| Title | Utilisation of Acidic Geothermal Well Fluids: Progress to 2002 |
|---|---|
| Authors | K. Lichti, A. Klumpers & N. Sanada |
| Year | 2003 |
| Conference | New Zealand Geothermal Workshop |
| Keywords | |
| Abstract | Direct utilisation of acidic two-phase geothermal well fluids for power generation is feasible using present day technology so long as the initial downhole and production water pH is > 3. The corrosion can be controlled by pH adjustment, through for example, injection of NaOH or alternatively corrosion resistant alloy casing can be used in the upper part of the well. Superheated steam carrying HCl gas can be treated at or near the surface by pH adjustment to control corrosion. This paper gives a summary of recent progress and problems encountered in international demonstration plant and an update on work in laboratory pressure vessels in New Zealand. |