Sub-sea seismic: Acquisition and data analysis procedures
The sub-sea sensing technology has been around for some time. The recently developed SUMIC (sub-sea seismic) technique has pointed out some new applications in exploration and production. This will have an impact on how marine seismic acquisition and seismic data analysis are performed. Current procedures will have to be modified to be able to honor the new requirements imposed by the SUMIC concept. The paper will highlight how these procedures have been modified to accommodate SUMIC. In particular how inclusion of elastic data might increase the confidence in lithology prediction and reservoir description from seismic data. In sea-bed sensing cost-effectiveness is an important objective. This normally implies a trade-off in sensor deployment efficiency versus sensor coupling quality. In SUMIC there is no compromise on the sensor coupling quality. This is key since the coupling quality to the seabed is crucial with respect to the fidelity of the sampled elastic wavefield. Compared to existing ocean-bottom-cable technology, the SUMIC technology represents a significant improvement of coupling quality. In the implementation of the SUMIC acquisition procedure it has been of importance to cater to both an add-on SUMIC experiment and a combined SUMIC experiment with conventional marine acquisition. In the first scenario, existing seismic data is supplemented with SUMIC data to enhance the lithological predictability relative to the existing dataset. In the second category there are, of course, no compatibility constraints with respect to existing data.
- OSTI ID:
- 136624
- Report Number(s):
- CONF-950501--
- Country of Publication:
- United States
- Language:
- English
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