Feasibility study and economic analysis of geothermal well drilling

This paper reports a comprehensive survey of well drilling time and cost. The models include both specific correlations on various types generalised for rough estimation. are derived from robust multivariable regression to minimise the residuals. Africa has highest construction cost component in United States lowest. Data regions compared with European World average data. Drilling Italy is similar Europe world averages. proposed model directly estimates be used fundamental research feasibility studies geothermal power plants applicable worldwide.