| 摘要 |
<p>A technique is provided for identifying an internal multiple generator (110) in a subterranean structure (106). The technique includes injecting wavefields at different levels in the subterranean structure, where the different levels are proximate a predicted location (200) of the internal multiple generator (110). Wavefields induced by the injected wavefields are recorded and the effect of the internal multiple generator based on the recorded wavefields is determined.
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