Long-range, critical-point dynamics in oil field flow rate data

Ian G. Main, L. li, Kes Heffer, O. Papasouliotis, T. Leonard

    Research output: Contribution to journalArticle

    Abstract

    Earthquake triggering data exhibit long-range spatio-temporal correlations of the power-law form C(l) - l-a and anomalously-slow temporal diffusion of the mean triggering distance of the form: (l) - tH, with H < 0.5. We examine spatio-temporal correlations in subsurface effective stress state caused by fluid injection and extraction at well sites in a hydrocarbon reservoir using a multivariate statistical regression model, and observe long-range correlations in flow rate that cannot be caused by Darcy flow alone. Significantly-correlated well pairs align with the directions of incipient horizontal-displacement tensile and shear failure in the present-day stress field, while the contours of the first principal component of the regression matrix closely follow the macroscopic fault pattern in the main producing horizon. The correlation function for well pairs has a power-law form with a ˜ 0.5, and the mean correlation distance increases with H ˜ 0.33, implying a similar critical-point response to perturbations in effective stress as the earthquake data. Copyright 2006 by the American Geophysical Union.

    Original languageEnglish
    Article numberL18308
    JournalGeophysical Research Letters
    Volume33
    Issue number18
    DOIs
    Publication statusPublished - 28 Sep 2006

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    oil field
    effective stress
    power law
    earthquake
    fluid injection
    hydrocarbon reservoir
    stress field
    perturbation
    rate
    matrix

    Cite this

    Main, I. G., li, L., Heffer, K., Papasouliotis, O., & Leonard, T. (2006). Long-range, critical-point dynamics in oil field flow rate data. Geophysical Research Letters, 33(18), [L18308]. https://doi.org/10.1029/2006GL027357
    Main, Ian G. ; li, L. ; Heffer, Kes ; Papasouliotis, O. ; Leonard, T. / Long-range, critical-point dynamics in oil field flow rate data. In: Geophysical Research Letters. 2006 ; Vol. 33, No. 18.
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    Main, IG, li, L, Heffer, K, Papasouliotis, O & Leonard, T 2006, 'Long-range, critical-point dynamics in oil field flow rate data', Geophysical Research Letters, vol. 33, no. 18, L18308. https://doi.org/10.1029/2006GL027357

    Long-range, critical-point dynamics in oil field flow rate data. / Main, Ian G.; li, L.; Heffer, Kes; Papasouliotis, O.; Leonard, T.

    In: Geophysical Research Letters, Vol. 33, No. 18, L18308, 28.09.2006.

    Research output: Contribution to journalArticle

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    Main IG, li L, Heffer K, Papasouliotis O, Leonard T. Long-range, critical-point dynamics in oil field flow rate data. Geophysical Research Letters. 2006 Sep 28;33(18). L18308. https://doi.org/10.1029/2006GL027357