CX-000855: Categorical Exclusion Determination

25A5208 - Low-contact Drilling Technology to Enable Economical Engineered Geothermal System WellsCX(s) Applied: B3.6Date: 01/15/2010Location(s): ColoradoOffice(s): Advanced Research Projects Agency - Energy

Office of NEPA Policy and Compliance

January 15, 2010
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25A5208 - Low-contact Drilling Technology to Enable Economical Engineered Geothermal System Wells
CX(s) Applied: B3.6
Date: 01/15/2010
Location(s): Colorado
Office(s): Advanced Research Projects Agency - Energy

This project will develop a revolutionary drilling technology to enable rapid and sustained penetration of ultra-hard rock formations that are economically prohibitive to drill with mechanical drill bits. The development plan moves from the current lab demonstration system to a 4000 foot field demonstration well after 2 years and a 15000 foot geothermal demonstration well after 3 years.

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