| Title | Silica Scaling Trial and Injection of Cold Separated Geothermal Water at Wairakei, New Zealand |
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| Authors | Ed Mroczek, Duncan Graham, Christine Siega, Scott Nicholson and Alex Urgel |
| Year | 2013 |
| Conference | New Zealand Geothermal Workshop |
| Keywords | silica, scaling, deposition, reinjection, Wairakei |
| Abstract | The depositional characteristics that might be associated with the injection of cold separated geothermal water (SGW) were investigated in a month long trial at the Wairakei geothermal field. This was achieved by passing 2000 m3 of aged and cooled SGW through a bed (250 mm diameter 4.2 m long pipe) packed with dacite chips 5-8 mm. No silica was deposited in the packed bed but |