A review of the UK Geothermal Hot Dry Rock R&D Programme

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Description

The UK Department of Energy's Geothermal Hot Dry Rock (HDR) Program was last reviewed in 1987/88, when a number of technical problems were identified. These related to the size of reservoir (heat exchanger), its thermal behavior (short circuits) and water losses. A program of work to address these problems was subsequently set up. This work has recently been reviewed. The main conclusions are: (1) a satisfactory procedure for creating a commercial-scale HDR reservoir has yet to be demonstrated; (2) there is a dearth of information on rock properties at the 6-7 km depths needed for a commercial reservoir; (3) a ... continued below

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29-34

Creation Information

Symons, Geoff D. & Clarke, John H. January 1, 1991.

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Description

The UK Department of Energy's Geothermal Hot Dry Rock (HDR) Program was last reviewed in 1987/88, when a number of technical problems were identified. These related to the size of reservoir (heat exchanger), its thermal behavior (short circuits) and water losses. A program of work to address these problems was subsequently set up. This work has recently been reviewed. The main conclusions are: (1) a satisfactory procedure for creating a commercial-scale HDR reservoir has yet to be demonstrated; (2) there is a dearth of information on rock properties at the 6-7 km depths needed for a commercial reservoir; (3) a satisfactory method of sealing short circuits has not yet been demonstrated; (4) although it is difficult to determine accurately the economics of HDR because of these technical uncertainties, it is believed that electricity from a commercial HDR power station is unlikely to be competitive with conventional means of generation in the short to medium term; (5) despite the earlier promise of the technology, HDR has been shown over the past two years to be still at an early stage of development and it is unlikely to attract private sector funding in the short term; and (6) participation in a joint European program offers the opportunity of resolving some of the technical uncertainties.

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29-34

Source

  • Proceedings, sixteenth workshop on geothermal reservoir engineering, Stanford University, Stanford, CA, January 23-25, 1991

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  • Report No.: SGP-TR-134-6
  • Grant Number: None
  • Office of Scientific & Technical Information Report Number: 887475
  • Archival Resource Key: ark:/67531/metadc885653

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  • January 1, 1991

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 7, 2016, 8:41 p.m.

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Symons, Geoff D. & Clarke, John H. A review of the UK Geothermal Hot Dry Rock R&D Programme, article, January 1, 1991; United States. (digital.library.unt.edu/ark:/67531/metadc885653/: accessed September 26, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.