Simultaneous inversion for velocity and attenuation by waveform tomography
نویسندگان
چکیده
منابع مشابه
Simultaneous inversion of the background velocity and the perturbation in full-waveform inversion
The gradient of standard full-waveform inversion (FWI) attempts to map the residuals in the data to perturbations in the model. Such perturbations may include smooth background updates from the transmission components and high wavenumber updates from the reflection components. However, if we fix the reflection components using imaging, the gradient of what is referred to as reflected-waveform i...
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We have developed an inversion formulation for velocity and attenuation structure using seismic attributes, including envelope amplitude, instantaneous frequency and arrival times of selected seismic phases. We refer to this approach as AFT inversion for amplitude, (instantaneous) frequency and time. Complex trace analysis is used to extract the different seismic attributes. The instantaneous f...
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The in situ permeability of a formation is obtained by the inversion of Stoneley wave phase velocity and attenuation, which are evaluated by applying the Extended Prony's method to the array sonic logging data. The Maximum Likelihood inversion is used together with logarithmic parameterization of the permeabilities. Formation shear wave velocity is also inverted for. This process is tested on b...
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ژورنال
عنوان ژورنال: Journal of Applied Geophysics
سال: 2016
ISSN: 0926-9851
DOI: 10.1016/j.jappgeo.2016.05.012