Acoustic emission measurement of geothermal reservoir cracks in Takinoue (Kakkonda) field, Japan

Crack extension caused by a shut-down operation in production wells in Takinoue geothermal power plant, Iwate Prefecture, Japan, has been successfully measured by an acceleration-sensitive long-distance acoustic emission measurement technique. The distribution and activity of subsurface cracks in a...

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Bibliographic Details
Published inGeothermics. Vol. 14, no. 4, pp. 525-538. 1985 Vol. 14; no. 4; pp. 525 - 538
Main Authors Niitsuma, H, Nakatsuka, K, Chubachi, N, Yokoyama, H, Takanohashi, M
Format Book Chapter
LanguageEnglish
Published 01.01.1985
Subjects
Japan
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Summary:Crack extension caused by a shut-down operation in production wells in Takinoue geothermal power plant, Iwate Prefecture, Japan, has been successfully measured by an acceleration-sensitive long-distance acoustic emission measurement technique. The distribution and activity of subsurface cracks in a geothermal reservoir can be determined by the combined procedure of the pressure build-up test and AE measurements. The feasibility and importance of the measurements are demonstrated by AE data and their interpretation.
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ISSN:0375-6505