Production/injection characteristics of slim hole and large-diameter wells at the Sumikawa Geothermal Field, JP

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Production and injection data from slim holes and large-diameter wells at the Sumikawa Geothermal Field, Japan, were analyzed to determine the effect of wellbore diameter on (1) the productivity/injectivity indices, and (2) on the discharge rate. The injectivity indices for Sumikawa boreholes do not depend on borehole diameter in any systematic manner; furthermore, the productivity indices (for boreholes with liquid feeds) are more or less equal to the injectivity indices. For boreholes with liquid feed zones, discharge rates scale with diameter according to a relationship previously presented by Pritchett. Pritchett's scaling rule does not appear to apply to discharge data ... continued below

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31-39

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Garg, Sabody K. & Combs, Jim January 26, 1995.

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Production and injection data from slim holes and large-diameter wells at the Sumikawa Geothermal Field, Japan, were analyzed to determine the effect of wellbore diameter on (1) the productivity/injectivity indices, and (2) on the discharge rate. The injectivity indices for Sumikawa boreholes do not depend on borehole diameter in any systematic manner; furthermore, the productivity indices (for boreholes with liquid feeds) are more or less equal to the injectivity indices. For boreholes with liquid feed zones, discharge rates scale with diameter according to a relationship previously presented by Pritchett. Pritchett's scaling rule does not appear to apply to discharge data from boreholes with two-phase feed zones; however, discharge characteristics of slim holes with two-phase feed zones can be used to infer production rates from large-diameter two-phase geothermal wells.

Physical Description

31-39

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  • Proceedings, Twentieth Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, CA, January 24-25, 1995

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  • Report No.: SGP-TR-150-6
  • Grant Number: None
  • Office of Scientific & Technical Information Report Number: 889299
  • Archival Resource Key: ark:/67531/metadc875277

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  • January 26, 1995

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  • Sept. 21, 2016, 2:29 a.m.

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  • Nov. 30, 2016, 6:28 p.m.

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Garg, Sabody K. & Combs, Jim. Production/injection characteristics of slim hole and large-diameter wells at the Sumikawa Geothermal Field, JP, article, January 26, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc875277/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.