Receiver Deghosting and Upgoing Wavefield Reconstruction with Multi-Component Streamer Data

In an effort to eliminating the receiver ghost, the use of multi-component measurements was introduced, which records not only the pressure, but also the velocity (or acceleration) in the vertical and crossline directions. Because the vertical component has a different frequency notch pattern than that of the pressure, they can be combined for deghosting. In addition, both the crossline and vertical velocities can be beneficial for the sampling condition of the upgoing wavefield in the crossline direction. In this abstract, we describe two deghosting approaches that utilize multi-component measurements with the aim to deriving a densely sampled upgoing wavefield. The first approach is based on a ghost model, while the other approach is not. To establish the ghost model, accurate knowledge of the receiver depth and sea surface reflection coefficient is indispensable, which is in practice not always (accurately) available, therefore rendering the approach with a ghost model potentially less robust. On the other hand, it can be shown that the adoption of the ghost model helps improve the sampling condition, which can be of significance in reconstructing the wavefield in the crossline direction. These trade-offs will be studied in this abstract based on real data.