Porosity and Permeability Evolution Accompanying Hot fluid Injection into Diatomite, SUPRI TR-123

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Description

An experimental study of silica dissolution was performed to probe the evolution of permeability and porosity in siliceous diatomite during hot fluid injection such as water or steam flooding. Two competing mechanisms were identified. Silica solubility in water at elevated temperature causes rock dissolution thereby increasing permeability; however, the rock is mechanically weak leading to compressing of the solid matrix during injection. Permeability and porosity can decrease at the onset of fluid flow. A laboratory flow apparatus was designed and built to examine these processes in diatomite core samples.

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27 pages

Creation Information

Diabira, I.; Castanier, L.M. & Kovscek, A.R. April 19, 2001.

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Description

An experimental study of silica dissolution was performed to probe the evolution of permeability and porosity in siliceous diatomite during hot fluid injection such as water or steam flooding. Two competing mechanisms were identified. Silica solubility in water at elevated temperature causes rock dissolution thereby increasing permeability; however, the rock is mechanically weak leading to compressing of the solid matrix during injection. Permeability and porosity can decrease at the onset of fluid flow. A laboratory flow apparatus was designed and built to examine these processes in diatomite core samples.

Physical Description

27 pages

Notes

OSTI as DE00777917

Source

  • Other Information: PBD: 19 Apr 2001

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  • Report No.: DOE/BC/15311-4
  • Grant Number: FC26-00BC15311
  • DOI: 10.2172/777917 | External Link
  • Office of Scientific & Technical Information Report Number: 777917
  • Archival Resource Key: ark:/67531/metadc718676

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Creation Date

  • April 19, 2001

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • April 8, 2016, 4:34 p.m.

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Diabira, I.; Castanier, L.M. & Kovscek, A.R. Porosity and Permeability Evolution Accompanying Hot fluid Injection into Diatomite, SUPRI TR-123, report, April 19, 2001; Tulsa, Oklahoma. (digital.library.unt.edu/ark:/67531/metadc718676/: accessed August 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.