Development of high-temperature acoustic instrumentation for characterization of hydraulic fractures in dry hot rock. [Downhole geophone sonde]

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The primary objectives of the post hydraulic fracture experiments in Geothermal Test Hole No. 2 are to study methods of measuring the location, orientation, and shape of the crack and to determine the stability of pressurized fracture systems. Detection of fracture dimensions and orientation of the geothermal reservoir is important for creating and understanding the operation of a dry hot rock energy-extraction system. These objectives require development of downhole instrumentation capable of characterization of hydraulic-fracture systems in high-temperature and high-pressure borehole environments. The development of the downhole instrumentation must emphasize reliability of measuring devices and electromechanical components to function properly ... continued below

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Medium: P; Size: Pages: 15

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Dennis, B. R.; Hill, J. H.; Stephani, E. L. & Todd, B. E. January 1, 1976.

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Description

The primary objectives of the post hydraulic fracture experiments in Geothermal Test Hole No. 2 are to study methods of measuring the location, orientation, and shape of the crack and to determine the stability of pressurized fracture systems. Detection of fracture dimensions and orientation of the geothermal reservoir is important for creating and understanding the operation of a dry hot rock energy-extraction system. These objectives require development of downhole instrumentation capable of characterization of hydraulic-fracture systems in high-temperature and high-pressure borehole environments. The development of the downhole instrumentation must emphasize reliability of measuring devices and electromechanical components to function properly at borehole temperatures of 250/sup 0/C and pressures of 690 bars (10,000 psi).

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Medium: P; Size: Pages: 15

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  • 22. international instrumentation of the Instrument Society of America, San Diego, CA, USA, 25 May 1976

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  • Report No.: LA-UR-76-493
  • Report No.: CONF-760513-2
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 7196160
  • Archival Resource Key: ark:/67531/metadc1443148

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  • January 1, 1976

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  • Feb. 10, 2019, 8:45 p.m.

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  • March 8, 2019, 7 p.m.

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Dennis, B. R.; Hill, J. H.; Stephani, E. L. & Todd, B. E. Development of high-temperature acoustic instrumentation for characterization of hydraulic fractures in dry hot rock. [Downhole geophone sonde], article, January 1, 1976; New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1443148/: accessed March 24, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.