Use of geology in the interpretation of core-scale relative permeability data

P. S. Ringrose, J. L. Jensen, K. S. Sorbie

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    A number of factors, such as wettability, pore size distribution and core-scale heterogeneity, are known to affect the measured relative permeability in core plug samples. This paper focuses on the influence of geological structure at the laminaset scale on water-oil imbibition relative permeability curves. The endpoint positions and curve shapes vary as a function of the type of internal heterogeneity, the flow rate, and the assumptions on the pore-scale petrophysics (e.g. wettability). Interaction between the capillary forces and heterogeneity can occur at the cm-dm scale which results in widely varying two-phase flow behaviour for rocks with the same single-phase permeability. The geometry of heterogeneity as expressed in standard geological descriptions (e.g. cross-laminated, ripple-laminated, plane-laminated) can be translated into features of the expected relative permeability behaviour for each rock type, thus aiding the interpretation of relative permeability data. We illustrate how our findings can help to interpret sets of relative permeability data from the field, using some examples from the Admire sand, El Dorado Field, Kansas.

    Original languageEnglish
    Title of host publicationProceedings - SPE Annual Technical Conference and Exhibition
    Pages881-890
    Number of pages10
    VolumeOmega
    Publication statusPublished - 1994
    Event1994 SPE Annual Technical Conference and Exhibition - New Orleans, LA, United States
    Duration: 25 Sep 199428 Sep 1994

    Conference

    Conference1994 SPE Annual Technical Conference and Exhibition
    CountryUnited States
    CityNew Orleans, LA
    Period25/09/9428/09/94

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  • Cite this

    Ringrose, P. S., Jensen, J. L., & Sorbie, K. S. (1994). Use of geology in the interpretation of core-scale relative permeability data. In Proceedings - SPE Annual Technical Conference and Exhibition (Vol. Omega, pp. 881-890)