Proceedings of the 6th New Zealand Geothermal Workshop 1985. Problems of pipeline scaling in sodium-bicarbonate dominated geothermal fluids : possibility of alternative method to transfer energy for multi-utilisation. New Zealand Geothermal Workshop [7-9 Nov. 1984, New Zealand].

Ratanasthien, Benjavun.

[1984]

CIENA
171

0-86869-056-2

The problems are discussed of utilizing sodium-bicarbonate dominated geothermal fluids which cause rapid scaling in pipelines and gate valves of production wells whilst chloride-dominated geothermal fluids produce silica scaling mainly in instruments and reinjections wells. The pipeline scaling causes reduction of the geothermal energy output due to the blockage of the passageways for steam and hot water, which makes drilling of new production wells uneconomic. In San Kamphaeng and Fang geothermal systems, Changwat Chiang Mai, Thailand and Chingshui geothermal systems, Taiwan, the chemistry of geothermal fluids is similar with regard to high ph sodium-bicarbonate dominated water, and thus pipeline scaling is a continuing problem. For multi-utilization, the possibility of alternative methods of transferring the energy from underground by means of heat pipes and thermosyphons is discussed.

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TAILANDIA; ENERGIA GEOTERMICA; FLUIDOS GEOTERMICOS; TUBERIAS; DESOXIDACION;