Experimental and Analytical Study of Multidimensional Imbibition in Fractured Porous Media, SUPRI TR-129

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Description

Using an X-ray computerized tomography (CT) scanner, and a novel, CT-compatible core holder, performed a series of experiments to study air and oil expulsion from rock samples by capillary imbibition of water in a three-dimensional geometry. The air-water system was useful in that a relatively large number of experiments can be conducted to delineate physical processes. Different injection rates and fracture apertures were utilized. Two different fracture flow regimes were identified. The ''filling-fracture'' regime shows a plane source that grows in length due to relatively slow water flow through fractures. In the second, ''instantly-filled fracture'' regime, the time to fill ... continued below

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31 pages

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Rangel-German, E.R. & Kovscek, A.R. April 24, 2002.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 17 times . More information about this report can be viewed below.

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Description

Using an X-ray computerized tomography (CT) scanner, and a novel, CT-compatible core holder, performed a series of experiments to study air and oil expulsion from rock samples by capillary imbibition of water in a three-dimensional geometry. The air-water system was useful in that a relatively large number of experiments can be conducted to delineate physical processes. Different injection rates and fracture apertures were utilized. Two different fracture flow regimes were identified. The ''filling-fracture'' regime shows a plane source that grows in length due to relatively slow water flow through fractures. In the second, ''instantly-filled fracture'' regime, the time to fill the fracture is much less than the imbibition time. Here, imbibition performance scales as the square root of time. In the former regime, the mass of water imbibed scales linearly with time.

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31 pages

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OSTI as DE00793652

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  • Other Information: PBD: 24 Apr 2002

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  • Report No.: DOE/BC/15311-9
  • Grant Number: FC26-00BC15311
  • DOI: 10.2172/793652 | External Link
  • Office of Scientific & Technical Information Report Number: 793652
  • Archival Resource Key: ark:/67531/metadc743259

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  • April 24, 2002

Added to The UNT Digital Library

  • Oct. 19, 2015, 7:39 p.m.

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  • April 8, 2016, 2:31 p.m.

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Rangel-German, E.R. & Kovscek, A.R. Experimental and Analytical Study of Multidimensional Imbibition in Fractured Porous Media, SUPRI TR-129, report, April 24, 2002; Tulsa, Oklahoma. (digital.library.unt.edu/ark:/67531/metadc743259/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.