Rock matrix and fracture analysis of flow in western tight gas sands

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Description

Advanced core analysis includes measurements on the matrix properties of the rock. Matrix properties are important even in fractured wells since it is these properties which determine the rate of gas flow into the fractures. Cores are being tested from the fluvial, coastal, and paludal zones of the Mesaverde. At least two cores from each of these zones from all three wells will be analyzed. Properties measured include permeability as a function of confining pressure over the range of 500 to 5000 psi. A minimum of two Klinkenberg permeabilities are being determined from at least five data points. Interpretation includes ... continued below

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Pages: (13 p)

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Morrow, N.R.; Brower, K.R. & Ward, J.S. January 1, 1985.

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Description

Advanced core analysis includes measurements on the matrix properties of the rock. Matrix properties are important even in fractured wells since it is these properties which determine the rate of gas flow into the fractures. Cores are being tested from the fluvial, coastal, and paludal zones of the Mesaverde. At least two cores from each of these zones from all three wells will be analyzed. Properties measured include permeability as a function of confining pressure over the range of 500 to 5000 psi. A minimum of two Klinkenberg permeabilities are being determined from at least five data points. Interpretation includes estimates of pore size from gas slippage. Water adsorption and desorption isotherms will be determined for selected samples with data points being obtained at the following relative humidities: 0, 20, 40, 60, 75, 90, 92, 95 and 98. Porosity measurements from both thin section examination and volumetric measurements are being made. These results will be compared with the porosities of the cored internals determined from logs.

Physical Description

Pages: (13 p)

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OSTI; NTIS; GPO Dep.

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  • Other: DE92017655
  • Report No.: DOE/MC/21179-T5
  • Report No.: PRRC--85-13
  • Grant Number: AC21-84MC21179
  • DOI: 10.2172/5053363 | External Link
  • Office of Scientific & Technical Information Report Number: 5053363
  • Archival Resource Key: ark:/67531/metadc1053448

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • January 1, 1985

Added to The UNT Digital Library

  • Jan. 22, 2018, 7:23 a.m.

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  • Jan. 29, 2018, 1:51 p.m.

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Morrow, N.R.; Brower, K.R. & Ward, J.S. Rock matrix and fracture analysis of flow in western tight gas sands, report, January 1, 1985; United States. (digital.library.unt.edu/ark:/67531/metadc1053448/: accessed November 13, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.