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    Integrating gravimetric and interferometric synthetic aperture radar data for enhancing reservoir history matching of carbonate gas and volatile oil reservoirs

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    Type
    Article
    Authors
    Katterbauer, Klemens cc
    Arango, Santiago
    Sun, Shuyu cc
    Hoteit, Ibrahim cc
    KAUST Department
    Computational Transport Phenomena Lab
    Earth Fluid Modeling and Prediction Group
    Earth Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2016-08-25
    Online Publication Date
    2016-08-25
    Print Publication Date
    2017-01
    Permanent link to this record
    http://hdl.handle.net/10754/622561
    
    Metadata
    Show full item record
    Abstract
    Reservoir history matching is assuming a critical role in understanding reservoir characteristics, tracking water fronts, and forecasting production. While production data have been incorporated for matching reservoir production levels and estimating critical reservoir parameters, the sparse spatial nature of this dataset limits the efficiency of the history matching process. Recently, gravimetry techniques have significantly advanced to the point of providing measurement accuracy in the microgal range and consequently can be used for the tracking of gas displacement caused by water influx. While gravity measurements provide information on subsurface density changes, i.e., the composition of the reservoir, these data do only yield marginal information about temporal displacements of oil and inflowing water. We propose to complement gravimetric data with interferometric synthetic aperture radar surface deformation data to exploit the strong pressure deformation relationship for enhancing fluid flow direction forecasts. We have developed an ensemble Kalman-filter-based history matching framework for gas, gas condensate, and volatile oil reservoirs, which synergizes time-lapse gravity and interferometric synthetic aperture radar data for improved reservoir management and reservoir forecasts. Based on a dual state-parameter estimation algorithm separating the estimation of static reservoir parameters from the dynamic reservoir parameters, our numerical experiments demonstrate that history matching gravity measurements allow monitoring the density changes caused by oil-gas phase transition and water influx to determine the saturation levels, whereas the interferometric synthetic aperture radar measurements help to improve the forecasts of hydrocarbon production and water displacement directions. The reservoir estimates resulting from the dual filtering scheme are on average 20%-40% better than those from the joint estimation scheme, but require about a 30% increase in computational cost. © 2016 European Association of Geoscientists & Engineers.
    Citation
    Katterbauer K, Arango S, Sun S, Hoteit I (2016) Integrating gravimetric and interferometric synthetic aperture radar data for enhancing reservoir history matching of carbonate gas and volatile oil reservoirs. Geophysical Prospecting 65: 337–364. Available: http://dx.doi.org/10.1111/1365-2478.12371.
    Sponsors
    The work presented in this paper has been supported in part by King Abdullah University of Science and Technology (KAUST).
    Publisher
    Wiley
    Journal
    Geophysical Prospecting
    DOI
    10.1111/1365-2478.12371
    Additional Links
    http://onlinelibrary.wiley.com/doi/10.1111/1365-2478.12371/full
    ae974a485f413a2113503eed53cd6c53
    10.1111/1365-2478.12371
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Earth Science and Engineering Program; Computational Transport Phenomena Lab

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