNOC Experience

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Conference Paper: Methods of Coping with Silica Deposition - The PNOC Experience

Abstract
Several methods of coping with silica deposition from geothermal waters have been undertaken by PNOC-EDC to maximize power output from these fluids. Initially, the problem of amorphous silica deposition in surface pipelines and the reinjection well was prevented by operating the production separators at pressures higher or equal to amorphous silica saturation. However, increasing demands for additional power and stringent environmental controls have dictated the need to find alternative methods of coping with silica deposition. Several options have been studies and tested to be able to optimize fluid utilization for production. These include: acid treatment, polymerization and deposition of silica in surface ponds or sumps, and chemical inhibition. As each brine is unique, methodologies used for mitigation of the silica problem have been varied.

Authors 
M.N.R. Candelaria, S.E. Garcia, A.D.J. Baltazar, Jr., R.P. Solis, A.C. Cabel Jr., J.B. Nogara, R.L. Reyes and and O.T. Jordan






Conference 
GRC Annual Meeting; Portland, OR; 1996/09/29


Published 
Geothermal Resources Council, 1996





DOI 
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Online 
Internet link for Methods of Coping with Silica Deposition - The PNOC Experience

Citation

M.N.R. Candelaria, S.E. Garcia, A.D.J. Baltazar, Jr., R.P. Solis, A.C. Cabel Jr., J.B. Nogara, R.L. Reyes, and O.T. Jordan. 1996. Methods of Coping with Silica Deposition - The PNOC Experience. In: GRC Transactions. GRC Annual Meeting; 1996/09/29; Portland, OR. Davis, CA: Geothermal Resources Council; p. 661-672