A sensitivity study of the economic parameters for the Geysers Geothermal Field, California
This paper analyzes the sensitivity of the revenue to be derived by a developer at The Geysers to the variations in fifteen most important variables. The ''cost'' variables considered were drilling cost per well, redrilling cost per well, facilities cost per drilled well, facilities cost per redrilled well, gathering system cost per production well, disposal system cost per injection well and operating cost per well. The ''rate'' variables considered were deliverability decline rate, rate of drilling success, rate of redrilling success; rate of well loss per year due to mechanical causes, plant factor, steam price escalation rate, inflation rate and discount rate. Harmonic decline in well deliverability was assumed, based on the observed production decline and reported theoretical results. The results showed that cumulative revenue is most sensitive to the drilling cost per well among the cost variables, and to the steam price escalation rate among the rate variables.
- Research Organization:
- Geothermex, Inc., Berkeley, California
- OSTI ID:
- 5052997
- Journal Information:
- Trans. - Geotherm. Resour. Counc.; (United States), Journal Name: Trans. - Geotherm. Resour. Counc.; (United States) Vol. 6; ISSN TGRCD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
150500* -- Geothermal Energy-- Economics
Industrial
& Business Aspects
CALIFORNIA
COST
DRILLING
ECONOMICS
FEDERAL REGION IX
GEOTHERMAL FIELDS
GEOTHERMAL WELLS
GEYSERS GEOTHERMAL FIELD
NORTH AMERICA
PARAMETRIC ANALYSIS
PRICES
PRODUCTION
SENSITIVITY ANALYSIS
USA
WELL DRILLING
WELLS