Vapour generation in hot permeable rock through injection of water

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We present a non-linear model to describe vapor generation in a hot, permeable rock through injection of water. We develop similarity solutions describing the steady injection of fluid from a line source. A systematic parameter study has shown that, with other parameters fixed, as (1) the reservoir pressure increases, the mass fraction vaporized decreases; (2) the reservoir temperature increases, the mass fraction vaporized increases; (3) as the mass injection rate increases, the mass fraction vaporized decreases; and (4) as the porosity increases, the mass fraction vaporized decreases. We then present similarity solutions which describe injection from (1) a point source, ... continued below

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49-53

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Fitzgerald, Shaun D. & Woods, Andrew W. January 1, 1992.

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Description

We present a non-linear model to describe vapor generation in a hot, permeable rock through injection of water. We develop similarity solutions describing the steady injection of fluid from a line source. A systematic parameter study has shown that, with other parameters fixed, as (1) the reservoir pressure increases, the mass fraction vaporized decreases; (2) the reservoir temperature increases, the mass fraction vaporized increases; (3) as the mass injection rate increases, the mass fraction vaporized decreases; and (4) as the porosity increases, the mass fraction vaporized decreases. We then present similarity solutions which describe injection from (1) a point source, with the mass flux injected proportional to t{sup 1/2}; and (2) a planar source, with the mass flux injected proportional to t{sup -1/2}, where t is the time of injection. These results suggest that for steady injection, the vapor production gradually increases for injection from a point source, and gradually decreases for planar injection. We confirm this prediction with numerical calculations describing the vapor production resulting from steady injection from line, point and planar sources.

Physical Description

49-53

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  • Seventeenth Workshop on Geothermal Reservoir Engineering: Proceedings, Stanford University, Stanford, CA, January 29-31, 1992

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  • Report No.: SGP-TR-141-9
  • Grant Number: None
  • Office of Scientific & Technical Information Report Number: 888657
  • Archival Resource Key: ark:/67531/metadc885280

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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, 1992

Added to The UNT Digital Library

  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 2, 2016, 6:08 p.m.

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Fitzgerald, Shaun D. & Woods, Andrew W. Vapour generation in hot permeable rock through injection of water, article, January 1, 1992; United States. (digital.library.unt.edu/ark:/67531/metadc885280/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.