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Inferences of ocean currents from seismic streamer position data
- Source: Geophysical Prospecting, Volume 65, Issue 5, Aug 2017, p. 1155 - 1185
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- 29 Dec 2015
- 10 Oct 2016
- 18 Nov 2016
Abstract
ABSTRACT
This paper describes the first attempt to infer ocean currents from the shapes of seismic streamers using real data. It demonstrates that it is feasible to infer the ocean currents, using a total least‐squares solution at each shotpoint, when there is no lateral steering. There are some artefacts in the inferred currents when there is lateral steering; this is believed to be caused by errors in estimating the streamer velocity. This paper describes the residual equations that form the cost function and discusses how to choose weights in the cost function based on physical criteria. Correctly choosing weights is something of an art and requires further research to make automatic and robust.
© 2017 European Association of Geoscientists & Engineers © 2016 European Association of Geoscientists & Engineers