Geothermal Exploration At Akutan, Alaska- Favorable Indications For A High-Enthalpy Hydrothermal Resource Near A Remote Market

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Conference Paper: Geothermal Exploration At Akutan, Alaska- Favorable Indications For A High-Enthalpy Hydrothermal Resource Near A Remote Market

Abstract
In summer 2009, the City of Akutan completed an exploration program to characterize the geothermal resource and assess the feasibility of geothermal development on Akutan Island. Akutan Island, Alaska is home to North America's largest seafood processing plant. The City of Akutan and the fishing industry have a combined peak demand of ~7-8 MWe which is currently supplied by diesel fuel. The exploration program included practical access assessments, a geologic reconnaissance field study, soil and soil gas geochemical surveys, a satellite remote sensing study, a review of existing hot springs geochemistry data, a magnetotelluric (MT) survey, and a conceptual model analysis. Exploration data indicate a viable resource that could feasibly support planned development for power production and direct use applications. A shallow outflow resource of 155-180°C is likely to be accessible for development at Akutan. A deeper, hotter, upflow resource of >220°C has a greater access risk but will be targeted because of its potentially lower development cost. Alternatively, there is potential for an outflow zone that has greater resource risk but potentially greater access. Two slim-hole exploratory wells are targeted to investigate these reservoirs and determine their likelihood for development and two potential follow-up wells would characterize the potential for the outflow resource.

Authors 
A. Kolker, W. Cumming and P. Stelling








Published 
GRC, 2010





DOI 
Not Provided
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Citation

A. Kolker,W. Cumming,P. Stelling. 2010. Geothermal Exploration At Akutan, Alaska- Favorable Indications For A High-Enthalpy Hydrothermal Resource Near A Remote Market. In: (!) ; (!) ; (!) . (!) : GRC; p. (!)