Hydraulic properties of injection formations constrained by surface deformation

Manoochehr Shirzaei, Michael Manga, Guang Zhai

    Research output: Contribution to journalArticle

    Abstract

    Wastewater injection over the past decade has increased seismicity in the central USA, in some cases accompanied by detectable surface uplift. Here, we use this uplift to constrain subsurface properties and pore pressure evolution. We apply an advanced multitemporal interferometric algorithm to 35 synthetic aperture radar images acquired by ALOS satellite over four years before the 2012 earthquake sequence in east Texas, where large volumes of wastewater are disposed at depths of ∼800 m and ∼1800 m. To solve for the hydraulic diffusivity of the injection layers, we jointly inverted the injected volume and uplift data, considering a poroelastic layered half space. We find diffusivity values of 0.3±0.1 m 2 /s and 0.7±0.15 m 2 /s for shallow and deep injection layers, respectively, which combined with seismically-derived bulk moduli yields permeability values of 5.5±2.6×10 −14 m 2 and 1.9±0.25×10 −13 m 2 for these layers, consistent with permeability range reported for Rodessa formation and well test values. Hydraulic conductivity determines the evolution of pore pressure and thus the origin and location of induced seismicity. This study highlights the value of geodetic observations to constrain key hydrogeological properties of injection layers and to monitor the evolution of the subsurface pressure change.

    Original languageEnglish (US)
    Pages (from-to)125-134
    Number of pages10
    JournalEarth and Planetary Science Letters
    Volume515
    DOIs
    StatePublished - Jun 1 2019

    Fingerprint

    Pore pressure
    hydraulic property
    hydraulics
    Wastewater
    Hydraulics
    injection
    uplift
    Hydraulic conductivity
    Synthetic aperture radar
    pore pressure
    diffusivity
    Earthquakes
    permeability
    Elastic moduli
    Satellites
    porosity
    wastewater
    induced seismicity
    ALOS
    bulk modulus

    Keywords

    • estimating hydraulic diffusivity
    • injection induced seismicity
    • InSAR time series
    • poroelastic model inversion

    ASJC Scopus subject areas

    • Geophysics
    • Geochemistry and Petrology
    • Earth and Planetary Sciences (miscellaneous)
    • Space and Planetary Science

    Cite this

    Hydraulic properties of injection formations constrained by surface deformation. / Shirzaei, Manoochehr; Manga, Michael; Zhai, Guang.

    In: Earth and Planetary Science Letters, Vol. 515, 01.06.2019, p. 125-134.

    Research output: Contribution to journalArticle

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