Proceedings of the 6th New Zealand Geothermal Workshop 1985. Fluid chemistry of the Ngawha reservoir. New Zealand Geothermal Workshop [7-9 Nov. 1984, New Zealand].

Sheppard, D.S.

[1984]

171
CIENA

0-86869-056-2

Analysis of fluids discharged from ten deep wells at Ngawha showed that the wells sampled a fluid which was compositionally rather uniform in all but gas component concentrations. Small variations in water chemistry indicate that waters are diluted in the east of the field and that higher level fluids leak into some wells dduring discharge. Solute geothermometers reflect the temperature measured in the production zones; higher temperatures (300°C) are indicated by gas ratios, and have been verified by measured temperatures in the deep well NG13. Calcite precipitation in flashing wells may be a problem during exploitation, expecially in wells with a lower gas content.

Presenta gráfs. y tbls.

NUEVA ZELANDIA; ENERGIA GEOTERMICA; FLUIDOS GEOTERMICOS; POZOS GEOTERMICOS; GEOQUIMICA; GASES;