Relative Permeability and the Gross Pore Structure of Wood

Authors

  • F. O. Tesoro
  • E. T. Choong
  • O. K. Kimbler

Keywords:

Softwoods, hardwoods, specific permeability, effective permeability, absolute permeability, water, nitrogen gas

Abstract

Water-saturated, longitudinal core samples of nine hardwoods and three softwoods were measured for specific permeability and also for relative permeability to water and nitrogen gas. Constant flow rates were achieved for specific permeability. Relative permeability curve shapes were influenced more by the pore structure of wood than by its specific permeability. It appears that softwoods could be drained much lower in degree of saturation than hardwoods. In imbibition-type measurements, the softwoods were higher in saturation but lower in relative permeability than the hardwoods.

References

Brownscombe, E. R., R. L. Slobod, and B. H. Caudle. 1949. Laboratory determination of relative permeability. Drill. Prod. Prac. 302-315.nChoong, E. T., and O. K. Kimbler. 1971. A technique of measuring water flow in woods of low permeability. Wood Sci. 4(1):32-36.nCraft, B. C., and M. F. Hawkins. 1959. Applied petroleum reservoir engineering. Prentice-Hall, Inc. N.Y., N.Y. 437 pp.nKelso, W. C., R. O. Gertjejansen, and R. L. Hossfeld. 1963. The effect of air blockage upon the permeability of wood to liquids. Univ. of Minnesota Agr. Exp. Sta. Tech. Bull. 242. 40 pp.nNarayanamurti, D., V. Ranganathan, and R. S. Rata. 1951. Bewegung von Fluessigkeiten durch Holz (Movement of liquids through wood). Holz Roh- Werkst. 9(11):422-426.nTesoro, F. O., O. K. Kimbler, and E. T. Choong. 1972. Determination of the relative permeability of wood to oil and water. Wood Sci. 5(1):21-26.n

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Published

2007-06-05

Issue

Number 3 / Fall 1974

Section

Research Contributions

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