Why is water injection necessary at The Geysers?
Geothermal Plant Water injection into geothermal systems has become a nearly universal and often required strategy at The Geysers for extended and sustained production of geothermal resources. For example, to reduce a trend of declining pressures and increasing non-condensable gas concentrations in steam produced operators have been injecting steam condensate, local rain and stream waters, and most recently treated wastewater piped to the field from neighboring communities. Figure 1. shows the injection pattern from two main sources of water , the Santa Rosa, California waste water pipeline ( approximately 11 millions gallons per day), and the Lake county, California waste water pipeline ( 7 millions gallons per day). Also shown on this figure are the seismic stations used to monitor the seismicity and the injection points. Figure 1. Location of water injection pipelines and injection points. Also shown are the locations of the seismic monitoring stations. Without this injected water t
