4D Seismic Monitoring with Diffraction-Angle-Filtering for Carbon Capture and Storage (CCS)

نویسندگان

چکیده

Carbon capture and storage (CCS) is a key technology that directly removes industry driven CO2 to achieve carbon neutrality. In the process of CCS, it necessary monitor whether injected properly stored not leaking. The behavior can be investigated using 4D seismic survey compares data before after injection. We proposed two-step monitoring with diffraction-angle filtering (DAF) effectively locate plume. Because DAF allows us control wavenumber components, gradient full-waveform inversion (FWI), which first step, composed low-wavenumber reverse time migration (RTM) for imaging carried out high-wavelength components. To verify our method, we implemented FWI RTM without velocity model in Volve oil field North Sea. Numerical examples show plume detected from difference between baseline post-injected extension reflective boundary improved compared results conventional method. With local minima problem mitigated FWI, boundaries layers clearly distinguished RTM.

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ژورنال

عنوان ژورنال: Journal of Marine Science and Engineering

سال: 2022

ISSN: ['2077-1312']

DOI: https://doi.org/10.3390/jmse11010057