1887

Abstract

Summary

An extensive laboratory testing program and round robin test suggests that:-

  • Good agreement can be obtained between laboratories in terms of grain density, bulk density and porosity as long as samples are cleaned in a similar way and helium pycnometry is used for grain density.
  • It is not recommended making porosity measurements using nitrogen or methane due to gas adsoption.
  • Stress corrections need to be applied for bulk density measurements due to the presence of induced-microfractures; Hg injection analysis may provide a cheap way of providing data to make suc6h stress corrections.
  • The crushed shale method is not recommended for estimating permeability.
  • Core plug permeability measurements are often overly influenced by damage (fractures) and it is recommended inverting results using a dual permeability model.
  • Models incorporating transitional flow and Knudsen diffusion seem too complicated to be used to effectively invert the results from transient flow experiments. Instead, simple gas slippage models are recommended.

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/content/papers/10.3997/2214-4609.201600389
2016-05-02
2024-03-28
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References

  1. LorincziP., BurnsA.D., LesnicD., FisherQ.J., CrookA.J., GrattoniC., RybalcenkoK.
    [2014] Direct and inverse methods for determining gas flow properties of shale. Society of Petroleum Engineers, Paper SPE-167750-MS, 1–26. doi: 10.2118/167750‑MS.
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