Mineral scaling in geothermal fields: A review
Geothermal power is an established energy source in several countries, for example New Zealand and Iceland. However the proposed geothermal operations in South Australia occurs at a much greater depth (5 km) and the heat source is radioactive decay rather than volcanism. A number of issues relating...
Main Authors: | , , , , , |
---|---|
Other Authors: | |
Format: | Conference Object |
Language: | English |
Published: |
2010
|
Subjects: | |
Online Access: | http://hdl.handle.net/2440/65008 |
id |
ftunivadelaidedl:oai:digital.library.adelaide.edu.au:2440/65008 |
---|---|
record_format |
openpolar |
spelling |
ftunivadelaidedl:oai:digital.library.adelaide.edu.au:2440/65008 2023-05-15T16:49:52+02:00 Mineral scaling in geothermal fields: A review Ngothai, Y. Yanagisawa, N. Pring, A. Rose, P. O'Neill, B. Brugger, J. Australian Geothermal Energy Conference (3rd : 2010 : Adelaide, Australia) 2010 http://hdl.handle.net/2440/65008 en eng Geoscience Australia Record; 2010/35 Proceedings of the 2010 Australian Geothermal Energy Conference, 17-19 November 2010, Adelaide Convention Centre, Adelaide / H. Gurgenci and R. Weber (eds.): pp.405-409 http://hdl.handle.net/2440/65008 Ngothai, Y. [0000-0002-0199-4225] © Commonwealth of Australia, 2010 https://www.ga.gov.au/products/servlet/controller?event=GEOCAT_DETAILS&catno=71204 silica scaling calcite scaling metal sulphide scaling EGS HDR Conference paper 2010 ftunivadelaidedl 2023-02-05T19:33:25Z Geothermal power is an established energy source in several countries, for example New Zealand and Iceland. However the proposed geothermal operations in South Australia occurs at a much greater depth (5 km) and the heat source is radioactive decay rather than volcanism. A number of issues relating to the geochemistry of geothermal fluids are required to be considered and explored to ensure safe, economic energy production from geothermal fields. Low pH and saline waters, at temperatures much greater than 200oC, are highly corrosive, and it is vital to prevent the generation of scales as the brines are transported to the surface. This paper provides a review on silica, calcite and metal sulphide scaling at various geothermal fields. The solubility of silica and calcite as a function of temperature and/or pressure were discussed and how it affects scaling at various locations in the geothermal plant. Yung Ngothai, Norio Yanagisawa, Allan Pring, Peter Rose, Brian O'Neill and Joël Brugger Conference Object Iceland The University of Adelaide: Digital Library New Zealand |
institution |
Open Polar |
collection |
The University of Adelaide: Digital Library |
op_collection_id |
ftunivadelaidedl |
language |
English |
topic |
silica scaling calcite scaling metal sulphide scaling EGS HDR |
spellingShingle |
silica scaling calcite scaling metal sulphide scaling EGS HDR Ngothai, Y. Yanagisawa, N. Pring, A. Rose, P. O'Neill, B. Brugger, J. Mineral scaling in geothermal fields: A review |
topic_facet |
silica scaling calcite scaling metal sulphide scaling EGS HDR |
description |
Geothermal power is an established energy source in several countries, for example New Zealand and Iceland. However the proposed geothermal operations in South Australia occurs at a much greater depth (5 km) and the heat source is radioactive decay rather than volcanism. A number of issues relating to the geochemistry of geothermal fluids are required to be considered and explored to ensure safe, economic energy production from geothermal fields. Low pH and saline waters, at temperatures much greater than 200oC, are highly corrosive, and it is vital to prevent the generation of scales as the brines are transported to the surface. This paper provides a review on silica, calcite and metal sulphide scaling at various geothermal fields. The solubility of silica and calcite as a function of temperature and/or pressure were discussed and how it affects scaling at various locations in the geothermal plant. Yung Ngothai, Norio Yanagisawa, Allan Pring, Peter Rose, Brian O'Neill and Joël Brugger |
author2 |
Australian Geothermal Energy Conference (3rd : 2010 : Adelaide, Australia) |
format |
Conference Object |
author |
Ngothai, Y. Yanagisawa, N. Pring, A. Rose, P. O'Neill, B. Brugger, J. |
author_facet |
Ngothai, Y. Yanagisawa, N. Pring, A. Rose, P. O'Neill, B. Brugger, J. |
author_sort |
Ngothai, Y. |
title |
Mineral scaling in geothermal fields: A review |
title_short |
Mineral scaling in geothermal fields: A review |
title_full |
Mineral scaling in geothermal fields: A review |
title_fullStr |
Mineral scaling in geothermal fields: A review |
title_full_unstemmed |
Mineral scaling in geothermal fields: A review |
title_sort |
mineral scaling in geothermal fields: a review |
publishDate |
2010 |
url |
http://hdl.handle.net/2440/65008 |
geographic |
New Zealand |
geographic_facet |
New Zealand |
genre |
Iceland |
genre_facet |
Iceland |
op_source |
https://www.ga.gov.au/products/servlet/controller?event=GEOCAT_DETAILS&catno=71204 |
op_relation |
Geoscience Australia Record; 2010/35 Proceedings of the 2010 Australian Geothermal Energy Conference, 17-19 November 2010, Adelaide Convention Centre, Adelaide / H. Gurgenci and R. Weber (eds.): pp.405-409 http://hdl.handle.net/2440/65008 Ngothai, Y. [0000-0002-0199-4225] |
op_rights |
© Commonwealth of Australia, 2010 |
_version_ |
1766040047920873472 |