Schlumberger

Surface Wave Analysis, Modeling, and Inversion (SWAMI)—Highly Aliased Noise Attenuation

Overview Library

Using the same spectra as generated for SWAMI velocity analysis, each mode of the surface wave can be fully characterized. By migrating this back to a point it can be isolated from all other energy within a gather, including other modes of surface wave energy.

Because of the linear nature of surface wave propagation, the spectra can represent the energy even if the individual gathers are highly under-sampled.

Subtraction of the modeled energy yields highly effective coherent noise attenuation, even when applied to highly aliased data.

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Fully Characterize Each Model of the Surface Wave

SWAMI highly aliased noise attenuation
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