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Hot Dry Rock Geothermal Energy- Important Lessons From Fenton Hill
Abstract The concept of Hot Dry Rock (HDR) geotherm
The concept of Hot Dry Rock (HDR) geothermalenergy originated at Los Alamos National Laboratoryin the early 1970s, to exploit the heat contained inthose vast regions of the earth�s crust that contain nofluids in place�by far more widespread than naturalhydrothermal resources.Two separate HDR reservoirs were created in deep,hot crystalline rock, at the Fenton Hill HDR Test siteabout 40 miles west of Los Alamos. These reservoirs,at depths of 2800 m and 3500 m and temperatures of195°C and 235°C respectively, were created withtechnology that was rapidly evolving at the time.They were flow-tested for a period of almost a yeareach. Thermal power production ranged from 4 MWfor extended routine production intervals to as highas 10 MW for a 30-day period. The testing provedbeyond a doubt that it is technically feasible torecover useful amounts of thermal energy from HDR.From tracer testing of the deeper reservoir, it wasfound that the flow patterns became more diffusewith time, suggesting that more of the reservoir wasbeing accessed as flow continued�with flowdefinitely not tending toward short-circuiting, whichhad been a worry.The major finding of the work at Fenton Hill is thatan HDR reservoir should first be created from theinitial borehole, and then accessed by two productionboreholes. It is almost impossible to create aneffective system by drilling the boreholes first andthen trying to connect them by hydraulicpressurization.
o connect them by hydraulicpressurization.  +
Author Donald W Brown  +
Citation Donald W Brown. 2009. [[Hot Dry Rock Geothermal Energy- Important Lessons From Fenton Hill]]. In: Proceedings. 34th Workshop on Geothermal Reservoir Engineering; 2009; Stanford, CA. Stanford, CA: Stanford University; p. 139-142  +
Conference 34th Workshop on Geothermal Reservoir Engineering  +
Document type Conference Paper  +
Foaf/Page http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&ved=0CEAQFjAD&url=http://pangea.stanford.edu/ERE/pdf/IGAstandard/SGW/2009/brown.pdf&ei=BTDDUcOMF8GyyAHQn4DQCQ&usg=AFQjCNHzwqqfj_u5cqdel267nYqqUNthJQ&bvm=bv.48175248,d.aWc  +
Link http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&ved=0CEAQFjAD&url=http://pangea.stanford.edu/ERE/pdf/IGAstandard/SGW/2009/brown.pdf&ei=BTDDUcOMF8GyyAHQn4DQCQ&usg=AFQjCNHzwqqfj_u5cqdel267nYqqUNthJQ&bvm=bv.48175248,d.aWc  +
Name Hot Dry Rock Geothermal Energy- Important Lessons From Fenton Hill  +
Place Stanford, CA +
PublicationDate 2009  +
Publisher Stanford University  +
ReferenceGenre Geothermal  +
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Hot Dry Rock Geothermal Energy- Important Lessons From Fenton Hill + , Hot Dry Rock Geothermal Energy- Important Lessons From Fenton Hill + , Hot Dry Rock Geothermal Energy- Important Lessons From Fenton Hill + , Hot Dry Rock Geothermal Energy- Important Lessons From Fenton Hill + , Hot Dry Rock Geothermal Energy- Important Lessons From Fenton Hill +
Categories References , Geothermal References , Reference Materials
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"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by Semantic MediaWiki.
15:03:46, 22 May 2014  +
hide properties that link here 
Fenton Hill HDR Geothermal Area + , File:Fenton Hill Seismic Volume.pdf + , Valles Caldera - Redondo Geothermal Area + , Valles Caldera - Sulphur Springs Geothermal Area + ReferenceForBrown2009
Flow Test At Fenton Hill HDR Geothermal Area (Brown, 1994) + , Flow Test At Fenton Hill HDR Geothermal Area (Dash, Et Al., 1983) + , Micro-Earthquake At Fenton Hill HDR Geothermal Area (Brown, 2009) + Reference material
 
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