Evaluation of testing and reservoir parameters in geothermal wells at Raft River and Boise, Idaho

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Evaluating the Raft River and Boise, Idaho, resources by pump and injection tests requires information on the geology, geochemistry, surficial and borehole geophysics, and well construction and development methods. Nonideal test conditions and a complex hydrogeologic system prevent the use of idealized mathematical models for data evaluation in a one-phase fluid system. An empirical approach is successfully used since it was observed that all valid pump and injection well pressure data for constant discharge tests plotted as linear trends on semilogarithmic plots of borehole pressure versus time since pumping or injection began. Quantification of the pressure response prior to 600 ... continued below

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Pages: 4

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Allman, D.W.; Goldman, D. & Niemi, W.L. January 1, 1979.

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Description

Evaluating the Raft River and Boise, Idaho, resources by pump and injection tests requires information on the geology, geochemistry, surficial and borehole geophysics, and well construction and development methods. Nonideal test conditions and a complex hydrogeologic system prevent the use of idealized mathematical models for data evaluation in a one-phase fluid system. An empirical approach is successfully used since it was observed that all valid pump and injection well pressure data for constant discharge tests plotted as linear trends on semilogarithmic plots of borehole pressure versus time since pumping or injection began. Quantification of the pressure response prior to 600 minutes is not always possible. Short-duration (< 24-hour) injection or pump tests are conducted with the drilling rig equipment, and long-duration (21-day) injection and pump tests are then conducted with the permanent pumping facilities. Replicate instrumentation for pressure, temperature, and flow rates are necessary to ensure quality data. Water quality and monitor well data are also collected.

Physical Description

Pages: 4

Notes

Dep. NTIS, PC A02/MF A01.

Source

  • Geothermal Resources Council annual meeting, Reno, NV, USA, 24 Sep 1979

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  • Report No.: CONF-790906-23
  • Grant Number: EY-76-C-07-1570
  • Office of Scientific & Technical Information Report Number: 5905776
  • Archival Resource Key: ark:/67531/metadc1098492

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1979

Added to The UNT Digital Library

  • Feb. 18, 2018, 3:59 p.m.

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  • March 20, 2018, 8:32 p.m.

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Allman, D.W.; Goldman, D. & Niemi, W.L. Evaluation of testing and reservoir parameters in geothermal wells at Raft River and Boise, Idaho, article, January 1, 1979; United States. (digital.library.unt.edu/ark:/67531/metadc1098492/: accessed May 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.