We present the acquisition details and the result of processing and imaging of a marine vibrator (MV) alphatest, which was recently successfully completed over the permanent monitoring system of the Johan Sverdrup field in the North Sea. The alpha-test includes the acquisition of a 3D swath of data using a single MV, several test lines using a two-unit source array covering 3-150Hz, and two ultra low-frequency single-unit lines covering 1-8Hz up to 18km offset. The preliminary result of processing and imaging of the3D swath produced images comparable to the legacy airgun array acquisition. Furthermore, our ultra-low frequency data show valuable signals even at 1.5Hz. Our results clearly show the realistic possibility of employing the MV for the acquisition of broadband seismic data at large scales.

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