Deep Unsupervised 4-D Seismic 3-D Time-Shift Estimation With Convolutional Neural Networks

Jesper Sören Dramsch*, Anders Nymark Christensen, Colin Macbeth, Mikael Lüthje

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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We present a novel 3-D warping technique for the estimation of 4-D seismic time-shift. This unsupervised method provides a diffeomorphic 3-D time shift field that includes uncertainties, therefore, it does not need prior time-shift data to be trained. This results in a widely applicable method in time-lapse seismic data analysis that is not implicitly biased by supervised time-shifts from other methods. We explore the generalization of the method to unseen data both in the same geological setting and in a different field, where the generalization error stays constant and within an acceptable range across test cases. We further explore upsampling of the warp field from a smaller network to decrease computational cost and see some deterioration of the warp field quality as a result. This method provides an accurate 3-D seismic registration method, where the heavy computation can be preexecuted and the inference of the network taking seconds on consumer hardware.
Original languageEnglish
JournalI E E E Transactions on Geoscience and Remote Sensing
Number of pages16
Publication statusAccepted/In press - 2021


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