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Improving a Well Tie with Backus Upscaling

Notes (1). Figure 1Initial well tie. Synthetic is tied on deeper events and shows significant time mismatch at shallow event.Figure 2Cross-correlation over 1050 ms window between original synthetic seismogram and seismic trace at well location. Note lack of tie over long window.Figure 3Well logs are upscaled using a series of different length Backus upscalars..

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Improving a Well Tie with Backus Upscaling

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    1. 16 March 2012 © Earthworks Environment & Resources Ltd. All rights reserved 1 Improving a Well Tie with Backus Upscaling

    2. Notes (1)

    3. Notes (2)

    4. Figure 1 Well Tie – Original Logs

    5. Figure 2 Cross-correlation – Original Logs

    6. Figure 3 Cross Correlation Test

    7. Figure 4 Well Tie – Upscaled Logs

    8. Figure 5 Cross-correlation – Upscaled Logs

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