Hydrologic changes at Tauhara geothermal field

by R. G. Allis

Publisher: Geophysics Division, Dept. of Scientific and Industrial Research in Wellington, N.Z

Written in English
Published: Pages: 46 Downloads: 725
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Places:

  • New Zealand,
  • Tauhara Region.

Subjects:

  • Hydrology -- New Zealand -- Tauhara Region.,
  • Geothermal resources -- New Zealand -- Tauhara Region.

Edition Notes

Bibliography: p. 44-46.

Statementby R.G. Allis.
SeriesReport / Geophysics Division,, no. 193, Report (New Zealand. Geophysics Division) ;, no. 193.
Classifications
LC ClassificationsGB823 .A44 1983
The Physical Object
Pagination46 p. :
Number of Pages46
ID Numbers
Open LibraryOL2785420M
LC Control Number83211192

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The use of steam from the field has had a number of visible effects on the local environment. Visible geothermal activity has increased (due to changes in the water table / water pressure allowing more steam to be created underground, upsurging at places like Craters of the Moon), while there has also been some land subsidence and reduction in steam volumes from the field after some decades of. While the Beowawe geothermal field is characterized by remarkably high temperatures ( °C at a depth of only km; Zoback, ) and shallow heat flow (> mW/m 2; Olmsted and Rush, ), it is apparently not magma related, based on the absence of Quaternary volcanic rocks (Coolbaugh et al., ) and lack of enrichment in mantle.

Hydrologic changes at Tauhara geothermal field by R. G. Allis Download PDF EPUB FB2

63 heedings 18th NZ Geothermal Workshop CHANGES IN SHALLOW HYDROLOGY OF THE TAUHARA GEOTHERMAL FIELD C. BROMLEY AND R.B. GLOVER Wairakei Research Centre, IGNS, Taupo, NZ SUMMARY - The shallow hydrology at Tauhara has been affected, in the north, by rainfall recharge (with about a.

c W Proceedings Eighth Workshop Geothermal Reservoir Engineering Stanford Universi~, Stanford, California, Oecember SCP-TR HYDROLOGIC CHANGES AT TAUHARA FIELD DUE TO EXPLOITATION OF WAIRAKEI FIELD R.G. Allis Geophysics Division, D.S.I.R., Wairakei, New Zealand.

ABSTRACT The major thermal areas of Tauhara field are. CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): SUMMARY- The shallow hydrology at Tauhara has been affected, in the north, by rainfall recharge (with about a &month response lag), a steady 1 to 2 m per decade drawdown, and temperature changes from a steam heating thermal pulse caused by deep pressure drawdown.

Chemical and isotopic changes in the hydrology of the tauhara geothermal field due to exploitation at wairakei.

Author links open Depressurisation of the Tauhara field due to massive withdrawal of deep chloride water from the adjacent Wairakei field for geothermal power has caused considerably hydrological and chemical changes at Tauhara Cited by: We provide information on new areas of drilling exploration in the west of the Wairakei Geothermal Field and on the first production-focused drilling in 40 years at the Tauhara Geothermal : Christopher Bromley.

Throughout the history of geothermal development at Wairakei–Tauhara there have been significant changes in water levels, temperature and chemistry of some of the groundwater aquifers that are overlying these producing geothermal aquifers and steam zones (Allis,Allis, ).These changes have been most notable in the Eastern Borefield and Alum Lakes area at Wairakei, and in.

The Tauhara Geothermal Field has a total surface area of 50 km² (Rosenberg et al., ) and is located within the Taupo Volcanic Zone in the central North Island, New Zealand, 3 km northeast of Lake Taupo (Fig.

The Waikato River borders the western side of the Tauhara field and Mt. Taupo Township is located in the heart of the Taupo Volcanic Zone (TVZ), in the North Island of New Zealand ().Taupo sits within the Wairakei (NE)–Tauhara (SW) geothermal system, which is delineated by the resistivity boundary shown in Fig.

Tauhara part of the connected fields has an upflow near Mt Tauhara and a shallow outflow to the south-west towards Lake Taupo.

Gravity changes in the northern and central parts of the Tauhara field for the period – (contour interval: 25 gal). (modified from Hunt et al., ) Figures - uploaded by Sadiq J. Zarrouk. Wairākei-Tauhara is a twin-lobed geothermal field on the northern edge of the Taupō caldera.

Isthmus has been involved with a number of new New Zealand geothermal power stations that have come into production during the last ten years on the Wairākei-Tauhara Field, including Tauhara I, a small, binary plant trialled on the Tauhara part of. and in the adjacent Tauhara field ( and. " Pony.

Hydrologic changes. a t. Tauhara. Field. DSIR. degassing, and/or geothermal system changes. These phenomena may also occur due to. Contact shares rose per cent to $, trimming their loss so far this year to about 10 per cent. Keen on geothermal. Contact, the country's second-largest energy retailer, operates a mix of.

Hydrothermal ecosystems are of high conservation and scientific value, but they are sensitive to external perturbations that result from development. This study examines the composition of vegetation at four plots at the Wairakei–Tauhara geothermal field, New Zealand, using the Scott height-frequency method, ground temperatures at and 1-m depth, soil pH, and photographic surveys.

An Assessment of Changes in Kunzea ericoides var. microflora and Other Hydrothermal Vegetation at the Wairakei–Tauhara Geothermal Field, New Zealand Article in.

The new surveys gave a better delineation of the field than earlier ones (Risk,Risk et al., ) and showed that the Wairakei Field is part of the much larger Wairakei–Tauhara geothermal system, the resistivity boundaries of which, derived from these surveys, are shown in Fig.

Contact Energy is drilling a series of appraisal wells on the Tauhara geothermal field as it builds towards a final investment decision for a new power station in The deep geothermal energy produced from Enhanced Geothermal System (EGS) has a great development prospect because of enormous potential and environmental friendliness.

EGS process involves a complex thermal-hydraulic process, and fractures in EGS are main channels for fluid flow and heat transfer, the understanding of which is crucial to the. HYDROGEOLOGY LECTURE NOTES PRINTED ON 5 MAY 1 Chapter 1 – Introduction to Hydrogeology The Properties of Water Pure water (H 2O) is: Clear, colorless - No discernable taste or smell - At 1 atmosphere.

changes in thehydrology of the Tauhara geothermal field due to exploitation at Wairakei. 15, Koga, A., Taguchi, S. and Mahon, W.A.J., The use of volatile constituents in geothermal fluids for assessing thetype, potential and near surface permeability of a geothermal system:The Broadlands geothermal area.

Bridget Y. Lynne, Michael Pender, Trystan Glynn-Morris, Fabian Sepulveda, Combining scanning electron microscopy and compressibility measurement to understand subsurface processes leading to subsidence at Tauhara Geothermal Field, New Zealand, Engineering Geology, /,(), ().

Changes in fluid temperature within the geothermal reservoir are of vital importance in managing and guiding future development of a geothermal field. After drilling and output testing, a geothermal well is generally left for several weeks for the temperatures of the wellbore fluid to stabilize and achieve thermal equilibrium with the.

Thermal infrared imaging of geothermal environments by UAV (unmanned aerial vehicle) Abdul Nishar, a Steve Richards, b Dan Breen, a John Robertson, a Barbara Breen a. a School of Applied Sciences, AUT University, Auckland, New Zealand.

b Poseidon Consulting Ltd., Taupo, New Zealand. McNamara, D.; Massiot, C.; Lewis, B. A structural review of Wairakei-Tauhara Geothermal Field. Lower Hutt, N.Z.: GNS Science. GNS Science report /03 20 p. Abstract: Understanding of the structural framework of the Taupo Volcanic Zone (TVZ), Taupo Rift, and the Wairakei-Tauhara Geothermal Field has evolved over time.

Initial geophysical surveys of the TVZ determined it to be a. Aerial TIR surveys conducted inand at the Ohaaki Geothermal Field, New Zealand, are compared and interpreted with respect to such changes. These may be caused by natural. could be tomorrow’s geothermal industry technology. A few of these developments are briefly mentioned below to stimulate thought about geothermal development over the next 30 – 50 years.

Vertical and Horizontal Drilling Most wells at Wairakei field are less than. geothermal energy in and around the Taupo township. The population of Taupo is approximat and considerably more during vacation periods. The township of Taupo is located over the south west corner of the Tauhara-Wairakei geothermal field.

There are over wells (Curtis, ) in. The analytical theory of porous horizontal aquifers is applied to the problem of pressure response of the Tauhara geothermal field to drawdown from Wairakei. In a ‘bounded’ model the Tauhara field is regarded as a sector from an axisymmetric solution in the horizontal plane, having a permeability contrast at the curved outer boundary.

Geothermal systems are dynamic entities in which the liquid and vapor phases of water are the main mobile constituents. In their natural state these are generally in a quasi steady-state condition, when considered over a long period of time (>1, years).

The Karaha–Talaga Bodas (K–TB) geothermal field was declared commercially operated in April with a capacity of 30 MW.

This geothermal field is located on a ridge trending north–south to the north of Mount Galunggung, West Java, Indonesia (Fig. 1).The first exploration program of the K–TB geothermal field was conducted in December by Karaha Bodas Company. Geothermal Conferenceincorporating the 4th New Zealand Geothermal Workshop, University of Auckland: Allis, R G; Hydrologic changes at Tauhara geothermal field, New Zealand.

DSIR Geophysics Division Report Allis, R G; The 9 April steam eruption at Craters of the Moon thermal area, Wairakei. DSIR. Coseismic and postseismic changes in water levels in wells are also common and generally fall in four categories: (1) Large (as much as 20 m), persistent, near‐field (perhaps changes at.

Bridget Y. Lynne, Michael Pender, Trystan Glynn-Morris and Fabian Sepulveda, Combining scanning electron microscopy and compressibility measurement to understand subsurface processes leading to subsidence at Tauhara Geothermal Field, New Zealand, Engineering Geology,(26), ().ISBN: OCLC Number: Notes: Shipping list no.: P.

Description: vi, 36 pages: color illustrations, color maps ; 28 cm.