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The Geology, Mineralogy and Geothermometry of the Broadlands Geothermal Field, Taupo Volcanic Zone, New Zealand

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thesis
posted on 08.11.2021, 07:53 by Browne, Patrick Richard Lee

Following the commissioning of the Wairakei geothermal power station, several areas in the Rotorua-Taupo Volcanic Zone were investigated for their power-producing potential. One of these was the Broadlands district, where a resistivity survey had located a sizeable area of subsurface water. The first hole, east of the Waikato River (Fig. 2), was drilled in late 1965, but although the temperature at hole bottom is 278 degrees, rock permeability is low and the bore is a poor steam producer. However, further drillholes (Br 2, 3 and 4) in the Ohaki area tapped good supplies of high temperature water and prompted a fullscale scientific and exploratory drilling programme. This was completed in mid-1971 after 25 holes had been drilled and it was estimated that the field could produce about 150 megawatts of electricity.

History

Copyright Date

01/01/1973

Date of Award

01/01/1973

Publisher

Te Herenga Waka—Victoria University of Wellington

Rights License

Author Retains Copyright

Degree Discipline

Geology

Degree Grantor

Te Herenga Waka—Victoria University of Wellington

Degree Level

Doctoral

Degree Name

Doctor of Philosophy

Victoria University of Wellington Item Type

Awarded Doctoral Thesis

Language

en_NZ

Victoria University of Wellington School

School of Geography, Environment and Earth Sciences

Advisors

Challis, G A; CoIe, J W; Clark, R H