USE OF NATURALLY-OCCURRING TRACERS TO MONITOR TWO-PHASE CONDITIONS IN THE COSO EGS PROJECT

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Conference Proceedings: USE OF NATURALLY-OCCURRING TRACERS TO MONITOR TWO-PHASE CONDITIONS IN THE COSO EGS PROJECT

Abstract
A dramatic decrease in the ratio of chloride to boron was observed in the liquid discharge of a well proposed for EGS development in the Coso geothermal field. The decrease appears to be related to the transformation of some feed zones in the well from liquid-dominated to vapor-dominated. High concentrations of boron are transported to the wellbore in the steam, where it fractionates to the liquid phase flowing in from liquid-dominated feed zones. The high-boron steam is created when the reservoir liquid in some of the feed zones boils with a steam fraction greater than 90%. Combination of boron from both phases into the liquid phase results in the Cl;B ratio dropping from 40 to as low as 20.

Authors 
Adams and M.C.








Published 
PROCEEDINGS, Twenty-Ninth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 26-28, 2004, 1/1/2004





DOI 
Not Provided
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Citation

Adams, M.C.. 1/1/2004. USE OF NATURALLY-OCCURRING TRACERS TO MONITOR TWO-PHASE CONDITIONS IN THE COSO EGS PROJECT. Proceedings of (!) ; (!) : PROCEEDINGS, Twenty-Ninth Workshop on Geothermal Reservoir Engineering Stanford University, Stanford, California, January 26-28, 2004.


Related Geothermal Exploration Activities
Activities (1)


Areas (1)
  1. Coso Geothermal Area
Regions (0)