Description:
Injection of steam condensate back into the
Geysers reservoir produces shifts in the
chemistry of produced steam at nearby wells.
Specifically, these effects include: 1) changes
in the spacial variation of non-condensible
gas/steam ratio; 2) changes in the 18 concentrations of stable isotopes 0 and
deuterium; 3) shifts in the abundance of gas
species Ar, N2 and NH3, and 4) changes in
calculated gas geothermometers and steam
saturation factors. This geochemical
information, when combined with other reservoir
data, has been used to assist in the targeting
of new injection wells.
